MEETINGS/ INTERACTIONS ORIENTATION PROGRAMME STAFF MEETING Principal’s Interaction With Class 9 Principal’s Interaction With Class Students & Parents 11 Students & Parents 51
PANEL DISCUSSION ON NEW NEP 2020 52
ONLINE HEALTHY HEART DAY CELEBRATION 53
VIRTUAL TOUR TO THE ALPINE MEADOWS OF SIKKIM 54
MATHEMATICS DAY 55
EACH ONE PLANT ONE 56
नारी की पररभाषा नेत्रों भें नायी के साहस औय आशा है, उचित सभम ऩय उचित ढॊग भंे क्रोध कये वो दवु ासा ा है मही नायी की ऩरयबाषा है, मही नायी की ऩरयबाषