10 Vạn Câu Hỏi Vì Sao - Vật Lý (Nhà Xuất Bản Giáo Dục)

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T\u1eeb\tkho\u00e1:\tM\u00e1y\tph\u00e1t\t\u0111i\u1ec7n;\t\u0110\u0129a\th\u00e1t;\t\u0110\u0129a\th\u00e1t\tlaze\t(CD),\tLaze;\tS\u1ed1\tho\u00e1. 208.\tV\u00ec\tsao\tb\u0103ng\tt\u1eeb\tc\u00f3\tth\u1ec3\tghi\t\u00e2m,\tghi\th\u00ecnh? https:\/\/thuviensach.vn","B\u0103ng\tt\u1eeb\tghi\t\u00e2m\tv\u00e0\tghi\th\u00ecnh\t\u0111\u01b0\u1ee3c\tl\u00e0m\tra\tdo\tm\u1ed9t\tlo\u1ea1i\th\u1ea1t\tb\u1ed9t\tt\u1eeb\th\u1ebft\ts\u1ee9c\tnh\u1ecf m\u1ecbn,\tc\u1ed9ng\tth\u00eam\t ch\u1ea5t\tk\u1ebft\t d\u00ednh,\tph\u1ebft\th\u1ebft\t s\u1ee9c\t\u0111\u1ed3ng\t \u0111\u1ec1u\tl\u00ean\tn\u1ec1n\t c\u1ee7a\td\u1ea3i\t b\u0103ng terilen\tm\u00e0\tth\u00e0nh.\tNh\u1eefng\th\u1ea1t\tb\u1ed9t\tt\u1eeb\tn\u00e0y\ts\u1eafp\tx\u1ebfp\tr\u1ea5t\td\u00e0y\t\u0111\u1eb7c,\tkhi\tch\u1ecbu\ts\u1ef1\tbi\u1ebfn \u0111\u1ed5i\tc\u1ee7a\tt\u1eeb\ttr\u01b0\u1eddng,\ttr\u00ean\tm\u1eb7t\tch\u00fang\tli\u1ec1n\tl\u01b0u\tl\u1ea1i\tt\u1eeb\td\u01b0. \t \t\t T\u1eeb\td\u01b0\tbi\u1ebfn\t\u0111\u1ed5i\ttheo\ts\u1ef1\tbi\u1ebfn\t\u0111\u1ed5i\tc\u1ee7a\tc\u01b0\u1eddng\t\u0111\u1ed9\tt\u1eeb\ttr\u01b0\u1eddng.\tKhi\tti\u1ebfn\th\u00e0nh\tghi \u00e2m\tho\u1eb7c\tghi\th\u00ecnh\tl\u00ean\tb\u0103ng\tt\u1eeb\tth\u00ec\tph\u1ea3i\tth\u00f4ng\tqua\tmicro\tho\u1eb7c\tm\u00e1y\tquay\ttruy\u1ec1n h\u00ecnh\tbi\u1ebfn\t\u00e2m\tthanh\tho\u1eb7c\th\u00ecnh\t\u1ea3nh\tth\u00e0nh\tt\u00edn\thi\u1ec7u\t\u0111i\u1ec7n\tt\u01b0\u01a1ng\t\u1ee9ng\ttr\u01b0\u1edbc\t\u0111\u00e3,\tr\u1ed3i l\u1ea1i\tth\u00f4ng\tqua\t\u0111\u1ea7u\tt\u1eeb\tc\u1ee7a\tm\u00e1y\tghi\t\u00e2m\tho\u1eb7c\tm\u00e1y\tghi\th\u00ecnh\tbi\u1ebfn\tnh\u1eefng\tt\u00edn\thi\u1ec7u \u0111i\u1ec7n\t\u0111\u00f3\tth\u00e0nh\ts\u1ef1\tbi\u1ebfn\t\u0111\u1ed5i\tm\u1ea1nh\ty\u1ebfu\tc\u1ee7a\tt\u1eeb\ttr\u01b0\u1eddng.\t\u0110\u1ea7u\tt\u1eeb\tl\u00e0\tm\u1ed9t\tnam\tch\u00e2m \u0111i\u1ec7n\t\u0111\u1eb7c\tbi\u1ec7t.\tTr\u00ean\t\u0111\u1ec9nh\tc\u1ee7a\t\u0111\u1ea7u\tt\u1eeb\tc\u00f3\tm\u1ed9t\tkhe\th\u1edf.\tKhi\tb\u0103ng\tt\u1eeb\tch\u1ea1y\tqua\tkhe h\u1edf\tc\u1ee7a\t\u0111\u1ea7u\tt\u1eeb,\td\u00f2ng\t\u0111i\u1ec7n\tt\u00edn\thi\u1ec7u\tth\u00f4ng\tv\u00e0o\ttrong\tcu\u1ed9n\td\u00e2y\tc\u1ee7a\t\u0111\u1ea7u\tt\u1eeb,\ttr\u00ean b\u0103ng\tt\u1eeb\tk\u1ec1\ts\u00e1t\tkhe\th\u1edf\tc\u1ee7a\t\u0111\u1ea7u\tt\u1eeb\tli\u1ec1n\tc\u00f3\t\u0111\u01b0\u1eddng\ts\u1ee9c\tt\u1eeb\t\u0111i\tqua,\tb\u0103ng\tt\u1eeb\tb\u1ecb\tt\u1eeb ho\u00e1,\ts\u1ef1\tthay\t\u0111\u1ed5i\tc\u1ee7a\tt\u00edn\thi\u1ec7u\t\u0111i\u1ec7n\tli\u1ec1n\t\u0111\u01b0\u1ee3c\tghi\tl\u1ea1i\ttr\u00ean\tb\u0103ng\tt\u1eeb\tth\u00f4ng\tqua\ts\u1ef1 bi\u1ebfn\t\u0111\u1ed5i\tc\u1ee7a\tt\u1eeb\ttr\u01b0\u1eddng. 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Khi\tb\u1ea1n\tb\u1eadt\tc\u00f4ng\tt\u1eafc\tngu\u1ed3n\t\u0111i\u1ec7n\tc\u1ee7a\ttivi\tm\u00e0u,\th\u00ecnh\t\u1ea3nh\thi\u1ec7n\tr\u00f5\ttr\u00ean\tm\u00e0n hu\u1ef3nh\tquang,\tb\u1ea1n\tk\u1ec1\tg\u1ea7n\tn\u00f3\tv\u00e0\td\u00f9ng\tk\u00ednh\tl\u00fap\tquan\ts\u00e1t\tk\u0129,\ts\u1ebd\tnh\u1eadn\tth\u1ea5y\tc\u00f3\tr\u1ea5t nhi\u1ec1u\t mi\u1ebfng\t s\u00e1ng\t m\u00e0u\t h\u00ecnh\t ch\u1eef\t nh\u1eadt,\t c\u1ee9\t ba\t m\u1ea3nh\t l\u00e0m\t m\u1ed9t\t nh\u00f3m\t d\u1ef1a\t s\u00e1t nhau\th\u1ee3p\tth\u00e0nh\tm\u1ed9t\th\u00ecnh\tvu\u00f4ng.\tTrong\tm\u1ed7i\tmi\u1ebfng\th\u00ecnh\tvu\u00f4ng\t\u0111\u1ec1u\tc\u00f3\tba\tlo\u1ea1i m\u00e0u\ts\u1eafc\t\u0111\u1ecf,\tl\u1ee5c,\tlam,\tsong\tsong\tnh\u1eefng\tmi\u1ebfng\tvu\u00f4ng\tkh\u00e1c\tnhau,\t\u0111\u1ed9\tch\u00f3i\tc\u1ee7a ba\tm\u00e0u\t\u0111\u00f3\tkh\u00f4ng\tnh\u1ea5t\t\u0111\u1ecbnh\tb\u1eb1ng\tnhau.\tBa\tm\u1ea3nh\ts\u00e1ng\th\u00ecnh\tch\u1eef\tnh\u1eadt\t\u0111\u1ecf,\tl\u1ee5c, lam\td\u1ef1a\ts\u00e1t\tnhau\tn\u00e0y\tch\u1ed3ng\tl\u00ean\tnhau,\tl\u1ea1i\tli\u00ean\tk\u1ebft\tv\u1edbi\tmi\u1ebfng\th\u00ecnh\tvu\u00f4ng\tb\u00ean c\u1ea1nh\tth\u00e0nh\tm\u1ed9t\tt\u1ea5m,\thi\u1ec7n\tr\u00f5\tra\th\u00ecnh\t\u1ea3nh\tnhi\u1ec1u\tm\u00e0u,\ts\u1eafc\tth\u00e1i\tv\u00f4\tc\u00f9ng\tphong ph\u00fa. 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Kho\u1ea3ng\t c\u00e1ch\t c\u1ee7a\t tivi\t l\u00e0\t ch\u1ec9\t kho\u1ea3ng\t c\u00e1ch\t gi\u1eefa\t m\u1eaft\t ng\u01b0\u1eddi\t v\u1edbi\t \u0111i\u1ec3m\t gi\u1eefa c\u1ee7a\tm\u00e0n\th\u00ecnh.\tChi\u1ec1u\td\u00e0i\tc\u1ee7a\tkho\u1ea3ng\tc\u00e1ch\tn\u00e0y\tph\u1ea3i\td\u1ef1a\tv\u00e0o\tk\u00edch\tth\u01b0\u1edbc\tm\u00e0n h\u00ecnh\tc\u1ee7a\ttivi\tm\u00e0\tquy\u1ebft\t\u0111\u1ecbnh.\tTheo\tt\u00ednh\tto\u00e1n\tchung,\tkho\u1ea3ng\tc\u00e1ch\tn\u00e0y\tph\u1ea3i\tg\u1ea5p 7\t -\t 8\t l\u1ea7n\t chi\u1ec1u\t cao\t c\u1ee7a\t m\u00e0n\t h\u00ecnh\t tivi.\t N\u1ebfu\t l\u00e0\t tivi\t 35\t cm,\t kho\u1ea3ng\t c\u00e1ch\t xem v\u00e0o\tkho\u1ea3ng\t1,8\t-\t2\tm;\tkho\u1ea3ng\tc\u00e1ch\txem\tc\u1ee7a\ttivi\t47\tcm\tv\u00e0o\tkho\u1ea3ng\t2,2\t-\t2,6 m. https:\/\/thuviensach.vn","M\u1eaft\t\u1edf\tg\u1ea7n\tm\u00e0n\th\u00ecnh\tqu\u00e1,\th\u00ecnh\t\u1ea3nh\ttr\u00ean\tm\u00e0n\th\u00ecnh\ttr\u00e1i\tl\u1ea1i\ttr\u1edf\tn\u00ean\tkh\u00f4ng\tn\u00e9t. \u0110\u00f3\t l\u00e0\t v\u00ec\t h\u00ecnh\t \u1ea3nh\t hi\u1ec7n\t ra\t tr\u00ean\t m\u00e0n\t h\u00ecnh\t tivi\t do\t h\u00e0ng\t ng\u00e0n\t h\u00e0ng\t v\u1ea1n\t \u0111i\u1ec3m s\u00e1ng\t nh\u1ecf\t h\u1ee3p\t th\u00e0nh.\t Lo\u1ea1i\t \u0111i\u1ec3m\t s\u00e1ng\t nh\u1ecf\t n\u00e0y\t g\u1ecdi\t l\u00e0\t \\\"ph\u1ea7n\t t\u1eed\t \u1ea3nh\\\".\t N\u00f3\t do ch\u00f9m\telectron\tt\u1ed1c\t\u0111\u1ed9\tcao,\tth\u00f4ng\tqua\tc\u01a1\tc\u1ea5u\tqu\u00e9t,\t\u0111\u1eadp\tl\u00ean\tm\u00e0n\thu\u1ef3nh\tquang m\u00e0\tsinh\tra.\tN\u1ebfu\t\u1edf\tg\u1ea7n\tm\u00e0n\th\u00ecnh\tqu\u00e1,\tph\u1ea7n\tt\u1eed\t\u1ea3nh\ttr\u00ean\tm\u00e0n\thu\u1ef3nh\tquang\t\u0111\u1ec1u l\u1ed9\tr\u00f5\tra\th\u1ebft,\th\u00ecnh\t\u1ea3nh\tnh\u00ecn\tv\u00e0o\tkh\u00f4ng\tn\u00e9t\tn\u1eefa. C\u00f2n\t m\u1ed9t\t nguy\u00ean\t nh\u00e2n\t kh\u00e1c,\t \u1edf\t g\u1ea7n\t m\u00e0n\t h\u00ecnh\t qu\u00e1,\t tia\t s\u00e1ng\t qu\u00e1\t ch\u00f3i\t tr\u00ean m\u00e0n\th\u00ecnh\tk\u00edch\tth\u00edch\tm\u1eaft\ts\u1ebd\tt\u1ed5n\th\u1ea1i\tth\u1ecb\tl\u1ef1c.\tC\u00e1i\t\u0111\u00f3\tc\u00f3\tc\u00f9ng\tnguy\u00ean\tnh\u00e2n\tv\u1edbi vi\u1ec7c\t\u0111\u1ecdc\ts\u00e1ch\td\u01b0\u1edbi\t\u00e1nh\ts\u00e1ng\tm\u1ea1nh. Ngo\u00e0i\tra\tm\u1ed9t\tnguy\u00ean\tnh\u00e2n\tr\u1ea5t\tquan\ttr\u1ecdng\tn\u1eefa\tl\u00e0\t\u1edf\tg\u1ea7n\tm\u00e0n\th\u00ecnh\ttivi\tqu\u00e1, c\u01a1\t th\u1ec3\t ng\u01b0\u1eddi\t d\u1ec5\t b\u1ecb\t b\u1ee9c\t x\u1ea1\t c\u1ee7a\t tia\t X\t t\u1eeb\t tr\u00ean\t m\u00e0n\t h\u00ecnh\t r\u00f2\t tho\u00e1t\t ra,\t l\u00e0m\t \u1ea3nh h\u01b0\u1edfng\tt\u1edbi\ts\u1ee9c\tkho\u1ebb. Khi\ttivi\tho\u1ea1t\t\u0111\u1ed9ng,\telectron\tt\u1ed1c\t\u0111\u1ed9\tcao\t\u0111\u1eadp\tv\u00e0o\tm\u00e0n\thu\u1ef3nh\tquang\tc\u1ee7a\t\u0111\u00e8n hi\u1ec7n\t h\u00ecnh,\t s\u1ebd\t k\u00edch\t ph\u00e1t\t ra\t tia\t X\t t\u1eeb\t tr\u00ean\t m\u00e0n\t hu\u1ef3nh\t quang.\t K\u00edch\t th\u01b0\u1edbc\t \u0111\u00e8n hi\u1ec7n\th\u00ecnh\tc\u00e0ng\tl\u1edbn,\ttia\tX\ts\u1ea3n\tsinh\tra\tc\u0169ng\tc\u00e0ng\tnhi\u1ec1u,\t\u0111\u1eb7c\tbi\u1ec7t\tl\u00e0\ttivi\tm\u00e0u. \u0110\u00e8n\thi\u1ec7n\th\u00ecnh\tc\u1ee7a\ttivi\t\u0111\u01b0\u1ee3c\tthi\u1ebft\tk\u1ebf\tch\u1ebf\tt\u1ea1o\t\u0111\u1eb7c\tbi\u1ec7t,\ttrong\tv\u1ecf\tpha\tl\u00ea\tc\u1ee7a \u0111\u00e8n\tc\u00f3\t\u0111\u01b0a\tv\u00e0o\tth\u00e0nh\tph\u1ea7n\tch\u00ec\tkim\tlo\u1ea1i\tc\u00f3\tth\u1ec3\th\u1ea5p\tthu\ttia\tX,\tv\u1ecf\tpha\tl\u00ea\tc\u0169ng \u0111\u01b0\u1ee3c\t\u0111\u00fac\td\u00e0y\tv\u00e0\tch\u1eafc\t\u0111\u1eb7c\tbi\u1ec7t,\tsong\tv\u1eabn\tc\u00f3\tth\u1ec3\tc\u00f3\tm\u1ed9t\tph\u1ea7n\tr\u1ea5t\tnh\u1ecf\ttia\tX\tr\u00f2 tho\u00e1t\tra.\tNg\u01b0\u1eddi\tc\u00e1ch\txa\tm\u00e0n\th\u00ecnh\tm\u1ed9t\tch\u00fat,\ttia\tX\tchi\u1ebfu\tt\u1edbi\ts\u1ebd\ty\u1ebfu\tm\u1ed9t\tch\u00fat. N\u1ebfu\t gi\u1eef\t \u0111\u01b0\u1ee3c\t kho\u1ea3ng\t c\u00e1ch\t th\u00edch\t h\u1ee3p\t v\u1edbi\t m\u00e0n\t h\u00ecnh\t th\u00ec\t tia\t X\t t\u1eeb\t m\u00e0n\t h\u00ecnh chi\u1ebfu\t t\u1edbi\t c\u01a1\t th\u1ec3\t ng\u01b0\u1eddi\t s\u1ebd\t nh\u1ecf\t kh\u00f4ng\t \u0111\u00e1ng\t k\u1ec3,\t kh\u00f4ng\t l\u00e0m\t t\u1ed5n\t h\u1ea1i\t s\u1ee9c\t kho\u1ebb \u0111\u01b0\u1ee3c. Ngo\u00e0i\tra,\tkhi\txem\ttruy\u1ec1n\th\u00ecnh\tngo\u00e0i\tvi\u1ec7c\tph\u1ea3i\tgi\u1eef\tkho\u1ea3ng\tc\u00e1ch\tnh\u1ea5t\t\u0111\u1ecbnh ra,\tc\u00f2n\tph\u1ea3i\tch\u00fa\t\u00fd\t\u0111\u1ed9\tcao\tc\u1ee7a\tm\u1eaft\tn\u00ean\th\u01a1i\tcao\th\u01a1n\tm\u00e0n\th\u00ecnh,\tn\u00f3i\tchung\tv\u00e0o kho\u1ea3ng\t3\t-\t5\tcm\ttr\u00ean\t\u0111i\u1ec3m\tgi\u1eefa\tm\u00e0n\th\u00ecnh,\tnh\u01b0\tv\u1eady\txem\t\u0111\u1ee1\tm\u1ea5t\ts\u1ee9c,\tcon\tm\u1eaft s\u1ebd\tkh\u00f4ng\tc\u1ea3m\tth\u1ea5y\tm\u1ec7t\tm\u1ecfi. https:\/\/thuviensach.vn","T\u1eeb\tkho\u00e1:\tTivi;\t\u0110\u00e8n\thi\u1ec7n\th\u00ecnh;\tM\u00e0n\thu\u1ef3nh\tquang;\tPh\u1ea7n\tt\u1eed\t\u1ea3nh;\tTia\tX. https:\/\/thuviensach.vn","211.\tV\u00ec\tsao\tc\u00f3\tlo\u1ea1i\ttivi\tc\u00f3\tch\u1ee9c\tn\u0103ng\tph\u00e2n chia\tm\u00e0n\th\u00ecnh? M\u1ed9t\t c\u00e1i\t tivi\t ch\u1ec9\t c\u00f3\t m\u1ed9t\t m\u00e0n\t h\u00ecnh,\t n\u00f3i\t chung\t ch\u1ec9\t c\u00f3\t th\u1ec3\t thu\t xem\t ti\u1ebft\t m\u1ee5c c\u1ee7a\tm\u1ed9t\tk\u00eanh.\tSong\tc\u00f3\tm\u1ed9t\tlo\u1ea1i\ttivi\tc\u00f3\tch\u1ee9c\tn\u0103ng\tph\u00e2n\tchia\tm\u00e0n\th\u00ecnh,\tc\u00f3\tth\u1ec3 \u0111\u1ed3ng\tth\u1eddi\tv\u1edbi\tvi\u1ec7c\tthu\txem\tb\u00ecnh\tth\u01b0\u1eddng\tti\u1ebft\tm\u1ee5c\tc\u1ee7a\tm\u1ed9t\tk\u00eanh\tn\u00e0o\t\u0111\u00f3,\ttr\u00ean m\u00e0n\th\u00ecnh\tm\u1edf\tra\th\u00ecnh\tt\u01b0\u1ee3ng\tnh\u1ecf,\tthu\txem\tti\u1ebft\tm\u1ee5c\tc\u1ee7a\tm\u1ed9t\tk\u00eanh\tkh\u00e1c. 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Th\u1ebf\tth\u00ec\tm\u00e1y\t \u0111i\u1ec1u\tho\u00e0\t kh\u00f4ng\tkh\u00ed\tnh\u01b0\t th\u1ebf\tn\u00e0o\t m\u1edbi\tc\u00f3\tt\u00e1c\t d\u1ee5ng\tl\u00e0m\t n\u00f3ng nh\u1ec9?\tTh\u1ef1c\tra,\tch\u1ec9\tc\u1ea7n\tbi\u1ebfn\t\u0111\u1ed5i\tb\u1ed9\tb\u1ed1c\th\u01a1i\tl\u1eafp\ttrong\tph\u00f2ng\tc\u1ee7a\tm\u00e1y\t\u0111i\u1ec1u\tho\u00e0 kh\u00f4ng\t kh\u00ed\t th\u00e0nh\t b\u1ed9\t ng\u01b0ng\t t\u1ee5,\t v\u00e0\t bi\u1ebfn\t \u0111\u1ed5i\t b\u1ed9\t ng\u01b0ng\t t\u1ee5\t l\u1eafp\t \u1edf\t ngo\u00e0i\t ph\u00f2ng th\u00e0nh\t b\u1ed9\t b\u1ed1c\t h\u01a1i,\t m\u00e1y\t \u0111i\u1ec1u\t ho\u00e0\t kh\u00f4ng\t kh\u00ed\t li\u1ec1n\t h\u00fat\t nhi\u1ec7t\t l\u01b0\u1ee3ng\t \u1edf\t ngo\u00e0i ph\u00f2ng,\t t\u00e1n\t ph\u00e1t\t v\u00e0o\t trong\t ph\u00f2ng,\t th\u1ef1c\t hi\u1ec7n\t t\u00e1c\t d\u1ee5ng\t l\u00e0m\t n\u00f3ng.\t Mu\u1ed1n\t cho m\u00e1y\t\u0111i\u1ec1u\tho\u00e0\tkh\u00f4ng\tkh\u00ed\tho\u00e0n\tth\u00e0nh\tlo\u1ea1i\tchuy\u1ec3n\t\u0111\u1ed5i\tn\u00e0y,\tngo\u00e0i\tvi\u1ec7c\tph\u1ea3i\ts\u1eed d\u1ee5ng\t to\u00e0n\t b\u1ed9\t c\u1ea5u\t ki\u1ec7n\t khi\t l\u00e0m\t l\u1ea1nh\t ra,\t c\u00f2n\t ph\u1ea3i\t c\u00f3\t th\u00eam\t m\u1ed9t\t c\u00e1i\t van\t \u0111\u1ed5i chi\u1ec1u\tch\u1ea5t\tl\u00e0m\tl\u1ea1nh.\tKhi\tl\u00e0m\tn\u00f3ng,\tch\u1ec9\tc\u1ea7n\t\u0111i\u1ec1u\tkhi\u1ec3n\tc\u00f4ng\tt\u1eafc\tc\u1ee7a\tvan,\tl\u00e0m cho\tch\u1ea5t\tl\u00e0m\tl\u1ea1nh\tth\u1ec3\tkh\u00ed\t\u1edf\ttr\u1ea1ng\tth\u00e1i\tnhi\u1ec7t\t\u0111\u1ed9\tcao,\t\u00e1p\tsu\u1ea5t\tcao\tt\u1eeb\ttrong\tm\u00e1y n\u00e9n\tkh\u00ed\tchuy\u1ec3n\t\u0111\u1ed9ng\tra,\tkh\u00f4ng\tph\u1ea3i\t\u0111i\tv\u1ec1\th\u01b0\u1edbng\tb\u1ed9\tng\u01b0ng\tt\u1ee5\t\u1edf\tngo\u00e0i\tph\u00f2ng tr\u01b0\u1edbc,\tm\u00e0\tl\u00e0\tv\u1ec1\th\u01b0\u1edbng\tb\u1ed9\tb\u1ed1c\th\u01a1i\t\u1edf\ttrong\tph\u00f2ng\ttr\u01b0\u1edbc\t\u0111\u00e3,\t\u0111\u1ec3\tb\u1ed9\tb\u1ed1c\th\u01a1i\tthay th\u1ebf\t b\u1ed9\t ng\u01b0ng\t t\u1ee5\t m\u1ed9t\t c\u00e1ch\t nh\u00e2n\t t\u1ea1o.\t Ch\u1ea5t\t l\u00e0m\t l\u1ea1nh\t th\u1ec3\t kh\u00ed\t nhi\u1ec7t\t \u0111\u1ed9\t cao,\t \u00e1p su\u1ea5t\tcao\tchuy\u1ec3n\t\u0111\u1ed9ng\tv\u00e0o\tb\u1ed9\tb\u1ed1c\th\u01a1i,\tnhi\u1ec7t\t\u0111\u1ed9\ttr\u00ean\tb\u1ed9\tph\u1eadn\tn\u00e0y\tli\u1ec1n\tt\u0103ng\tl\u00ean \u0111\u1ed9t\tng\u1ed9t,\tth\u00f4ng\tqua\tqu\u1ea1t\tm\u00e1y\tth\u1ed5i\tgi\u00f3,\tnhanh\tch\u00f3ng\tt\u00e1n\tph\u00e1t\tnhi\u1ec7t\tl\u01b0\u1ee3ng\tra xung\tquanh,\tl\u00e0m\tcho\tnhi\u1ec7t\t\u0111\u1ed9\ttrong\tph\u00f2ng\td\u1ea7n\td\u1ea7n\tt\u0103ng\tl\u00ean,\tc\u00f3\tt\u00e1c\td\u1ee5ng\tl\u00e0m https:\/\/thuviensach.vn","n\u00f3ng.\t \u0110\u1ed3ng\t th\u1eddi,\t nhi\u1ec7t\t \u0111\u1ed9\t c\u1ee7a\t t\u1ea5m\t l\u00e0m\t l\u1ea1nh\t h\u1ea1\t xu\u1ed1ng,\t \u00e1p\t su\u1ea5t\t v\u1eabn\t cao\t nh\u01b0 c\u0169,\tt\u1eeb\tth\u1ec3\tkh\u00ed\tbi\u1ebfn\tsang\tth\u1ec3\tl\u1ecfng.\tCh\u1ea5t\tl\u00e0m\tl\u1ea1nh\tth\u1ec3\tl\u1ecfng\ts\u1ebd\tl\u01b0u\t\u0111\u1ed9ng\tv\u1ec1\tph\u00eda b\u1ed9\tng\u01b0ng\tt\u1ee5,\tho\u00e0n\tth\u00e0nh\tqu\u00e1\ttr\u00ecnh\tgi\u1ea3m\t\u00e1p\tsu\u1ea5t,\tb\u1ed1c\th\u01a1i\ttrong\tb\u1ed9\tng\u01b0ng\tt\u1ee5. V\u00ec\t v\u1eady,\t ch\u1ea5t\t l\u00e0m\t l\u1ea1nh\t trong\t b\u1ed9\t ng\u01b0ng\t t\u1ee5\t ph\u1ea3i\t h\u1ea5p\t thu\t nhi\u1ec7t\t l\u01b0\u1ee3ng\t xung quanh.\tN\u1ebfu\tb\u00ean\tngo\u00e0i\tph\u00f2ng\tb\u0103ng\ttuy\u1ebft\ttr\u00e0n\tng\u1eadp,\tkhi\tnhi\u1ec7t\t\u0111\u1ed9\tkh\u00f4ng\tkh\u00ed\t\u0111\u00e3 xu\u1ed1ng\t th\u1ea5p\t h\u01a1n\t nhi\u1ec7t\t \u0111\u1ed9\t tr\u00ean\t b\u1ed9\t ng\u01b0ng\t t\u1ee5,\t b\u1ed9\t ph\u1eadn\t n\u00e0y\t li\u1ec1n\t kh\u00f4ng\t th\u1ec3\t h\u00fat nhi\u1ec7t\tl\u01b0\u1ee3ng\tt\u1eeb\ttrong\tm\u00f4i\ttr\u01b0\u1eddng\txung\tquanh,\tm\u00e1y\t\u0111i\u1ec1u\tho\u00e0\tkh\u00f4ng\tkh\u00ed\tkh\u00f4ng sao\t l\u00e0m\t n\u00f3ng\t \u0111\u01b0\u1ee3c\t n\u1eefa.\t \u0110\u00f3\t l\u00e0\t \u0111i\u1ec1u\t c\u1ea7n\t ch\u00fa\t \u00fd\t khi\t s\u1eed\t d\u1ee5ng\t m\u00e1y\t \u0111i\u1ec1u\t ho\u00e0 kh\u00f4ng\tkh\u00ed. 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B\u1ea1c\thalogenua\tkh\u00f4ng\tb\u1ecb\tho\u00e0n\tnguy\u00ean\ttr\u00ean\tphim\ts\u1ebd\ttr\u00f4i\th\u1ebft\ttrong\tqu\u00e1\ttr\u00ecnh x\u1ed1i\tr\u1eeda.\tN\u1ebfu\tch\u00fang\tkh\u00f4ng\tb\u1ecb\tr\u1eeda\ttr\u00f4i\tth\u00ec\tm\u1ee9c\t\u0111\u1ed9\t\u0111\u1eadm\tnh\u1ea1t\tc\u1ee7a\th\u00ecnh\t\u1ea3nh\th\u00ecnh th\u00e0nh\t l\u00ean\t v\u1eeba\t \u0111\u00fang\t ng\u01b0\u1ee3c\t l\u1ea1i\t v\u1edbi\t b\u1ea1c\t halogenua\t c\u1ee7a\t \u1ea3nh\t \u00e2m\t h\u00ecnh\t th\u00e0nh\t do ho\u00e0n\t nguy\u00ean,\t l\u00e0\t m\u1ed9t\t b\u1ee9c\t \u1ea3nh\t chung.\t N\u1ebfu\t nh\u01b0\t kh\u00f4ng\t r\u1eeda\t s\u1ea1ch\t s\u1ed1\t b\u1ea1c halogenua\t \u0111\u00f3\t m\u00e0\t l\u00e0\t gi\u1eef\t nguy\u00ean\t ch\u1ed7\t v\u00e0\t s\u1ed1\t l\u01b0\u1ee3ng\t v\u1ed1n\t c\u00f3\t c\u1ee7a\t ch\u00fang\t r\u1ed3i khu\u1ebfch\t t\u00e1n\t \u0111\u1ebfn\t m\u1ed9t\t t\u1ea5m\t phim\t kh\u00e1c,\t sau\t \u0111\u00f3\t ti\u1ebfn\t h\u00e0nh\t hi\u1ec7n\t h\u00ecnh,\t \u0111\u1ecbnh\t h\u00ecnh, th\u1ebf\tch\u1eb3ng\tph\u1ea3i\tl\u00e0\tc\u00f3\tth\u1ec3\tnh\u1eadn\t\u0111\u01b0\u1ee3c\tm\u1ed9t\tt\u1ea5m\t\u1ea3nh\td\u01b0\u01a1ng\thay\tsao? 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Kh\u00e1c\tv\u1edbi\tvi\u1ec7c\t\u0111eo\tk\u00ednh,\t\u0111i\u1ec1u\ttr\u1ecb\tc\u1eadn\tth\u1ecb\tb\u1eb1ng\tph\u01b0\u01a1ng\tph\u00e1p\tlaze\tl\u00e0\tl\u1ee3i\td\u1ee5ng k\u0129\t thu\u1eadt\t laze\t \u0111\u1ec3\t thay\t \u0111\u1ed5i\t \u0111\u1ed9\t cong\t c\u1ee7a\t gi\u00e1c\t m\u1ea1c,\t gi\u00fap\t \u0111i\u1ec1u\t ch\u1ec9nh\t th\u1ecb\t l\u1ef1c\t \u1edf ng\u01b0\u1eddi\t b\u1ec7nh,\t ng\u01b0\u1eddi\t b\u1ec7nh\t c\u00f3\t th\u1ec3\t nh\u00ecn\t r\u00f5\t v\u1eadt\t th\u1ec3.\t Ph\u1eabu\t thu\u1eadt\t \u0111i\u1ec1u\t tr\u1ecb\t c\u1eadn\t th\u1ecb https:\/\/thuviensach.vn","b\u1eb1ng\t m\u00e1y\t laze\t exime,\t c\u00f3\t th\u1ec3\t ph\u00e1t\t ra\t s\u00f3ng\t tia\t t\u1eed\t ngo\u1ea1i\t d\u00e0i\t 193\t nm\t (1\t nm\t = 10-9\tm).\tD\u01b0\u1edbi\ts\u1ef1\t\u0111i\u1ec1u\tkhi\u1ec3n\tc\u1ee7a\tm\u00e1y\tt\u00ednh,\tlaze\tt\u1eebng\tch\u00fat\tt\u1eebng\tch\u00fat\tti\u1ebfn\th\u00e0nh \u201cgia\tc\u00f4ng\u201d\t\u0111\u1ed1i\tv\u1edbi\tb\u1ec1\tm\u1eb7t\tc\u1ee7a\tgi\u00e1c\tm\u1ea1c,\ttr\u1edf\tth\u00e0nh\tm\u1ed9t\t\u201ccon\tdao\tph\u1eabu\tthu\u1eadt\u201d v\u00f4\tc\u00f9ng\ttinh\tx\u1ea3o.\tLaze\tc\u00f3\t\u0111\u01b0\u1ee3c\tc\u00f4ng\tn\u0103ng\tki\u1ec7n\tto\u00e0n\tnh\u01b0\tth\u1ebf\tl\u00e0\tnh\u1edd\tt\u00ednh\tch\u1ea5t \u0111\u01a1n\ts\u1eafc,\t\u0111\u01a1n\tph\u01b0\u01a1ng\th\u01b0\u1edbng,\tc\u0169ng\tnh\u01b0\t\u0111\u1eb7c\t\u0111i\u1ec3m\td\u1ec5\t\u0111i\u1ec1u\tkhi\u1ec3n,\t\u1ed5n\t\u0111\u1ecbnh\tcao. 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Nguy\u00ean\tl\u00ed\tc\u00f4ng\tt\u00e1c\tc\u1ee7a\tvi\u1ec7c\tph\u00e1t\tti\u1ebft\tm\u1ee5c\th\u00ecnh\t\u1ea3nh\tc\u1ee7a\t\u0111\u0129a\tDVD\ttr\u00ean\tm\u00e1y DVD\tc\u0169ng\tgi\u1ed1ng\tnh\u01b0\tm\u00e1y\tCD\tho\u1eb7c\tVCD,\t\u0111\u1ec1u\tl\u00e0\tl\u1ee3i\td\u1ee5ng\tch\u00f9m\ttia\tlaze\tti\u1ebfn h\u00e0nh\tqu\u00e9t\tl\u00ean\tc\u00e1c\tv\u1ebft\tkh\u1eafc\ttr\u00ean\t\u0111\u0129a,\tc\u0103n\tc\u1ee9\tv\u00e0o\ts\u1ef1\tbi\u1ebfn\t\u0111\u1ed5i\tc\u1ee7a\tch\u00f9m\ttia\tlaze ph\u1ea3n\tx\u1ea1\ttr\u1edf\tl\u1ea1i\tt\u1eeb\tnh\u1eefng\tv\u1ebft\tkh\u1eafc,\tth\u00f4ng\tqua\ts\u1ef1\tchuy\u1ec3n\t\u0111\u1ed5i\tquang\t\u0111i\u1ec7n,\tl\u00e0m cho\tt\u00edn\thi\u1ec7u\t\u00e1nh\ts\u00e1ng\tbi\u1ebfn\tth\u00e0nh\tt\u00edn\thi\u1ec7u\t\u0111i\u1ec7n,\tr\u1ed3i\tl\u1ea1i\tth\u00f4ng\tqua\tx\u1eed\tl\u00ed\tk\u0129\tthu\u1eadt s\u1ed1,\tph\u00e1t\tra\th\u00ecnh\t\u1ea3nh\tv\u00e0\t\u00e2m\tthanh\ttr\u00ean\tm\u00e0n\thu\u1ef3nh\tquang\tv\u00e0\ttrong\tloa. V\u1ebft\tkh\u1eafc\ttr\u00ean\t\u0111\u0129a\tlaze\t\u0111\u01b0\u1ee3c\tch\u1ebf\tt\u1ea1o\tra\tkhi\tghi\tl\u1ea1i\tti\u1ebft\tm\u1ee5c\ttrong\tx\u01b0\u1edfng\ts\u1ea3n xu\u1ea5t.\tN\u00f3\tc\u00f3\tli\u00ean\tquan\tv\u1edbi\t\u0111\u1ed9\tl\u1edbn\tc\u1ee7a\tl\u01b0\u1ee3ng\tth\u00f4ng\ttin\tkhi\tghi\t\u0111\u1ec3\tch\u1ebf\tt\u1ea1o.\tV\u1ebft kh\u1eafc\tc\u00e0ng\tnhi\u1ec1u,\tl\u01b0\u1ee3ng\tth\u00f4ng\ttin\tl\u01b0u\tgi\u1eef\tc\u00e0ng\tl\u1edbn,\ts\u1ed1\tl\u01b0\u1ee3ng\tti\u1ebft\tm\u1ee5c\tph\u00e1t\tra c\u0169ng\tc\u00e0ng\tnhi\u1ec1u.\tV\u00ec\tv\u1eady,\tn\u00f3\tch\u1ec9\tc\u00f3\tth\u1ec3\tph\u00e1t\tra\tti\u1ebft\tm\u1ee5c\t\u00e2m\tthanh,\tch\u1ee9\tkh\u00f4ng th\u1ec3\t ph\u00e1t\t ra\t ti\u1ebft\t m\u1ee5c\t h\u00ecnh\t \u1ea3nh.\t V\u00ec\t l\u01b0\u1ee3ng\t th\u00f4ng\t tin\t c\u1ea7n\t thi\u1ebft\t \u0111\u1ea1i\t di\u1ec7n\t cho\t ti\u1ebft m\u1ee5c\t\u00e2m\tthanh\t\u00e2m\tnh\u1ea1c.\tC\u00f2n\tv\u1ebft\tkh\u1eafc\ttr\u00ean\t\u0111\u0129a\tVCD,\ttuy\tc\u00f3\tphong\tph\u00fa\th\u01a1n so\tv\u1edbi\t\u0111\u0129a\tCD,\t\u0111\u00e3\tc\u00f3\tth\u1ec3\tph\u00e1t\tra\tti\u1ebft\tm\u1ee5c\th\u00ecnh\t\u1ea3nh,\tsong\tso\tv\u1edbi\tDVD\tth\u00ec\tk\u00e9m https:\/\/thuviensach.vn","nhi\u1ec1u.\t\u0110\u00f3\tl\u00e0\tv\u00ec\ttr\u00ean\t\u0111\u0129a\tDVD\t\u0111\u00e3\ts\u1eed\td\u1ee5ng\tnhi\u1ec1u\tbi\u1ec7n\tph\u00e1p\tk\u0129\tthu\u1eadt,\tl\u1ea1i\tc\u00f2n\t\u00e1p d\u1ee5ng\tk\u0129\tthu\u1eadt\tn\u00e9n\ts\u1ed1\tti\u00ean\tti\u1ebfn\tn\u1eefa. Nh\u00ecn\tl\u00ean\tb\u1ec1\tm\u1eb7t\t\u0111\u0129a\tDVD\tth\u1ea5y\ts\u00e1ng\tb\u00f3ng\tnh\u01b0\tg\u01b0\u01a1ng,\tt\u1ef1a\th\u1ed3\tkh\u00f4ng\tkh\u00e1c g\u00ec\t\u0111\u0129a\tCD\tho\u1eb7c\tVCD.\tNh\u01b0ng\t\u1edf\td\u01b0\u1edbi\tk\u00ednh\thi\u1ec3n\tvi\tc\u00f3\tth\u1ec3\tnh\u1eadn\tra,\tv\u1ebft\tkh\u1eafc\tc\u1ee7a n\u00f3\t v\u1eeba\t m\u1ea3nh\t v\u1eeba\t d\u00e0y\t \u0111\u1eb7c,\t m\u1ee9c\t \u0111\u1ed9\t tinh\t t\u1ebf\t c\u1ee7a\t n\u00f3\t v\u01b0\u1ee3t\t qu\u00e1\t \u0111\u0129a\t CD\t v\u00e0\t \u0111\u0129a VCD\t r\u1ea5t\t nhi\u1ec1u.\t H\u01a1n\t n\u1eefa,\t m\u1eb7t\t kh\u1eafc\t ch\u1ebf\t c\u1ee7a\t v\u1ebft\t kh\u1eafc,\t t\u1eeb\t m\u1ed9t\t \u0111\u01b0\u1eddng\t \u0111\u01a1n chi\u1ebfc\tbi\u1ebfn\tth\u00e0nh\thai\t\u0111\u01b0\u1eddng\ttr\u00ean\td\u01b0\u1edbi,\th\u00ecnh\tth\u00e0nh\tm\u1eb7t\tph\u1ea3n\tx\u1ea1\tch\u00f9m\ttia\tlaze hai\t l\u1ed1i\t \u0111i.\t \u0110\u1ed3ng\t th\u1eddi,\t \u1edf\t m\u1eb7t\t sau\t c\u1ee7a\t \u0111\u0129a,\t c\u0169ng\t kh\u1eafc\t ch\u1ebf\t v\u1ebft\t kh\u1eafc,\t l\u00e0m\t cho l\u01b0\u1ee3ng\tth\u00f4ng\ttin\tt\u00edch\ttr\u1eef\ttr\u00ean\tm\u1ed9t\tt\u1ea5m\t\u0111\u0129a\tgia\tt\u0103ng\tg\u1ea5p\tb\u1ed9i.\t\u0110\u1ec3\tc\u00f3\tth\u1ec3\t\u0111\u1ecdc\tra v\u1ebft\tkh\u1eafc\ttinh\tt\u1ebf\td\u00e0y\t\u0111\u1eb7c\ttr\u00ean\t\u0111\u0129a\tDVD,\tch\u00f9m\ttia\tlaze\tchi\u1ebfu\tl\u00ean\tv\u1ebft\tkh\u1eafc\tc\u0169ng \u0111\u01b0\u1ee3c\t x\u1eed\t l\u00ed\t cho\t c\u00e0ng\t h\u1eb9p,\t c\u00e0ng\t m\u1ea3nh,\t l\u00e0m\t cho\t ch\u00f9m\t tia\t laze\t c\u00f3\t th\u1ec3\t t\u1ee5\t ti\u00eau m\u1ed9t\tc\u00e1ch\tchu\u1ea9n\tx\u00e1c\ttr\u00ean\tm\u1eb7t\tv\u1ebft\tkh\u1eafc. Ngo\u00e0i\t ra,\t khi\t ch\u1ebf\t t\u00e1c\t \u0111\u0129a\t DVD,\t c\u00e1c\t m\u1eb7t\t x\u1eed\t l\u00ed\t th\u00f4ng\t tin,\t c\u0169ng\t \u00e1p\t d\u1ee5ng\t k\u0129 thu\u1eadt\tn\u00e9n\ts\u1ed1\tti\u00ean\tti\u1ebfn\th\u01a1n.\tN\u00f3\tc\u00f3\tth\u1ec3\tc\u0103n\tc\u1ee9\tv\u00e0o\ttr\u1ea1ng\tth\u00e1i\tc\u1ee7a\th\u00ecnh\t\u1ea3nh,\tph\u00e2n bi\u1ec7t\tra\ts\u1ef1\tbi\u1ebfn\tho\u00e1\tch\u1eadm\tch\u1ea1p\ty\u00ean\tl\u1eb7ng.\tSau\t\u0111\u00f3,\tc\u0103n\tc\u1ee9\tv\u00e0o\t\u0111\u1eb7c\t\u0111i\u1ec3m\tl\u01b0\u1ee3ng th\u00f4ng\ttin\tch\u1ee9a\t\u0111\u1ef1ng\ttrong\ttr\u01b0\u1eddng\th\u1ee3p\tsau\tth\u00ec\tnh\u1ecf,\tti\u1ebfn\th\u00e0nh\tn\u00e9n\tv\u1edbi\tm\u1ee9c\t\u0111\u1ed9 kh\u00e1c\tnhau,\tr\u1ed3i\tl\u1ea7n\tl\u01b0\u1ee3t\tkh\u1eafc\tch\u1ebf\tl\u00ean\t\u0111\u0129a.\tCh\u1ee9\tkh\u00f4ng\tgi\u1ed1ng\tnh\u01b0\tki\u1ec3u\tkh\u1eafc\tch\u1ebf \u0111\u0129a\t VCD,\t b\u1ea5t\t k\u1ec3\t b\u1ee9c\t tranh\t h\u00ecnh\t \u1ea3nh\t l\u00e0\t \u0111\u01a1n\t \u0111i\u1ec7u\t y\u00ean\t t\u0129nh,\t hay\t l\u00e0\t ho\u1ea1t\t \u0111\u1ed9ng nh\u1ed9n\tnh\u1ecbp,\t\u0111\u1ec1u\tti\u1ebfn\th\u00e0nh\tn\u00e9n\tv\u1edbi\tm\u1ee9c\t\u0111\u1ed9\tnh\u01b0\tnhau,\tkh\u1eafc\tch\u1ebf\tm\u1ed9t\tc\u00e1ch\td\u00e0n \u0111\u1ec1u\tl\u00ean\t\u0111\u0129a.\tQua\t\u0111\u00f3\tl\u00e0m\tcho\t\u0111\u0129a\tv\u1edbi\tdi\u1ec7n\tt\u00edch\tc\u00f3\th\u1ea1n\t\u0111\u01b0\u1ee3c\tm\u1edf\tr\u1ed9ng\t\u0111\u1ea7y\t\u0111\u1ee7, gia\tt\u0103ng\tl\u01b0\u1ee3ng\tl\u01b0u\tgi\u1eef\tth\u00f4ng\ttin\tc\u1ee7a\t\u0111\u0129a. Song,\t khi\t ph\u00e1t\t ti\u1ebft\t m\u1ee5c\t h\u00ecnh\t \u1ea3nh\t b\u1eb1ng\t DVD,\t ph\u1ea3i\t s\u1eed\t d\u1ee5ng\t tivi\t c\u00f3\t \u0111\u1ed9\t n\u00e9t cao,\tth\u00f9ng\tloa\tv\u00e0\t\u0111\u1ea7u\tm\u00e1y\tph\u00e1t\tch\u1ea5t\tl\u01b0\u1ee3ng\t\u00e2m\tthanh\tcao\tnhi\u1ec1u\tk\u00eanh\tth\u00ec\tm\u1edbi th\u1ec3\thi\u1ec7n\th\u1ebft\t\u0111\u01b0\u1ee3c\ts\u1ee9c\th\u1ea5p\td\u1eabn\tk\u00ec\tl\u1ea1\tc\u1ee7a\tDVD. T\u1eeb\tkho\u00e1:\tLaze;\tK\u0129\tthu\u1eadt\tn\u00e9n\ts\u1ed1;\t\u0110\u0129a\th\u00e1t\tlaze\t(CD);\t\u0110\u0129a\tveo\tlaze\t(VCD); \u0110\u0129a\tveo\tlaze\td\u1ea1ng\ts\u1ed1\t(DVD). 225.\t\u0110\u1ed3\t\u0111i\u1ec7n\tlogic\tm\u1edd\td\u00f9ng\ttrong\tnh\u00e0\tl\u00e0\tg\u00ec? Tr\u00ean\tc\u00e1c\t\u0111\u1ed3\t\u0111i\u1ec7n\td\u00f9ng\ttrong\tnh\u00e0,\tc\u00f3\tc\u00e1i\tchuy\u1ec3n\tm\u1ea1ch\t\u0111i\u1ec1u\tkhi\u1ec3n\tc\u00e1c\tlo\u1ea1i ch\u1ee9c\tn\u0103ng.\tCh\u1ee9c\tn\u0103ng\tc\u00e0ng\tnhi\u1ec1u,\tchuy\u1ec3n\tm\u1ea1ch\t\u0111i\u1ec1u\tkhi\u1ec3n\tc\u0169ng\tc\u00e0ng\tnhi\u1ec1u, khi\t thao\t t\u00e1c\t r\u1ea5t\t kh\u00f4ng\t ti\u1ec7n\t l\u1ee3i.\t V\u1ea3\t l\u1ea1i,\t ch\u1ec9\t h\u01a1i\t s\u01a1\t \u00fd,\t b\u1ea5m\t nh\u1ea7m\t m\u1ed9t\t chuy\u1ec3n m\u1ea1ch\t\u0111i\u1ec1u\tkhi\u1ec3n\tth\u00ec\ts\u1ebd\t\u1ea3nh\th\u01b0\u1edfng\tt\u1edbi\tho\u1ea1t\t\u0111\u1ed9ng\tb\u00ecnh\tth\u01b0\u1eddng\tc\u1ee7a\t\u0111\u1ed3\t\u0111i\u1ec7n.\tV\u00ec v\u1eady,\tkhi\tthao\tt\u00e1c\tc\u1ea7n\tph\u1ea3i\th\u1ebft\ts\u1ee9c\tch\u00fa\t\u00fd,\tkh\u00f4ng\t\u0111\u01b0\u1ee3c\tqua\tloa\t\u0111\u1ea1i\tkh\u00e1i. Song,\tnh\u1eefng\t\u0111\u1ed3\t\u0111i\u1ec7n\td\u00f9ng\ttrong\tnh\u00e0\t\u0111\u01b0\u1ee3c\tthi\u1ebft\tk\u1ebf\ttheo\tk\u0129\tthu\u1eadt\t\u1ee9ng\td\u1ee5ng https:\/\/thuviensach.vn","logic\t m\u1edd,\t c\u0169ng\t t\u1ee9c\t l\u00e0\t \u0111\u1ed3\t \u0111i\u1ec7n\t m\u1edd\t d\u00f9ng\t trong\t nh\u00e0,\t ch\u1ec9\t c\u1ea7n\t m\u1edf\t c\u00e1i\t chuy\u1ec3n m\u1ea1ch\tt\u1ed5ng\tc\u1ee7a\tngu\u1ed3n\t\u0111i\u1ec7n,\tkh\u00f4ng\tc\u1ea7n\tthi\u1ebft\tph\u1ea3i\tb\u1ea5m\tc\u00e1c\tchuy\u1ec3n\tm\u1ea1ch\t\u0111i\u1ec1u khi\u1ec3n\t ch\u1ee9c\t n\u0103ng\t t\u1eebng\t c\u00e1i\t t\u1eebng\t c\u00e1i\t m\u1ed9t,\t n\u00f3\t s\u1ebd\t d\u1ef1a\t theo\t y\u00eau\t c\u1ea7u\t c\u1ee5\t th\u1ec3\t c\u1ee7a ng\u01b0\u1eddi\ts\u1eed\td\u1ee5ng,\tti\u1ebfn\th\u00e0nh\tc\u00f4ng\tvi\u1ec7c\tm\u1ed9t\tc\u00e1ch\tt\u1ef1\t\u0111\u1ed9ng.\tV\u00ec\ttrong\t\u0111\u1ed3\t\u0111i\u1ec7n\td\u00f9ng trong\tnh\u00e0\tc\u00f3\tl\u1eafp\tb\u1ed9\ttruy\u1ec1n\tc\u1ea3m\tc\u1ee7a\tc\u00e1c\tlo\u1ea1i\tch\u1ee9c\tn\u0103ng\tv\u00e0\tm\u00e1y\tt\u00ednh\tnh\u1ecf,\tt\u00edch tr\u1eef\tc\u1ea3\tm\u1ed9t\tl\u00f4\tc\u00e1c\tch\u01b0\u01a1ng\ttr\u00ecnh\tm\u00e1y\tt\u00ednh\t\u0111\u01b0\u1ee3c\tl\u1eadp\ttheo\tl\u00ed\tthuy\u1ebft\tlogic\tm\u1edd,\tm\u00f4 ph\u1ecfng\tc\u00e1c\tth\u00f3i\tquen\tthao\tt\u00e1c\tc\u1ee7a\tcon\tng\u01b0\u1eddi\tkhi\ts\u1eed\td\u1ee5ng\t\u0111\u1ed3\t\u0111i\u1ec7n\tgia\td\u1ee5ng,\tt\u1ef1 \u0111\u1ed9ng\t ti\u1ebfn\t h\u00e0nh\t ph\u00e1n\t \u0111o\u00e1n,\t x\u1eed\t l\u00ed,\t v\u00e0\t c\u00f2n\t c\u00f3\t \\\"tr\u00ed\t n\u0103ng\\\"\t h\u1ecdc\t t\u1eadp,\t ghi\t nh\u1edb\t v\u00e0 ch\u1ecdn\tt\u1ed1i\t\u01b0u.\tKhi\tn\u00f3\tl\u00e0m\tvi\u1ec7c,\ttuy\tth\u00f4ng\ttin\tnh\u1eadn\t\u0111\u01b0\u1ee3c\tt\u1eeb\ttrong\tc\u00e1c\tb\u1ed9\ttruy\u1ec1n c\u1ea3m\t kh\u00e1c\t nhau\t c\u00f3\t ch\u1ee9a\t nhi\u1ec1u\t nh\u00e2n\t t\u1ed1\t kh\u00f4ng\t x\u00e1c\t \u0111\u1ecbnh,\t nh\u01b0ng\t qua\t s\u1ef1\t \u0111i\u1ec1u khi\u1ec3n\tch\u01b0\u01a1ng\ttr\u00ecnh\tm\u00e1y\tt\u00ednh,\t\u0111\u1ec1u\tc\u00f3\tth\u1ec3\ttham\tgia\tv\u1eadn\th\u00e0nh\tv\u1edbi\tnh\u00e2n\tt\u1ed1\tx\u00e1c \u0111\u1ecbnh.\t N\u00f3\t kh\u00f4ng\t c\u1ea7n\t con\t ng\u01b0\u1eddi\t tr\u1ef1c\t ti\u1ebfp\t \u0111\u01b0a\t ra\t m\u1ec7nh\t l\u1ec7nh,\t b\u1ea5m\t c\u00e1c\t lo\u1ea1i chuy\u1ec3n\tm\u1ea1ch\tch\u1ee9c\tn\u0103ng\tti\u1ebfn\th\u00e0nh\tthao\tt\u00e1c.\tCho\td\u00f9\ttrong\tkhi\tn\u00f3\tv\u1eadn\th\u00e0nh\tc\u00f3 x\u1ea3y\tra\tt\u00ecnh\thu\u1ed1ng\tkh\u00e1c\tth\u01b0\u1eddng,\tm\u00e1y\tt\u00ednh\tc\u0169ng\ts\u1ebd\tt\u1ef1\t\u0111\u1ed9ng\t\u0111\u01b0a\tra\tm\u1ec7nh\tl\u1ec7nh, nhanh\tch\u00f3ng\tti\u1ebfn\th\u00e0nh\t\u0111i\u1ec1u\tch\u1ec9nh,\tkh\u00f4ng\tg\u00e2y\th\u01b0\th\u1ea1i\tcho\t\u0111i\u1ec7n\tgia\td\u1ee5ng. 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T\u1eeb\tkho\u00e1:\t\u0110\u1ed3\t\u0111i\u1ec7n\tm\u1edd;D\u00f9ng\ttrong\tnh\u00e0;\tLogic\tm\u1edd. https:\/\/thuviensach.vn","\u0110\u01b0\u1eddng\t nguy\u00ean\t c\u00f2n\t g\u1ecdi\t l\u00e0\t \u0111\u01b0\u1eddng\t glucogen\t \u2013\t sinh\t th\u00e0nh\t t\u1eeb\t \u0111\u01b0\u1eddng\t glucoza m\u1ea5t\tn\u01b0\u1edbc\t\u2013\tl\u00e0\tm\u1ed9t\tlo\u1ea1i\thidratcacbon\tquan\ttr\u1ecdng\tcung\tc\u1ea5p\tn\u0103ng\tl\u01b0\u1ee3ng\tcho\tc\u01a1 th\u1ec3.\t2\ttr\u01b0\u1eddng\th\u1ee3p\tc\u1ea7n\tph\u00e2n\tbi\u1ec7t:\t1.\ttr\u1ee9ng\tph\u00e2n\t\u0111\u00f4i\tth\u00e0nh\t2\tb\u00e0o\tthai\t2.\t2\ttr\u1ee9ng ri\u00eang\tth\u00e0nh\t2\tb\u00e0o\tthai\t\u0111\u1ed9c\tl\u1eadp.\tM\u1eabu\tTrung\tQu\u1ed1c\tkho\u1ea3ng\tb\u1eb1ng\t667\tm2;\t1\tha g\u1ea7n\t b\u1eb1ng\t 15\t m\u1eabu\t Trung\t Qu\u1ed1c\t M\u1ed9t\t s\u1ed1\t s\u00e1ch\t c\u1ee7a\t Trung\t Qu\u1ed1c\t v\u00e0\t th\u1ebf\t gi\u1edbi\t l\u1ea1i 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bay\t\u0111\u00e1nh\ts\u1eadp\tng\u00e0y\t11\/9\/2001\t-\tND\tTo\u00e0\tnh\u00e0\tn\u00e0y\t\u0111\u00e3\tb\u1ecb\tc\u00e1c\tph\u1ea7n\tt\u1eed\tkh\u1ee7ng\tb\u1ed1 d\u00f9ng\t m\u00e1y\t bay\t \u0111\u00e1nh\t s\u1eadp\t ng\u00e0y\t 11\/9\/2001\t -\t ND\t Georg\u00e9\t Pompidou\t (1911\t - 1974),\tl\u00e0m\tT\u1ed5ng\tth\u1ed1ng\tc\u1ed9ng\tho\u00e0\tPh\u00e1p\ttrong\tc\u00e1c\tn\u0103m\tt\u1eeb\t1969\t\u0111\u1ebfn\t1974\t-\tND B\u1ec7nh\tm\u1ee5n\tnh\u1ecf\tngo\u00e0i\tda\tth\u00e0nh\tt\u1eebng\tm\u1ea3ng,\tc\u00f3\tm\u00e0u\t\u0111\u1ecf\tg\u1ecdi\tl\u00e0\tx\u00edch\t\u0111i\u1ebfn,\tm\u00e0u tr\u1eafng\t l\u00e0\t b\u1ea1ch\t \u0111i\u1ebfn,\t m\u00e0u\t t\u00edm\t l\u00e0\t t\u1eed\t \u0111i\u1ebfn\t Xem\t ch\u00fa\t th\u00edch\t v\u1ec1\t rad\t v\u00e0\t Gy\t t\u1ea1i\t m\u1ee5c 180\ttrang\t371\tSinh\tquy\u1ec3n\ts\u1ed1\t2\t(Biosphere\t2)\ttheo\tWikipedia\tc\u00f3\tdi\u1ec7n\tt\u00edch\tx\u00e2y d\u1ef1ng\tl\u00e0\t12.700\tm2,\tchi\tph\u00ed\tkho\u1ea3ng\t200\ttri\u1ec7u\tUSD;\tc\u00f3\tm\u1ee5c\t\u0111\u00edch\tnghi\u00ean\tc\u1ee9u kh\u1ea3\t n\u0103ng\t con\t ng\u01b0\u1eddi\t s\u1ed1ng\t v\u00e0\t l\u00e0m\t vi\u1ec7c\t \u0111\u01b0\u1ee3c\t trong\t sinh\t quy\u1ec3n\t k\u00edn,\t ti\u1ebfn\t h\u00e0nh nh\u1eefng\t th\u00ed\t nghi\u1ec7m\t khoa\t h\u1ecdc.\t \u1ede\t Vi\u1ec7t\t Nam,\t theo\t ch\u1ec9\t th\u1ecb\t 20\/2000\/CT-TTg,\t \u0111\u00e3 c\u1ea5m\t d\u00f9ng\t x\u0103ng\t pha\t ch\u00ec\t tr\u00ean\t to\u00e0n\t qu\u1ed1c\t t\u1eeb\t ng\u00e0y\t 01\/11\/2001.\t Ng\u00e0y\t nay\t (t\u1eeb th\u00e1ng\t 8\t n\u0103m\t 2006)\t Di\u00eam\t V\u01b0\u01a1ng\t Tinh\t b\u1ecb\t gi\u00e1ng\t c\u1ea5p\t xu\u1ed1ng\t th\u00e0nh\t h\u00e0nh\t tinh l\u00f9n\tNg\u00e0y\tnay\tH\u1ed9i\tThi\u00ean\tv\u0103n\tQu\u1ed1c\tT\u1ebf\t\u0111\u00e3\tkh\u00f4ng\tc\u00f2n\tcoi\tn\u00f3\tl\u00e0\th\u00e0nh\ttinh\tn\u1eefa. \u1ede\tVi\u1ec7t\tNam\tg\u1ecdi\tc\u00e2y\tn\u00e0y\tl\u00e0\tc\u00e2y\td\u00e2y\tleo\tv\u1ea1n\tni\u00ean\tthanh,\tth\u01b0\u1eddng\ttr\u1ed3ng\t\u0111\u1ec3\ttrang https:\/\/thuviensach.vn","tr\u00ed.\tTheo\tquan\tni\u1ec7m\tm\u1edbi\tnh\u1ea5t\tth\u00ec\tn\u1ea5m\tthu\u1ed9c\tm\u1ed9t\tgi\u1edbi\tri\u00eang,\t\u0111\u1ed9c\tl\u1eadp\tv\u1edbi\tgi\u1edbi th\u1ef1c\tv\u1eadt.\t\u0110\u00f3\tl\u00e0\tgi\u1edbi\tn\u1ea5m.\tNhi\u1ec5m\ts\u1eafc\tth\u1ec3.\tTh\u1ec3\tnh\u1ecf\t\u1edf\td\u1ea1ng\tl\u00f4ng\tque\txu\u1ea5t\thi\u1ec7n khi\t t\u1ebf\t b\u00e0o\t ph\u00e2n\t chia\t gi\u00e1n\t ti\u1ebfp\t (ph\u00e2n\t chia\t c\u00f3\t l\u00f4ng)\t v\u00e0\t d\u1ec5\t b\u1ecb\t nhu\u1ed1m\t m\u00e0u\t b\u1edfi ch\u1ea5t\tnhu\u1ed9m\tki\u1ec1m\tt\u00ednh.\t\u0110\u01b0\u1ee3c\tt\u1ea1o\tn\u00ean\tb\u1edfi\ts\u1ef1\tcu\u1ed1n\tquanh\tx\u1ebfp\tch\u1ed3ng\tl\u00ean\tnhau c\u1ee7a\t s\u1ee3i\t t\u01a1\t ch\u1ea5t\t nhi\u1ec5m\t s\u1eafc\t d\u00e0i\t v\u00e0\t m\u1ea3nh.\t V\u00e0\t do\t axit\t nucleic\t c\u00f9ng\t protein\t t\u1ea1o th\u00e0nh,\t l\u00e0\t c\u01a1\t s\u1edf\t v\u1eadt\t ch\u1ea5t\t ch\u1ee7\t y\u1ebfu\t c\u1ee7a\t di\t truy\u1ec1n.\t Nhi\u1ec5m\t s\u1eafc\t th\u1ec3\t c\u1ee7a\t c\u00e1c\t lo\u1ea1i sinh\tv\u1eadt\tc\u00f3\ts\u1ed1\tl\u01b0\u1ee3ng,\th\u00ecnh\td\u00e1ng,\tk\u00edch\tth\u01b0\u1edbc\tnh\u1ea5t\t\u0111\u1ecbnh.\tT\u1ebf\tb\u00e0o\tth\u1ec3\tth\u01b0\u1eddng\tl\u00e0 song\tb\u1ed9i\tth\u1ec3,\tc\u00f3\thai\tnh\u00f3m\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3.\tTinh\tv\u00e0\tno\u00e3n\tl\u00e0\t\u0111\u01a1n\tb\u1ed9i\tth\u1ec3,\tch\u1ec9\tc\u00f3 m\u1ed9t\tnh\u00f3m\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3.\tTrong\tc\u00e1\tth\u1ec3\t\u0111\u1ef1c\tc\u00e1i\tkh\u00e1c\tnhau\tth\u00ec\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3 chia\tra\thai\tlo\u1ea1i:\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3\tgi\u1edbi\tt\u00ednh\tquy\u1ebft\t\u0111\u1ecbnh\t\u0111\u1ebfn\tt\u00ednh\ttr\u1ea1ng\tgi\u1edbi\tt\u00ednh\tv\u00e0 nhi\u1ec5m\ts\u1eafc\tth\u1ec3\tth\u01b0\u1eddng.\tV\u00ed\td\u1ee5\tt\u1ebf\tb\u00e0o\tth\u1ebf\tc\u1ee7a\tng\u01b0\u1eddi\tc\u00f3\t46\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3,\ttrong \u0111\u00f3\tc\u00f3\t44\tc\u00e1i\tl\u00e0\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3\tth\u01b0\u1eddng,\t2\tc\u00e1i\tl\u00e0\tnhi\u1ec5m\ts\u1eafc\tth\u1ec3\tgi\u1edbi\tt\u00ednh.\tNam c\u00f3\t 1\t nhi\u1ec5m\t s\u1eafc\t th\u1ec3\t X\t v\u00e0\t 1\t l\u00e0\t Y.\t N\u1eef\t c\u00f3\t 2\t nhi\u1ec5m\t s\u1eafc\t th\u1ec3\t gi\u1edbi\t t\u00ednh\t X.\t ATP (adenozin\t triphotphat)\t C10H16N5O12P3:\t co-enzim,\t l\u00e0\t h\u1ee3p\t ch\u1ea5t\t cao\t n\u0103ng l\u01b0\u1ee3ng\tc\u1ee7a\tt\u1ebf\tb\u00e0o\tB\u00e2y\tgi\u1edd\tRAM\tc\u1ee1\t1\tGB\tl\u00e0\tb\u00ecnh\tth\u01b0\u1eddng\t(btv).\tHi\u1ec7n\tnay\t\u0111ang d\u00f9ng\t lo\u1ea1i\t pin\t Li-ion\t kh\u00f4ng\t n\u1ea1p\t \u0111\u1ec3\t c\u1ea5p\t ngu\u1ed3n\t cho\t CMOS.\t C\u00e1c\t lo\u1ea1i\t pin\t (\u1eafc quy)\t Ni-Cd\t \u0111\u01b0\u1ee3c\t khuy\u1ebfn\t c\u00e1o\t g\u00e2y\t \u0111\u1ed9c\t h\u1ea1i\t kh\u00f4ng\t s\u1eed\t d\u1ee5ng\t n\u1eefa\t (Btv).\t M\u1ea1ng trung\tk\u1ebf:\tM\u1ea1ng\tti\u1ebfp\ts\u1ee9c,\tchuy\u1ec3n\tti\u1ebfp\ts\u00f3ng\t(Relay).\t\u201cK\u1ebf\u201d\t\u1edf\t\u0111\u00e2y\tl\u00e0\tk\u1ebf\tt\u1ee5c,\tt\u1eeb H\u00e1n\t n\u00e0y\t hi\u1ec7n\t nay\t \u1edf\t Vi\u1ec7t\t Nam\t \u00edt\t d\u00f9ng,\t n\u00f3\t ch\u1ec9\t c\u00f2n\t l\u01b0u\t h\u00e0nh\t trong\t nh\u1eefng ng\u01b0\u1eddi\tl\u1edbn\ttu\u1ed5i\tng\u00e0nh\tb\u01b0u\t\u0111i\u1ec7n.\tL\u1ea7u\tQuan\tT\u01b0\u1edbc:\tNh\u00e0\tl\u1ea7u\tc\u1ea1nh\tba\tt\u1ea7ng\t\u1edf\tph\u00eda T\u00e2y\tNam\thuy\u1ec7n\tV\u0129nh\tT\u1ed1,\tt\u1ec9nh\tS\u01a1n\tT\u00e2y,\tTrung\tQu\u1ed1c\tB\u00e0n\tth\u1ea5t\tx\u1ea3o:b\u00e0n\tc\u00f3\t7 \u0111i\u1ec3m\t tinh\t x\u1ea3o\t Ma\t tr\u1eadn\t c\u00f2n\t \u0111\u01b0\u1ee3c\t g\u1ecdi\t l\u00e0\t ma\t tr\u1eadn\t vu\u00f4ng\t S\u00e9t\t hay\t ch\u1edbp\t l\u00e0\t hi\u1ec7n t\u01b0\u1ee3ng\tph\u00f3ng\t\u0111i\u1ec7n\tgi\u1eefa\tc\u00e1c\t\u0111\u00e1m\tm\u00e2y\tho\u1eb7c\tgi\u1eefa\tm\u00e2y\tv\u00e0\tm\u1eb7t\t\u0111\u1ea5t.\tTrong\tti\u1ebfng Vi\u1ec7t\tc\u00f3\tch\u1ed7\tph\u1ea3i\td\u00f9ng\ts\u00e9t\tnh\u01b0\t\u201cs\u00e9t\t\u0111\u00e1nh\u201d,\t\u201cs\u00e9t\tc\u1ea7u\u201d...,\tc\u00f3\tch\u1ed7\tph\u1ea3i\td\u00f9ng\tch\u1edbp nh\u01b0\t \u201cm\u01b0a\t gi\u00f4ng\t ch\u1edbp\t gi\u1eadt\u201d...\t Ba:\t ch\u1ec9\t Ba\t Th\u1ee5c,\t l\u00e0\t t\u00ean\t g\u1ecdi\t c\u1ee7a\t t\u1ec9nh\t Tr\u00f9ng Kh\u00e1nh,\tT\u1ee9\tXuy\u00ean\ttr\u01b0\u1edbc\tkia\tN\u01b0\u1edbc\tta\tc\u00f3\tgi\u00e0n\t\u0111\u00e0n\t\u0111\u00e1\t\u0111\u01b0\u1ee3c\tph\u00e1t\thi\u1ec7n\tt\u1ea1i\thuy\u1ec7n Kh\u00e1nh\tS\u01a1n,\tt\u1ec9nh\tKh\u00e1nh\tHo\u00e0\tc\u0169ng\tl\u00e0\tm\u1ed9t\tnh\u1ea1c\tc\u1ee5\tc\u1ed5\tx\u01b0a\tqu\u00fd\thi\u1ebfm,\tt\u01b0\u01a1ng\tt\u1ef1 nh\u01b0\tgi\u00e0n\t\u0111\u00e0n\tchu\u00f4ng\tn\u00f3i\ttr\u00ean\tc\u1ee7a\tTrung\tQu\u1ed1c\t(Ch\u00fa\tth\u00edch\tc\u1ee7a\tND).\tT\u1ed1c\t\u0111\u1ed9 truy\u1ec1n\t\u00e2m\ttrong\tkh\u00f4ng\tkh\u00ed\tkho\u1ea3ng\t331\tm\/s\t\u1edf\t\u0111i\u1ec1u\tki\u1ec7n\tnhi\u1ec7t\t\u0111\u1ed9\t0\u00b0C,\t\u0111\u1ed9\tcao tr\u00ean\t m\u1ef1c\t n\u01b0\u1edbc\t bi\u1ec3n.\t \u00c2m\t thanh\t v\u00f2ng\t (\u00e2m\t thanh\t v\u00f2m)\t t\u1ea1o\t cho\t ng\u01b0\u1eddi\t nghe c\u1ea3m\tnh\u1eadn\tr\u00f5\tr\u1ec7t\tv\u1ec1\t\u00e2m\tthanh\t3\tchi\u1ec1u\tc\u00f3\tchuy\u1ec3n\t\u0111\u1ed9ng\tv\u00f2ng. https:\/\/thuviensach.vn","Table\tof\tContents L\u1edcI\tNH\u00c0\tXU\u1ea4T\tB\u1ea2N 1.\tV\u00ec\tsao\ts\u1ee9c\tn\u1eb7ng\tc\u1ee7a\tv\u1eadt\tth\u1ec3\tc\u00f3\tth\u1ec3\tbi\u1ebfn\t\u0111\u1ed5i? 2.\tM\u1ed9t\tm\u00e9t\td\u00e0i\tbao\tnhi\u00eau? 3.\tV\u00ec\tsao\tc\u00e1c\t\u0111\u01b0\u1eddng\t\u00f4\tt\u00f4\tl\u00ean\tn\u00fai\t\u0111\u1ec1u\tquanh\tco\tu\u1ed1n\tkh\u00fac? 4.\tV\u00ec\tsao\tc\u00e1i\tkim\td\u1ec5\txuy\u00ean\tv\u00e0o\tv\u1eadt\tkh\u00e1c? 5.\tV\u00ec\tsao\td\u00f9ng\t\u1ed1ng\th\u00fat\tc\u00f3\tth\u1ec3\th\u00fat\t\u0111\u01b0\u1ee3c\tn\u01b0\u1edbc\tgi\u1ea3i\tkh\u00e1t\t? 6.\tV\u00ec\tsao\tb\u00fat\tm\u00e1y\tc\u00f3\tth\u1ec3\tt\u1ef1\tch\u1ea3y\tm\u1ef1c\tra? 7.\tV\u00ec\tsao\tth\u00e1p\tn\u01b0\u1edbc\tph\u1ea3i\tx\u00e2y\tth\u1eadt\tcao? 8.\tV\u00ec\tsao\tcon\tl\u1eadt\t\u0111\u1eadt\tkh\u00f4ng\tb\u1ecb\t\u0111\u1ed5\tnh\u00e0o? 9.\tV\u00ec\tsao\tkh\u00f4ng\tnh\u00fan\tch\u00e2n\tth\u00ec\tkh\u00f4ng\tnh\u1ea3y\t\u0111\u01b0\u1ee3c? 10.\tV\u00ec\tsao\tkhi\t\u0111i\ttr\u00ean\td\u00e2y\tth\u00e9p\tph\u1ea3i\t\u0111ung\t\u0111\u01b0a\thai\tc\u00e1nh\ttay? 11.\tV\u00ec\tsao\ttr\u00ean\tn\u00fai\tcao\tn\u1ea5u\tc\u01a1m\tkh\u00f4ng\tch\u00edn? 12.\tCon\tng\u01b0\u1eddi\tl\u1eb7n\txu\u1ed1ng\tbi\u1ec3n\ts\u00e2u,\tth\u00e2n\tm\u00ecnh\tc\u00f3\tb\u1ecb\t\u00e9p\tb\u1eb9p\tkh\u00f4ng? 13.\tV\u00ec\tsao\tcon\tm\u1eaft\tc\u1ee7a\tk\u0129\ts\u01b0\tc\u00f3\tth\u1ec3\t\\\"nh\u00ecn\tth\u1ea5y\\\"\t\u1ee9ng\tsu\u1ea5t\tb\u00ean\ttrong\tv\u1eadt li\u1ec7u? 14.\tV\u00ec\tsao\tdi\u1ec5n\tvi\u00ean\txi\u1ebfc\tc\u00f3\tth\u1ec3\td\u00f9ng\t\u0111\u1ea7u\t\u0111\u1ee1\tl\u1ea5y\tc\u00e1i\tv\u00f2\tt\u1eeb\ttr\u00ean\tcao\tr\u01a1i xu\u1ed1ng? 15.\tTrong\tt\u00e0u\tho\u1ea3\t\u0111ang\tch\u1ea1y\tv\u1edbi\tt\u1ed1c\t\u0111\u1ed9\tcao,\tv\u00ec\tsao\tkhi\tnh\u1ea3y\tl\u00ean\tv\u1eabn\tr\u01a1i l\u1ea1i\tch\u1ed7\tc\u0169? 16.\tV\u00ec\tsao\t\u0111i\txe\t\u0111\u1ea1p\ttr\u00ean\t\u0111\u1ea5t\ts\u00e9t\tnh\u00e3o\tr\u1ea5t\tt\u1ed1n\ts\u1ee9c? 17.\tV\u00ec\tsao\tthi\tk\u00e9o\tco\tkh\u00f4ng\tph\u1ea3i\tch\u1ec9\tso\tv\u1ec1\ts\u1ee9c\tl\u1ef1c? 18.\tV\u00ec\tsao\t\u0111i\tgi\u00e0y\ttr\u01b0\u1ee3t\tb\u0103ng\tc\u00f3\tth\u1ec3\ttr\u01b0\u1ee3t\ttho\u1ea3i\tm\u00e1i\ttr\u00ean\tb\u0103ng\t? 19.\tV\u00ec\tsao\t\u1edf\tm\u1ed9t\ts\u1ed1\t\u0111\u1ecba\tph\u01b0\u01a1ng,\tng\u01b0\u1eddi\tta\tth\u00edch\t\u0111\u1ed9i\tv\u1eadt\tn\u1eb7ng\tl\u00ean\t\u0111\u1ea7u? 20.\tV\u00ec\tsao\tg\u0103ng\ttay,\tt\u1ea5t\tch\u00e2n\tb\u1ecb\t\u1ea9m\tr\u1ea5t\tkh\u00f3\tth\u00e1o\tra? 21.\tV\u00ec\tsao\tnh\u1eefng\th\u1ea1t\tn\u01b0\u1edbc\ttr\u00ean\tl\u00e1\tsen\t\u0111\u1ec1u\tl\u00e0\tnh\u1eefng\tgi\u1ecdt\tn\u01b0\u1edbc\tnh\u1ecf\ttr\u00f2n vo? 22.\tV\u00ec\tsao\tm\u00e0u\ts\u1eafc\tc\u1ee7a\thai\tm\u1eb7t\tv\u1ee3t\tb\u00f3ng\tb\u00e0n\tl\u1ea1i\tkh\u00e1c\tnhau? 23.\tKhi\tn\u00e9m\t\u0111\u0129a\ts\u1eaft,\tv\u00ec\tsao\tv\u1eadn\t\u0111\u1ed9ng\tvi\u00ean\tph\u1ea3i\txoay\tng\u01b0\u1eddi? 24.\tV\u00ec\tsao\ttrong\tn\u00f2ng\ts\u00fang,\tn\u00f2ng\tph\u00e1o\tc\u00f3\t\u0111\u01b0\u1eddng\txo\u1eafn\t\u1ed1c\tv\u00f2ng\tv\u00f2ng? 25.\tV\u00ec\tsao\tv\u1eadn\t\u0111\u1ed9ng\tvi\u00ean\tb\u00f3ng\tchuy\u1ec1n\tph\u1ea3i\tnh\u00e0o\tl\u0103n\t\u0111\u1ec3\tc\u1ee9u\tb\u00f3ng? 26.\tV\u00ec\tsao\ttrong\t\\\"\u0111\u01b0\u1eddng\tb\u00f3ng\tqu\u1ea3\tchu\u1ed1i\\\",\tb\u00f3ng\tc\u00f3\tth\u1ec3\tbay\ttheo\t\u0111\u01b0\u1eddng v\u00f2ng\tcung? 27.\tV\u00ec\tsao\tc\u00e1i\ty\u00f4\ty\u00f4\tc\u00f3\tth\u1ec3\tt\u1ef1\t\u0111\u1ed9ng\tquay\tv\u1ec1\tl\u00f2ng\tb\u00e0n\ttay? 28.\tV\u00ec\tsao\tkhi\tb\u1ecb\tng\u00e3\tt\u1eeb\ttr\u00ean\tcao,\tm\u00e8o\tv\u1eabn\tb\u00ecnh\ty\u00ean\tr\u01a1i\txu\u1ed1ng\t\u0111\u1ea5t? 29.\tV\u00ec\tsao\tt\u00e0u\tthu\u1ef7\tbao\tgi\u1edd\tc\u0169ng\tc\u1eadp\tb\u1ebfn\tng\u01b0\u1ee3c\td\u00f2ng? 30.\tV\u00ec\tsao\thai\tt\u00e0u\tthu\u1ef7\tl\u1edbn\tch\u1ea1y\tsong\tsong\tc\u00f9ng\tchi\u1ec1u\tv\u1edbi\tt\u1ed1c\t\u0111\u1ed9\tcao\ts\u1ebd https:\/\/thuviensach.vn","\u0111\u00e2m\tv\u00e0o\tnhau? 31.\tV\u00ec\tsao\tb\u1ee5i\t\u1edf\tph\u00eda\tsau\t\u00f4\tt\u00f4\t\u0111\u1eb7c\tbi\u1ec7t\tnhi\u1ec1u? 32.\tV\u00ec\tsao\tn\u01b0\u1edbc\tc\u0169ng\tc\u00f3\tth\u1ec3\t\\\"ch\u1eb7t\ts\u1eaft\tnh\u01b0\tb\u00f9n\\\"? 33.\t V\u00ec\t sao\t v\u1eadn\t \u0111\u1ed9ng\t vi\u00ean\t l\u01b0\u1edbt\t v\u00e1n\t \u0111\u1ee9ng\t tr\u00ean\t m\u1eb7t\t n\u01b0\u1edbc\t m\u00e0\t kh\u00f4ng\t b\u1ecb ch\u00ecm? 34.\tV\u00ec\tsao\ttrong\t\u0111i\u1ec1u\tki\u1ec7n\tng\u01b0\u1ee3c\tgi\u00f3\tthuy\u1ec1n\tbu\u1ed3m\tv\u1eabn\tc\u00f3\tth\u1ec3\tch\u1ea1y\tt\u1edbi \u0111\u01b0\u1ee3c? 35.\tV\u00ec\tsao\tdi\u1ec1u\tc\u00f3\tth\u1ec3\tbay\tl\u00ean\ttr\u1eddi\txanh? 36.\tV\u00ec\tsao\t\u1ed1ng\tkh\u00f3i\tc\u00f3\tth\u1ec3\tth\u1ea3i\tkh\u00f3i\tra? 37.\tV\u00ec\tsao\tn\u01b0\u1edbc\tga\tc\u00f3\tth\u1ec3\ts\u1ee7i\tb\u1ecdt? 38.\tV\u00ec\tsao\ttrong\t\u1ed1ng\tch\u1ee9a\tn\u01b0\u1edbc\tm\u00e1y\tc\u00f3\tl\u00fac\tl\u1ea1i\tph\u00e1t\tra\tti\u1ebfng\tk\u00eau\t\u00f2ng\t\u1ecdc? 39.\tGi\u00f3\tl\u1ea7u\tcao\tl\u00e0\tg\u00ec? 40.\t V\u00ec\t sao\t d\u00f2ng\t n\u01b0\u1edbc\t ch\u1ed7\t l\u1ed7\t x\u1ea3\t c\u1ee7a\t b\u1ec3\t n\u01b0\u1edbc\t bao\t gi\u1edd\t c\u0169ng\t xo\u00e1y\t theo m\u1ed9t\th\u01b0\u1edbng? 41.\t V\u00ec\t sao\t n\u00e9m\t vi\u00ean\t \u0111\u00e1\t xu\u1ed1ng\t n\u01b0\u1edbc,\t m\u1eb7t\t n\u01b0\u1edbc\t l\u1ea1i\t c\u00f3\t g\u1ee3n\t s\u00f3ng\t t\u1eebng v\u00f2ng\tt\u1eebng\tv\u00f2ng? 42.\t V\u00ec\t sao\t v\u00e0o\t ban\t \u0111\u00eam\t v\u00e0\t s\u00e1ng\t s\u1edbm,\t nghe\t r\u00f5\t ti\u1ebfng\t chu\u00f4ng\t h\u01a1n\t ban ng\u00e0y? 43.\t V\u00ec\t sao\t v\u1eadn\t \u0111\u1ed9ng\t vi\u00ean\t leo\t n\u00fai\t khi\t leo\t l\u00ean\t n\u00fai\t cao\t kh\u00f4ng\t \u0111\u01b0\u1ee3c\t c\u1ea5t ti\u1ebfng\tg\u1ecdi\tto? 44.\tV\u00ec\tsao\tv\u1eadt\tn\u1ed5i\ttr\u00ean\tm\u1eb7t\tn\u01b0\u1edbc\tkh\u00f4ng\ttr\u00f4i\tra\tngo\u00e0i\ttheo\ts\u00f3ng\tn\u01b0\u1edbc? 45.\tV\u00ec\tsao\tm\u1ed9t\t\u0111\u1ed9i\tqu\u00e2n\tkh\u00f4ng\tth\u1ec3\tr\u1eadp\t\u0111\u1ec1u\tb\u01b0\u1edbc\tch\u00e2n\t\u0111i\tqua\tc\u1ea7u? 46.\tV\u00ec\tsao\tc\u00e1t\tc\u00f3\tth\u1ec3\ts\u1eafp\tx\u1ebfp\tth\u00e0nh\tnh\u1eefng\t\u0111\u1ed3\t\u00e1n\t\u0111\u1eb9p\t\u0111\u1ebd? 47.\t V\u00ec\t sao\t khi\t k\u1ec1\t tai\t g\u1ea7n\t mi\u1ec7ng\t ph\u00edch\t kh\u00f4ng\t \u0111\u1ef1ng\t n\u01b0\u1edbc\t l\u1ea1i\t nghe\t th\u1ea5y ti\u1ebfng\to\to? 48.\tV\u00ec\tsao\tc\u00e1\t\u0111\u00fac\t\u1edf\t\u0111\u00e1y\tch\u1eadu\tl\u1ea1i\tphun\tn\u01b0\u1edbc? 49.\tV\u00ec\tsao\tsu\u1ed1i\tnh\u1ecf\tl\u1ea1i\tk\u00eau\tr\u00f3c\tr\u00e1ch? 50.\tVi\u00ean\t\u0111\u1ea1n\tv\u00e0\tti\u1ebfng\tn\u1ed5\tc\u00e1i\tn\u00e0o\tchuy\u1ec3n\t\u0111\u1ed9ng\tnhanh\th\u01a1n? 51.\t V\u00ec\t sao\t t\u1ed1c\t \u0111\u1ed9\t truy\u1ec1n\t c\u1ee7a\t \u00e2m\t thanh\t trong\t n\u01b0\u1edbc\t l\u1ea1i\t nhanh\t h\u01a1n\t trong kh\u00f4ng\tkh\u00ed? 52.\tV\u00ec\tsao\t\u0111i\tb\u1ed9\ttrong\tng\u00f5\tnh\u1ecf\tban\t\u0111\u00eam\tl\u1ea1i\tph\u00e1t\tra\tti\u1ebfng\tv\u1ecdng? 53.\tV\u00ec\tsao\tt\u01b0\u1eddng\th\u1ed3i\t\u00e2m\tc\u00f3\tth\u1ec3\ttruy\u1ec1n\t\u00e2m\tthanh? 54.\tV\u00ec\tsao\ttrong\tkh\u00f4ng\tkh\u00ed\tl\u1ea1i\tsinh\tra\ts\u00f3ng\txung\tk\u00edch\tl\u1edbn? 55.\tS\u00f3ng\tsi\u00eau\t\u00e2m\tl\u00e0\tg\u00ec? 56.\tV\u00ec\tsao\ts\u00f3ng\tsi\u00eau\t\u00e2m\tc\u00f3\tth\u1ec3\tr\u1eeda\ts\u1ea1ch\tc\u00e1c\tlinh\tki\u1ec7n\ttinh\tvi? 57.\tAi\td\u1ef1\tb\u00e1o\tgi\u00f3\tb\u00e3o\ttr\u00ean\tbi\u1ec3n? 58.\tV\u00ec\tsao\tkhi\tbay\tv\u1edbi\tt\u1ed1c\t\u0111\u1ed9\tsi\u00eau\tthanh,\tm\u00e1y\tbay\tl\u1ea1i\tph\u00e1t\tra\tti\u1ebfng\tn\u1ed5\tto nh\u01b0\ts\u1ea5m? 59.\tV\u00ec\tsao\ts\u00f3ng\th\u1ea1\t\u00e2m\tl\u1ea1i\t\u1ea3nh\th\u01b0\u1edfng\t\u0111\u1ebfn\ts\u1ee9c\tkho\u1ebb\tcon\tng\u01b0\u1eddi? https:\/\/thuviensach.vn","60.\tV\u00ec\tsao\tkhi\txe\tl\u1eeda\tch\u1ea1y\tt\u1edbi\tg\u1ea7n,\tti\u1ebfng\tc\u00f2i\tnghe\tr\u00edt\tch\u00f3i,\tc\u00f2n\tkhi\tch\u1ea1y xa\tra\tth\u00ec\tbi\u1ebfn\tth\u00e0nh\tti\u1ebfng\ttr\u1ea7m\tkh\u00e0n? 61.\tV\u00ec\tsao\t\u00e1p\ttai\tl\u00ean\t\u0111\u01b0\u1eddng\tray\tc\u00f3\tth\u1ec3\tnghe\tti\u1ebfng\txe\tl\u1eeda\t\u1edf\tr\u1ea5t\txa? 62.\tV\u00ec\tsao\tc\u00e2y\ts\u00e1o\tc\u00f3\tth\u1ec3\tth\u1ed5i\tra\tb\u1ea3n\tnh\u1ea1c? 63.\t B\u1ea1n\t c\u00f3\t th\u1ec3\t d\u00f9ng\t c\u1ed1c\t n\u01b0\u1edbc\t l\u00e0m\t m\u1ed9t\t gi\u00e0n\t \u0111\u00e0n\t chu\u00f4ng\t m\u00f4\t ph\u1ecfng kh\u00f4ng? 64.\tV\u00ec\tsao\thi\u1ec7u\tqu\u1ea3\t\u00e2m\th\u01b0\u1edfng\tc\u1ee7a\tnh\u00e0\th\u00e1t\tl\u1edbn\tTh\u01b0\u1ee3ng\tH\u1ea3i\t\u0111\u1eb7c\tbi\u1ec7t\tt\u1ed1t? 65.\tThang\tnhi\u1ec7t\t\u0111\u1ed9\t\u0111\u01b0\u1ee3c\tx\u00e1c\t\u0111\u1ecbnh\tnh\u01b0\tth\u1ebf\tn\u00e0o? 66.\tV\u00ec\tsao\tnhi\u1ec7t\tk\u1ebf\tc\u00f3\tlo\u1ea1i\tch\u1ee9a\tr\u01b0\u1ee3u,\tc\u00f3\tlo\u1ea1i\tch\u1ee9a\tthu\u1ef7\tng\u00e2n? 67.\t V\u00ec\t sao\t c\u1ed9t\t thu\u1ef7\t ng\u00e2n\t trong\t c\u1eb7p\t nhi\u1ec7t\t \u0111\u1ed9\t cho\t ng\u01b0\u1eddi\t kh\u00f4ng\t th\u1ec3\t t\u1ef1 \u0111\u1ed9ng\th\u1ea1\txu\u1ed1ng? 68.\tKh\u00f4ng\t\u0111\u1ed9\tCelsius\tv\u00e0\tkh\u00f4ng\t\u0111\u1ed9\ttuy\u1ec7t\t\u0111\u1ed1i\tl\u00e0\tg\u00ec? 69.\tV\u00ec\tsao\tn\u01b0\u1edbc\tng\u1ea7m\t\u1ea5m\tv\u00e0o\tm\u00f9a\t\u0111\u00f4ng,\tm\u00e1t\tv\u00e0o\tm\u00f9a\th\u00e8? 70.\tM\u00f9a\th\u00e8,\tv\u00ec\tsao\txe\t\u0111\u1ea1p\td\u1ec5\tn\u1ed5\tl\u1ed1p? 71.\tV\u00ec\tsao\tv\u1eb1n\tth\u1eafn\tn\u1ea5u\tch\u00edn\tr\u1ed3i\tl\u1ea1i\tn\u1ed5i\tl\u00ean? 72.\tV\u00ec\tsao\tch\u00e1o\ts\u00f4i\tl\u1ea1i\ttr\u00e0o\tra? 73.\tV\u00ec\tsao\tkhi\tlu\u1ed9c\tch\u00edn\ttr\u1ee9ng,\tng\u00e2m\tv\u00e0o\tn\u01b0\u1edbc\tl\u1ea1nh\tth\u00ec\td\u1ec5\tb\u00f3c\tv\u1ecf\th\u01a1n? 74.\tV\u00ec\tsao\th\u1ea1t\tng\u00f4\tc\u1ee9ng\tch\u1eafc\tc\u00f3\tth\u1ec3\tbi\u1ebfn\tth\u00e0nh\tb\u1ecfng\tng\u00f4\tx\u1ed1p\tgi\u00f2n? 75.\tV\u00ec\tsao\tkhi\tqu\u1ea1t\tm\u00e1y\tch\u1ea1y\tho\u1eb7c\tqu\u1ea1t\tb\u1eb1ng\ttay\tl\u1ea1i\tc\u1ea3m\tth\u1ea5y\tm\u00e1t\tm\u1ebb? 76.\tM\u00f9a\t\u0111\u00f4ng\tv\u00ec\tsao\ts\u1edd\tv\u00e0o\ts\u1eaft\tl\u1ea1nh\th\u01a1n\tg\u1ed7? 77.\tV\u00ec\tsao\t\u00e1o\tl\u00f4ng\tgi\u1eef\t\u1ea5m\t\u0111\u1eb7c\tbi\u1ec7t\tt\u1ed1t? 78.\tV\u00ec\tsao\ttr\u00ean\tc\u1eeda\ts\u1ed5\tt\u00e0u\tho\u1ea3\tph\u1ea3i\tl\u1eafp\thai\tl\u1edbp\tk\u00ednh? 79.\tV\u00ec\tsao\t\u0111\u00e8n\tk\u00e9o\tqu\u00e2n\tc\u00f3\tth\u1ec3\txoay\ttr\u00f2n? 80.\tV\u00ec\tsao\tng\u1ecdn\tl\u1eeda\tbao\tgi\u1edd\tc\u0169ng\th\u01b0\u1edbng\tl\u00ean? 81.\tV\u00ec\tsao\tph\u00edch\tn\u01b0\u1edbc\tn\u00f3ng\tgi\u1eef\t\u0111\u01b0\u1ee3c\tnhi\u1ec7t? 82.\tV\u00ec\tsao\tkhi\tm\u1ee1\tb\u1ed1c\tch\u00e1y\tkh\u00f4ng\t\u0111\u01b0\u1ee3c\td\u00f9ng\tn\u01b0\u1edbc\t\u0111\u1ec3\td\u1eadp\tt\u1eaft? 83.\tV\u00ec\tsao\tn\u01b0\u1edbc\tr\u01a1i\tv\u00e0o\tch\u1ea3o\tm\u1ee1\tl\u1ea1i\tph\u00e1t\tra\tti\u1ebfng\t\u201cl\u00e9p\tb\u00e9p\u201d\t? 84.\tM\u00f9a\t\u0111\u00f4ng,\tv\u00ec\tsao\th\u01a1i\ttrong\tmi\u1ec7ng\tth\u1edf\tra\tc\u00f3\tm\u00e0u\ttr\u1eafng? 85.\tNh\u1eefng\tc\u1ed9t\tb\u0103ng\td\u01b0\u1edbi\tm\u00e1i\thi\u00ean\th\u00ecnh\tth\u00e0nh\tnh\u01b0\tth\u1ebf\tn\u00e0o? 86.\tV\u00ec\tsao\tb\u0103ng\tbao\tgi\u1edd\tc\u0169ng\t\u0111\u00f3ng\ttr\u00ean\tm\u1eb7t\tn\u01b0\u1edbc? 87.\tV\u00ec\tsao\tn\u00f3i\tb\u0103ng\tkh\u00f4\tkh\u00f4ng\tph\u1ea3i\tl\u00e0\tb\u0103ng\tth\u00f4ng\tth\u01b0\u1eddng? 88.\tV\u00ec\tsao\tqu\u1ea3\tc\u1ea7u\ttuy\u1ebft\tc\u00e0ng\tl\u0103n\tc\u00e0ng\tl\u1edbn? 89.\tV\u00ec\tsao\ttuy\u1ebft\tb\u1ea9n\ttan\tch\u1ea3y\ttr\u01b0\u1edbc\ttuy\u1ebft\ts\u1ea1ch? 90.\tV\u00ec\tsao\td\u00f9ng\tn\u1ed3i\t\u00e1p\tsu\u1ea5t\td\u1ec5\tn\u1ea5u\tch\u00edn\tth\u1ee9c\t\u0103n? 91.\tV\u00ec\tsao\ttr\u00ean\tk\u00ednh\tc\u1eeda\ts\u1ed5\tl\u1ea1i\t\u0111\u00f3ng\thoa\tb\u0103ng\t\u0111\u1eb9p\t\u0111\u1ebd? 92.\tV\u00ec\tsao\tkhi\tbay,\t\u0111\u1eb1ng\tsau\tm\u00e1y\tbay\tl\u1ea1i\tk\u00e9o\ttheo\tm\u1ed9t\td\u1ea3i\tkh\u00f3i\ttr\u1eafng? 93.\tV\u00ec\tsao\tkh\u00f4ng\tth\u1ec3\tch\u1ebf\tt\u1ea1o\tra\t\u0111\u1ed9ng\tc\u01a1\tv\u0129nh\tc\u1eedu? 94.\tV\u00ec\tsao\tm\u1ed9t\tgi\u1ecdt\tm\u1ef1c\tsau\tkhi\tkhu\u1ebfch\tt\u00e1n\t\u1edf\ttrong\tn\u01b0\u1edbc\ts\u1ebd\tkh\u00f4ng\tth\u1ec3 t\u1ef1\t\u0111\u1ed9ng\tt\u1ee5\tl\u1ea1i? https:\/\/thuviensach.vn","95.\tV\u00ec\tsao\tkhi\tc\u1edfi\t\u00e1o\tlen\tl\u1ea1i\tnghe\tc\u00f3\tti\u1ebfng\t\\\"l\u1eb9t\tr\u1eb9t\\\"? 96.\tS\u00e9t\th\u00ecnh\tth\u00e0nh\tnh\u01b0\tth\u1ebf\tn\u00e0o? 97.\tV\u00ec\tsao\ttr\u00ean\tc\u00e1c\tto\u00e0\tki\u1ebfn\ttr\u00fac\tl\u1edbn\tph\u1ea3i\tl\u1eafp\tc\u1ed9t\tthu\tl\u00f4i? 98.\tV\u00ec\tsao\tnam\tch\u00e2m\th\u00fat\t\u0111\u01b0\u1ee3c\ts\u1eaft? 99.\tV\u00ec\tsao\tnam\tch\u00e2m\tnung\t\u0111\u1ecf\tkh\u00f4ng\th\u00fat\t\u0111\u01b0\u1ee3c\ts\u1eaft? 100.\t\u0110i\u1ec7n\tt\u1eeb\t\u0111\u00e2u\t\u0111\u1ebfn\tv\u1eady? 101.\tV\u00ec\tsao\tchim\t\u0111\u1eadu\ttr\u00ean\td\u00e2y\t\u0111i\u1ec7n\tm\u00e0\tkh\u00f4ng\tb\u1ecb\t\u0111i\u1ec7n\tgi\u1eadt? 102.\tT\u1ea1i\tsao\tc\u1ea7u\tch\u00ec\tc\u00f3\tt\u00e1c\td\u1ee5ng\tb\u1ea3o\tv\u1ec7? 103.\tT\u1ea1i\tsao\ttr\u01b0\u1edbc\tkhi\t\u0111\u00e8n\tn\u00ea\t\u00f4ng\tb\u1eadt\ts\u00e1ng,\tc\u00e1i\tt\u1eafc\tte\tph\u1ea3i\tch\u1edbp\tnh\u00e1y\tv\u00e0i l\u1ea7n? 104.\tV\u00ec\tsao\t\u0111\u00e8n\t\u1ed1ng\tti\u1ebft\tki\u1ec7m\t\u0111i\u1ec7n\th\u01a1n\tb\u00f3ng\t\u0111\u00e8n\td\u00e2y\tt\u00f3c? 105.\tV\u00ec\tsao\t\u0111\u00e8n\ti\u00f4t\t-\tvonfram\tc\u00f3\tth\u1ec3\tt\u00edch\tnh\u1ecf,\t\u0111\u1ed9\tch\u00f3i\tcao,\ttu\u1ed5i\tth\u1ecd\td\u00e0i? 106.\tV\u00ec\tsao\tm\u00e1y\tbi\u1ebfn\t\u00e1p\tc\u00f3\tth\u1ec3\tbi\u1ebfn\t\u0111\u1ed5i\t\u0111i\u1ec7n\t\u00e1p? 107.\tR\u00f2\t\u0111i\u1ec7n\tl\u00e0\tg\u00ec? 108.\t V\u00ec\t sao\t truy\u1ec1n\t t\u1ea3i\t \u0111i\u1ec7n\t \u0111\u01b0\u1eddng\t d\u00e0i\t ph\u1ea3i\t \u00e1p\t d\u1ee5ng\t c\u00e1ch\t truy\u1ec1n\t b\u1eb1ng \u0111i\u1ec7n\t\u00e1p\tsi\u00eau\tcao? 109.\tPh\u00e1t\t\u0111i\u1ec7n\tt\u1eeb\tthu\u1ef7\t\u0111\u1ed9ng\tl\u00e0\tg\u00ec? 110.\tV\u00ec\tsao\tc\u00e1\tch\u00ecnh\t\u0111i\u1ec7n\tc\u00f3\tth\u1ec3\tsinh\tra\t\u0111i\u1ec7n? 111.\t\u0110\u1ed3ng\th\u1ed3\tth\u1ea1ch\tanh\tt\u00ednh\tgi\u1edd\tnh\u01b0\tth\u1ebf\tn\u00e0o? 112.\tV\u00ec\tsao\t\u0111\u00e8n\tti\u1ebft\tki\u1ec7m\t\u0111i\u1ec7n\tl\u1ea1i\tc\u00f3\tth\u1ec3\tti\u1ebft\tki\u1ec7m\t\u0111\u01b0\u1ee3c\t\u0111i\u1ec7n? 113.\tS\u00f3ng\t\u00e1nh\ts\u00e1ng\tv\u00e0\ts\u00f3ng\t\u0111i\u1ec7n\ts\u00f3ng\tn\u00e0o\tnhanh\th\u01a1n? 114.\tT\u1ed1c\t\u0111\u1ed9\ttruy\u1ec1n\tc\u1ee7a\t\u0111i\u1ec7n\tl\u00e0\tg\u00ec? 115.\tV\u00ec\tsao\tn\u00f3i\tb\u1ee9c\tx\u1ea1\t\u0111i\u1ec7n\tt\u1eeb\tc\u0169ng\tl\u00e0\tm\u1ed9t\tlo\u1ea1i\t\u00f4\tnhi\u1ec5m\tm\u00f4i\ttr\u01b0\u1eddng? 116.\tCh\u1ea5t\tb\u00e1n\td\u1eabn\tl\u00e0\tg\u00ec? 117.\t V\u00ec\t sao\t c\u00e1c\t c\u00f4ng\t \u0111o\u1ea1n\t s\u1ea3n\t xu\u1ea5t\t c\u1ee7a\t m\u1ed9t\t s\u1ed1\t linh\t ki\u1ec7n\t b\u00e1n\t d\u1eabn\t ph\u1ea3i l\u00e0m\ttrong\tch\u00e2n\tkh\u00f4ng? 118.\tM\u1ea1ch\tt\u00edch\th\u1ee3p\tl\u00e0\tg\u00ec? 119.\tV\u00ec\tsao\ts\u1ea3n\txu\u1ea5t\tm\u1ea1ch\tt\u00edch\th\u1ee3p\tph\u1ea3i\tc\u1ea7n\t\u0111\u1ebfn\tm\u00f4i\ttr\u01b0\u1eddng\tsi\u00eau\ts\u1ea1ch? 120.\tK\u0129\tthu\u1eadt\tvi\t\u0111i\u1ec7n\tt\u1eed\tl\u00e0\tg\u00ec? 121.\tV\u00ec\tsao\tb\u00f3ng\tquang\t\u0111i\u1ec7n\tc\u00f3\tth\u1ec3\tthay\tth\u1ecb\tgi\u00e1c\tc\u1ee7a\tm\u1eaft? 122.\tV\u00ec\tsao\t\u0103c\tquy\tc\u00f3\tth\u1ec3\tn\u1ea1p\t\u0111i\tn\u1ea1p\tl\u1ea1i\t\u0111\u01b0\u1ee3c? 123.\tV\u00ec\tsao\tgi\u00e0y\tda\tb\u00f4i\txi\tv\u00e0o\tc\u00e0ng\tlau\tc\u00e0ng\tb\u00f3ng? 124.\tV\u00ec\tsao\ttr\u1ea7n\tnh\u00e0\tth\u01b0\u1eddng\ts\u01a1n\tm\u00e0u\ttr\u1eafng,\tc\u00f2n\tb\u1ed1n\tb\u1ee9c\tv\u00e1ch\tt\u1ed1t\tnh\u1ea5t\tl\u00e0 s\u01a1n\tm\u00e0u\tkh\u00e1c? 125.\t V\u00ec\t sao\t khi\t nh\u00ecn\t nghi\u00eang\t v\u00e0o\t ch\u1eadu\t thau\t \u0111\u1ea7y\t n\u01b0\u1edbc\t th\u1ea5y\t n\u01b0\u1edbc\t nh\u01b0 n\u00f4ng\th\u01a1n? 126.\tV\u00ec\tsao\tk\u00ednh\tm\u1edd\tb\u1ecb\tgi\u1ed9i\tn\u01b0\u1edbc\tv\u00e0o\ts\u1ebd\ttrong\tsu\u1ed1t? 127.\tV\u00ec\tsao\tb\u00f3ng\tb\u00ean\td\u01b0\u1edbi\t\u0111\u00e8n\td\u00e2y\tt\u00f3c\tth\u00ec\tr\u1ea5t\tr\u00f5,\tc\u00f2n\tb\u00f3ng\td\u01b0\u1edbi\t\u0111\u00e8n\t\u1ed1ng l\u1ea1i\tkh\u00f4ng\tr\u00f5? https:\/\/thuviensach.vn","128.\tV\u00ec\tsao\tkhi\tch\u1ee5p\t\u1ea3nh\tphong\tc\u1ea3nh\tth\u01b0\u1eddng\tph\u1ea3i\t\u0111\u1eb7t\tm\u1ed9t\tmi\u1ebfng\tk\u00ednh m\u00e0u\t\u1edf\ttr\u01b0\u1edbc\t\u1ed1ng\tk\u00ednh? 129.\tV\u00ec\tsao\tc\u00e1c\tv\u1eadn\t\u0111\u1ed9ng\tvi\u00ean\tleo\tn\u00fai\t\u0111\u1ec1u\tph\u1ea3i\tmang\tk\u00ednh\t\u0111en? 130.\tV\u00ec\tsao\t\u00e1nh\ts\u00e1ng\tc\u1ee7a\t\u0111\u00e8n\tpha\tchi\u1ebfu\tra\tsong\tsong? 131.\tV\u00ec\tsao\tbi\u1ec3n\tkh\u01a1i\tc\u00f3\tm\u00e0u\txanh\tth\u1eabm,\tc\u00f2n\tb\u1ecdt\tn\u01b0\u1edbc\ttr\u00ean\tbi\u1ec3n\tl\u1ea1i\tl\u00e0 m\u00e0u\ttr\u1eafng? 132.\tV\u00ec\tsao\tk\u00ednh\tl\u00fap\tc\u00f3\tth\u1ec3\tph\u00f3ng\tto\t\u1ea3nh\tv\u1eadt? 133.\tL\u00e0m\tth\u1ebf\tn\u00e0o\t\u0111\u1ec3\td\u00f9ng\tb\u0103ng\tl\u1ea5y\tl\u1eeda? 134.\tV\u00ec\tsao\td\u00f9ng\tk\u00ednh\thi\u1ec3n\tvi\tc\u00f3\tth\u1ec3\tth\u1ea5y\tr\u00f5\tnh\u1eefng\tv\u1eadt\tnh\u1ecf\tli\tti? 135.\tV\u00ec\tsao\tk\u00ednh\thi\u1ec3n\tvi\t\u0111i\u1ec7n\tt\u1eed\tc\u00f3\tth\u1ec3\tph\u00f3ng\tto\t\u1ea3nh\tv\u1eadt\tg\u1ea5p\ttri\u1ec7u\tl\u1ea7n? 136.\tV\u00ec\tsao\td\u00f9ng\tk\u00ednh\tvi\u1ec5n\tv\u1ecdng\tc\u00f3\tth\u1ec3\tth\u1ea5y\tr\u00f5\tv\u1eadt\tth\u1ec3\t\u1edf\txa? 137.\t V\u00ec\t sao\t \u0111\u1ed9\t r\u1ed9ng\t c\u1ee7a\t c\u00e1c\t m\u1ea3nh\t ba\t m\u00e0u\t tr\u00ean\t qu\u1ed1c\t k\u00ec\t Ph\u00e1p\t kh\u00f4ng b\u1eb1ng\tnhau? 138.\tV\u00ec\tsao\t\u0111\u00e8n\t\u0111\u01b0\u1eddng\ttrong\tm\u01b0a\tc\u00f3\tc\u00e1c\tqu\u1ea7ng\ts\u00e1ng? 139.\tV\u00ec\tsao\ttr\u00ean\ttr\u1eddi\tl\u1ea1i\txu\u1ea5t\thi\u1ec7n\tc\u1ea7u\tv\u1ed3ng? 140.\tV\u00ec\tsao\t\u0111\u00e8n\t\u1ed1ng\tc\u00f3\tth\u1ec3\tph\u00e1t\tra\t\u00e1nh\ts\u00e1ng\tnhi\u1ec1u\tm\u00e0u? 141.\tPh\u1ea3n\tx\u1ea1\tto\u00e0n\tph\u1ea7n\tl\u00e0\tg\u00ec? 142.\tV\u00ec\tsao\tl\u1ea1i\txu\u1ea5t\thi\u1ec7n\t\u1ea3o\t\u1ea3nh? 143.\t V\u00ec\t sao\t gi\u1ecdt\t x\u0103ng\t r\u01a1i\t xu\u1ed1ng\t \u0111\u01b0\u1eddng\t ph\u1ed1\t \u1ea9m\t \u01b0\u1edbt\t l\u1ea1i\t c\u00f3\t nhi\u1ec1u\t m\u00e0u s\u1eafc? 144.\t V\u00ec\t sao\t \\\"g\u01b0\u01a1ng\t th\u1ea5u\t quang\\\"\t th\u1eddi\t T\u00e2y\t H\u00e1n\t l\u1ea1i\t \u0111\u1ec3\t \u00e1nh\t s\u00e1ng\t xuy\u00ean qua? 145.\t V\u00ec\t sao\t \u00e1nh\t s\u00e1ng\t m\u00e0u\t \u0111\u1ecf\t th\u01b0\u1eddng\t \u0111\u01b0\u1ee3c\t d\u00f9ng\t \u0111\u1ec3\t l\u00e0m\t t\u00edn\t hi\u1ec7u\t c\u1ea3nh b\u00e1o\tnguy\thi\u1ec3m? 146.\tLaze\tl\u00e0\tg\u00ec? 147.\tLaze\tc\u00f3\tnh\u1eefng\t\u0111\u1eb7c\tt\u00ednh\tn\u00e0o? 148.\tPh\u00e9p\tch\u1ee5p\t\u1ea3nh\tgiao\tthoa\tlaze\tl\u00e0\tg\u00ec? 149.\tV\u00ec\tsao\th\u00ecnh\t\u1ea3nh\tlaze\ttr\u00ean\ts\u00e2n\tkh\u1ea5u\tc\u00f3\tth\u1ec3\tbi\u1ebfn\t\u0111\u1ed5i\ttheo\tti\u1ebft\tt\u1ea5u\tc\u1ee7a b\u1ea3n\tnh\u1ea1c? 150.\tV\u00ec\tsao\ttia\tX\tc\u00f3\tth\u1ec3\txuy\u00ean\tqua\tc\u01a1\tth\u1ec3\tng\u01b0\u1eddi? 151.\tV\u00ec\tsao\tth\u1ef1c\tph\u1ea9m\t\u0111\u01b0\u1ee3c\tchi\u1ebfu\tx\u1ea1\tc\u00f3\tth\u1ec3\tb\u1ea3o\tqu\u1ea3n\tl\u00e2u\td\u00e0i? 152.\t V\u00ec\t sao\t m\u00e1y\t ki\u1ec3m\t tra\t an\t to\u00e0n\t c\u00f3\t th\u1ec3\t ph\u00e1t\t hi\u1ec7n\t h\u00e0ng\t c\u1ea5m\t c\u1ea5t\t gi\u1ea5u trong\th\u00e0nh\tl\u00ed? 153.\tNguy\u00ean\tl\u00ed\tt\u1ed1c\t\u0111\u1ed9\t\u00e1nh\ts\u00e1ng\tkh\u00f4ng\t\u0111\u1ed5i\tl\u00e0\tg\u00ec? 154.\t V\u00ec\t sao\t t\u1ed1c\t \u0111\u1ed9\t chuy\u1ec3n\t \u0111\u1ed9ng\t c\u1ee7a\t b\u1ea5t\t k\u00ec\t v\u1eadt\t th\u1ec3\t n\u00e0o\t c\u0169ng\t kh\u00f4ng\t th\u1ec3 \u0111\u1ea1t\tt\u1edbi\tv\u00e0\tv\u01b0\u1ee3t\tqu\u00e1\tt\u1ed1c\t\u0111\u1ed9\t\u00e1nh\ts\u00e1ng? 155.\tV\u00ec\tsao\tn\u00f3i\ttia\ts\u00e1ng\ttr\u00ean\ttr\u1eddi\tl\u00e0\tcong? 156.\tV\u00ec\tsao\tquang\tl\u01b0\u1ee3ng\tt\u1eed\tkh\u00f4ng\tph\u1ea3i\tl\u00e0\th\u1ea1t\tv\u1eadt\tch\u1ea5t,\tc\u0169ng\tkh\u00f4ng\tph\u1ea3i l\u00e0\ts\u00f3ng? https:\/\/thuviensach.vn","157.\tV\u00ec\tsao\tn\u00f3i\th\u1ea1t\tc\u01a1\tb\u1ea3n\tkh\u00f4ng\tc\u00f2n\tc\u01a1\tb\u1ea3n\tn\u1eefa? 158.\tV\u00ec\tsao\tnghi\u00ean\tc\u1ee9u\th\u1ea1t\tc\u01a1\tb\u1ea3n\tnh\u1ecf\tx\u00edu\tm\u00e0\tph\u1ea3i\td\u00f9ng\tm\u00e1y\tgia\tt\u1ed1c\t\u0111\u1ed3 s\u1ed9? 159.\tV\u00ec\tsao\tn\u00f3i\tplasma\tl\u00e0\ttr\u1ea1ng\tth\u00e1i\tth\u1ee9\tt\u01b0\tc\u1ee7a\tv\u1eadt\tch\u1ea5t? 160.\tV\u00ec\tsao\tn\u00f3i\tch\u1ea5t\tsi\u00eau\td\u1eabn\tkh\u00f4ng\tph\u1ea3i\tl\u00e0\tch\u1ea5t\td\u1eabn\tho\u00e0n\tto\u00e0n? 161.\t V\u00ec\t sao\t n\u00f3i\t tinh\t th\u1ec3\t l\u1ecfng\t v\u1eeba\t kh\u00f4ng\t ph\u1ea3i\t l\u00e0\t tinh\t th\u1ec3\t c\u0169ng\t kh\u00f4ng ph\u1ea3i\tl\u00e0\tch\u1ea5t\tl\u1ecfng? 162.\tV\u00ec\tsao\tn\u00f3i\tm\u00f4\th\u00ecnh\tk\u1ebft\tc\u1ea5u\tph\u00e2n\tt\u1eed\tc\u1ee7a\tC60\tgi\u1ed1ng\tqu\u1ea3\tb\u00f3ng\t\u0111\u00e1? 163.\tV\u00ec\tsao\tlaze\tc\u00f3\tth\u1ec3\tl\u00e0m\tcho\tnguy\u00ean\tt\u1eed\t\\\"ngu\u1ed9i\\\"\t\u0111i? 164.\t\\\"Hi\u1ec7u\t\u1ee9ng\tc\u00e1nh\tb\u01b0\u1edbm\\\"\tc\u1ee7a\tgi\u1edbi\tt\u1ef1\tnhi\u00ean\tl\u00e0\tg\u00ec? 165.\tV\u00ec\tsao\t\u0111\u1ed9\td\u00e0i\t\u0111\u01b0\u1eddng\tb\u1edd\tbi\u1ec3n\tkh\u00f4ng\tth\u1ec3\t\u0111o\tch\u00ednh\tx\u00e1c\t\u0111\u01b0\u1ee3c? 166.\tPh\u1ea3n\tv\u1eadt\tch\u1ea5t\tl\u00e0\tg\u00ec? 167.\tV\u1eadt\tch\u1ea5t\tt\u1ed1i\tl\u00e0\tg\u00ec? 168.\tN\u01a1trino\tl\u00e0\tg\u00ec? 169.\tQuan\ts\u00e1t\tth\u1ebf\tgi\u1edbi\tnguy\u00ean\tt\u1eed\tnh\u1ecf\tb\u00e9\tnh\u01b0\tth\u1ebf\tn\u00e0o? 170.\tLi\u1ec7u\tlo\u00e0i\tng\u01b0\u1eddi\tc\u00f3\tth\u1ec3\tthao\tt\u00e1c\tnguy\u00ean\tt\u1eed? 171.\tKhoa\th\u1ecdc\t\u0111a\tng\u00e0nh\tc\u1ee7a\tkhoa\th\u1ecdc\tk\u0129\tthu\u1eadt\tl\u00e0\tg\u00ec? 172.\tV\u00ec\tsao\txe\t\u0111\u1ea1p\t\u0111\u1ecba\th\u00ecnh\tc\u00f3\tth\u1ec3\tchuy\u1ec3n\tl\u00edp\t\u0111\u1ed5i\tt\u1ed1c\t\u0111\u1ed9? 173.\tV\u00ec\tsao\tl\u00f2\t\u0111i\u1ec7n\tt\u1eeb\tph\u1ea3i\td\u00f9ng\tn\u1ed3i\t\u0111\u00e1y\tph\u1eb3ng? 174.\tV\u00ec\tsao\tn\u1ed3i\tc\u01a1m\t\u0111i\u1ec7n\tc\u00f3\tth\u1ec3\tt\u1ef1\t\u0111\u1ed9ng\tn\u1ea5u\tch\u00edn\tc\u01a1m,\tgi\u1eef\t\u0111\u01b0\u1ee3c\tnhi\u1ec7t? 175.\tV\u00ec\tsao\tm\u00e1y\ts\u1ea5y\ttay\tc\u00f3\tth\u1ec3\tt\u1ef1\t\u0111\u1ed9ng\tb\u1eadt\tt\u1eaft? 176.\tV\u00ec\tsao\tm\u1ed9t\ts\u1ed1\tqu\u1ea1t\tm\u00e1y\tc\u00f3\tth\u1ec3\tth\u1ed5i\tra\tgi\u00f3\tm\u00f4\tph\u1ecfng\tt\u1ef1\tnhi\u00ean? 177.\tV\u00ec\tsao\t\\\"m\u1eaft\tm\u00e8o\\\"\tkh\u00f4ng\tth\u1ec3\tnh\u00ecn\tt\u1eeb\thai\t\u0111\u1ea7u? 178.\tV\u00ec\tsao\td\u00f9ng\tm\u00e1y\tnh\u00ecn\t\u0111\u00eam\tc\u00f3\tth\u1ec3\tth\u1ea5y\tr\u00f5\tc\u1ea3nh\tv\u1eadt\ttrong\tb\u00f3ng\tt\u1ed1i? 179.\tV\u00ec\tsao\t\u0111\u00e8n\tb\u00e0n\t\u0111i\u1ec7n\tt\u1eed\tc\u00f3\tth\u1ec3\tph\u00f2ng\tng\u1eeba\tc\u1eadn\tth\u1ecb? 180.\tM\u1eaft\t\u0111i\u1ec7n\tt\u1eed\tgi\u00fap\tng\u01b0\u1eddi\tm\u00f9\t\\\"nh\u00ecn\\\"\t\u0111\u1ed3\tv\u1eadt\tnh\u01b0\tth\u1ebf\tn\u00e0o? 181.\tV\u00ec\tsao\tm\u0169i\t\u0111i\u1ec7n\tt\u1eed\tc\u00f3\tkh\u1ee9u\tgi\u00e1c\tnhanh\tnh\u1ea1y? 182.\tT\u1ee7\tkh\u1eed\ttr\u00f9ng\tti\u1ebfn\th\u00e0nh\tkh\u1eed\ttr\u00f9ng\tcho\tb\u1ed9\t\u0111\u1ed3\t\u0103n\tnh\u01b0\tth\u1ebf\tn\u00e0o? 183.\t V\u00ec\t sao\t kho\u1ea3ng\t c\u00e1ch\t gi\u1eefa\t qu\u1ea1t\t tr\u1ea7n\t v\u1edbi\t tr\u1ea7n\t nh\u00e0\t kh\u00f4ng\t \u0111\u01b0\u1ee3c\t qu\u00e1 nh\u1ecf? 184.\tV\u00ec\tsao\ts\u00fang\tquang\t\u0111i\u1ec7n\tc\u1ee7a\tm\u00e1y\ttr\u00f2\tch\u01a1i\tc\u00f3\tth\u1ec3\tb\u1eafn\ttr\u00fang\tm\u1ee5c\tti\u00eau tr\u00ean\tm\u00e0n\th\u00ecnh? 185.\tV\u00ec\tsao\tc\u00f3\tl\u00fac\ts\u1edd\tv\u00e0o\tv\u1ecf\tngo\u00e0i\tkim\tlo\u1ea1i\tc\u1ee7a\t\u0111\u1ed3\t\u0111i\u1ec7n\tgia\td\u1ee5ng\tl\u1ea1i\tc\u00f3 c\u1ea3m\tgi\u00e1c\tt\u00ea\tt\u00ea? 186.\t V\u00ec\t sao\t c\u00e1i\t c\u00e2n\t \u0111i\u1ec7n\t t\u1eed\t l\u1eadp\t t\u1ee9c\t bi\u1ec3u\t hi\u1ec7n\t r\u00f5\t tr\u1ecdng\t l\u01b0\u1ee3ng\t v\u00e0\t gi\u00e1\t c\u1ea3 c\u1ee7a\tv\u1eadt\tb\u1ecb\tc\u00e2n? 187.\tV\u00ec\tsao\tkh\u00f4ng\tth\u1ec3\td\u00f9ng\tm\u00e1y\tbi\u1ebfn\t\u00e1p\t\u0111\u1ec3\tn\u00e2ng\tcao\tho\u1eb7c\th\u1ea1\tth\u1ea5p\t\u0111i\u1ec7n \u00e1p\tc\u1ee7a\tpin? 188.\tV\u00ec\tsao\tm\u00e1y\th\u00fat\tb\u1ee5i\tc\u00f3\tth\u1ec3\th\u00fat\t\u0111\u01b0\u1ee3c\tb\u1ee5i? https:\/\/thuviensach.vn","189.\tV\u00ec\tsao\tkhi\ts\u1eed\td\u1ee5ng\tm\u1ed9t\ts\u1ed1\t\u0111\u1ed3\t\u0111i\u1ec7n\tgia\td\u1ee5ng\tnh\u1ea5t\tthi\u1ebft\tph\u1ea3i\tn\u1ed1i\td\u00e2y \u0111\u1ea5t? 190.\tV\u00ec\tsao\tm\u00e1y\tgi\u1eb7t\tc\u00f3\tth\u1ec3\tgi\u1eb7t\ts\u1ea1ch\tqu\u1ea7n\t\u00e1o? 191.\tV\u00ec\tsao\tl\u00f2\tvi\ts\u00f3ng\tkh\u00f4ng\tc\u00f3\tl\u1eeda\tm\u00e0\tv\u1eabn\tn\u1ea5u\tch\u00edn\t\u0111\u01b0\u1ee3c\tth\u1ee9c\t\u0103n? 192.\t V\u00ec\t sao\t c\u00f3\t th\u1ec3\t \u0111i\u1ec1u\t khi\u1ec3n\t m\u1ed9t\t s\u1ed1\t \u0111\u1ed3\t \u0111i\u1ec7n\t gia\t d\u1ee5ng\t t\u1eeb\t xa\t b\u1eb1ng\t c\u00e1i \u0111i\u1ec1u\tkhi\u1ec3n? 193.\tV\u00ec\tsao\tm\u00e1y\tphotocopy\tc\u00f3\tth\u1ec3\tin\tl\u1ea1i\th\u00ecnh\tv\u1ebd,\tch\u1eef\tvi\u1ebft? 194.\tV\u00ec\tsao\t\u0111\u00e0n\t\u0111i\u1ec7n\tt\u1eed\tc\u00f3\tth\u1ec3\tt\u1ea5u\tl\u00ean\t\u0111i\u1ec7u\tnh\u1ea1c\tt\u01b0\u01a1i\tvui\t\u00eam\ttai? 195.\tV\u00ec\tsao\tm\u00e1y\tl\u00e0m\ts\u1ea1ch\tkh\u00f4ng\tkh\u00ed\tc\u00f3\tth\u1ec3\tl\u00e0m\ts\u1ea1ch\tkh\u00f4ng\tkh\u00ed? 196.\tV\u00ec\tsao\tc\u00e1i\tb\u1ea3o\th\u1ed9\tkh\u00ed\toxit\tcacbon\tc\u00f3\tth\u1ec3\tng\u0103n\tng\u1eeba\ttr\u00fang\t\u0111\u1ed9c\toxit cacbon? 197.\tV\u00ec\tsao\tthi\u1ebft\tb\u1ecb\tb\u1ea3o\th\u1ed9\tr\u00f2\t\u0111i\u1ec7n\tc\u00f3\tth\u1ec3\tng\u0103n\tng\u1eeba\t\u0111i\u1ec7n\tgi\u1eadt? 198.\tV\u00ec\tsao\tchu\u00f4ng\tc\u1ea3nh\tb\u00e1o\tph\u00f2ng\ttr\u1ed9m\tc\u00f3\tth\u1ec3\tt\u1ef1\t\u0111\u1ed9ng\tk\u00eau? 199.\tV\u00ec\tsao\tm\u00e1y\tc\u1ea3m\tbi\u1ebfn\tkh\u00f3i\tm\u00f9\tc\u00f3\tth\u1ec3\tt\u1ef1\t\u0111\u1ed9ng\tb\u00e1o\tch\u00e1y? 200.\tV\u00ec\tsao\tkh\u00f4ng\tm\u1edf\tc\u1eeda\tc\u0169ng\tc\u00f3\tth\u1ec3\ttr\u00f4ng\tth\u1ea5y\tng\u01b0\u1eddi\t\u1edf\tngo\u00e0i\tc\u1eeda? 201.\t\u1ed4\tkh\u00f3a\tc\u1eeda\t\u0111i\u1ec7n\tt\u1eed\tb\u1ea3o\t\u0111\u1ea3m\tan\tto\u00e0n\tnh\u01b0\tth\u1ebf\tn\u00e0o? 202.\tV\u00ec\tsao\ttrong\tto\u00e0\tnh\u00e0\tcao\tt\u1ea7ng\tkh\u00f4ng\tn\u00ean\td\u00f9ng\t\u1ed1ng\tn\u01b0\u1edbc\tm\u00e1y\tl\u00e0m d\u00e2y\tn\u1ed1i\t\u0111\u1ea5t\tan\tto\u00e0n? 203.\tV\u00ec\tsao\tc\u00f3\tra\u0111i\u00f4\tc\u00f3\tkh\u00e1\tnhi\u1ec1u\tb\u0103ng\ts\u00f3ng\tng\u1eafn? 204.\tV\u00ec\tsao\tra\u0111i\u00f4\tc\u00f3\tth\u1ec3\tch\u1ecdn\tl\u1ef1a\tc\u00e1c\t\u0111\u00e0i\tph\u00e1t\tthanh? 205.\tRa\u0111i\u00f4\tc\u00f3\tth\u1ec3\tthu\t\u0111\u01b0\u1ee3c\t\u00e2m\tthanh\tc\u1ee7a\t\u0111\u00e0i\ttruy\u1ec1n\th\u00ecnh\tkh\u00f4ng? 206.\tV\u00ec\tsao\t\u00e2m\th\u01b0\u1edfng\tc\u1ee7a\t\u00e2m\tthanh\tv\u00f2ng1\tnghe\t\u0111\u1eb7c\tbi\u1ec7t\thay? 207.\tV\u00ec\tsao\tc\u00f3\tth\u1ec3\td\u00f9ng\tlaze\t\u0111\u1ec3\t\u0111\u0129a\th\u00e1t\tph\u00e1t\t\u00e2m\tthanh? 208.\tV\u00ec\tsao\tb\u0103ng\tt\u1eeb\tc\u00f3\tth\u1ec3\tghi\t\u00e2m,\tghi\th\u00ecnh? 209.\tV\u00ec\tsao\ttivi\tm\u00e0u\tc\u00f3\tth\u1ec3\td\u00f9ng\tba\tlo\u1ea1i\tm\u00e0u\ts\u1eafc\t\u0111\u1ecf,\tl\u1ee5c,\tlam\th\u1ee3p\tth\u00e0nh h\u00ecnh\t\u1ea3nh? 210.\t V\u00ec\t sao\t khi\t xem\t truy\u1ec1n\t h\u00ecnh,\t ng\u01b0\u1eddi\t v\u00e0\t tivi\t ph\u1ea3i\t gi\u1eef\t kho\u1ea3ng\t c\u00e1ch nh\u1ea5t\t\u0111\u1ecbnh? 211.\tV\u00ec\tsao\tc\u00f3\tlo\u1ea1i\ttivi\tc\u00f3\tch\u1ee9c\tn\u0103ng\tph\u00e2n\tchia\tm\u00e0n\th\u00ecnh? 212.\tTh\u1ebf\tn\u00e0o\tl\u00e0\ttivi\tm\u00e0n\th\u00ecnh\ttinh\tth\u1ec3\tl\u1ecfng? 213.\tTh\u1ebf\tn\u00e0o\tl\u00e0\ttruy\u1ec1n\th\u00ecnh\ts\u1ed1? 214.\tV\u00ec\tsao\tt\u1ee7\tl\u1ea1nh\tc\u00f3\tth\u1ec3\tl\u00e0m\tl\u1ea1nh? 215.\tM\u00e1y\t\u0111i\u1ec1u\tho\u00e0\tkh\u00f4ng\tkh\u00ed\tv\u00ec\tsao\tv\u1eeba\tc\u00f3\tth\u1ec3\tl\u00e0m\tl\u1ea1nh\tl\u1ea1i\tv\u1eeba\tc\u00f3\tth\u1ec3 l\u00e0m\tn\u00f3ng? 216.\tV\u00ec\tsao\tsau\tkhi\tt\u1ee7\tl\u1ea1nh\tv\u00e0\tm\u00e1y\t\u0111i\u1ec1u\tho\u00e0\tkh\u00f4ng\tkh\u00ed\tt\u1ea1m\tng\u1eebng,\tph\u1ea3i \u0111\u1ee3i\t3\t-\t5\tph\u00fat\tsau\tm\u1edbi\t\u0111\u01b0\u1ee3c\tkh\u1edfi\t\u0111\u1ed9ng\tl\u1ea1i? 217.\tV\u00ec\tsao\tc\u1eeda\tv\u00e0\tv\u00e1ch\tkhung\tc\u1ee7a\tt\u1ee7\tl\u1ea1nh\t\u0111\u1ec1u\tkh\u00e1\td\u00e0y? 218.\tT\u1ee7\tl\u1ea1nh\txanh\tl\u00e0\tg\u00ec? 219.\tV\u00ec\tsao\tm\u00e1y\tr\u00e8m\tgi\u00f3\tc\u00f3\tth\u1ec3\tng\u0103n\tc\u00e1ch\tkh\u00f4ng\tkh\u00ed\ttrong\tv\u00e0\tngo\u00e0i\tc\u1eeda https:\/\/thuviensach.vn","\u0111\u01b0\u1ee3c? 220.\tM\u00e1y\tch\u1ee5p\t\u1ea3nh\t\\\"th\u1eb1ng\tng\u1ed1c\\\"\tch\u1ee5p\t\u1ea3nh\tnh\u01b0\tth\u1ebf\tn\u00e0o? 221.\tV\u00ec\tsao\tm\u00e1y\tch\u1ee5p\tm\u1ed9t\tl\u1ea7n\tth\u00e0nh\t\u1ea3nh\tsau\tkhi\tch\u1ee5p\tl\u00e0\tc\u00f3\tth\u1ec3\tl\u1ea5y\t\u1ea3nh ngay? 222.\tM\u00e1y\tch\u1ee5p\t\u1ea3nh\tk\u0129\tthu\u1eadt\ts\u1ed1\tl\u00e0\tg\u00ec? 223.\tC\u00f3\tth\u1ec3\td\u00f9ng\tph\u01b0\u01a1ng\tph\u00e1p\tlaze\t\u0111\u1ec3\t\u0111i\u1ec1u\ttr\u1ecb\tc\u1eadn\tth\u1ecb\tkh\u00f4ng? 224.\tDVD\tl\u00e0\tg\u00ec? 225.\t\u0110\u1ed3\t\u0111i\u1ec7n\tlogic\tm\u1edd\td\u00f9ng\ttrong\tnh\u00e0\tl\u00e0\tg\u00ec? https:\/\/thuviensach.vn"]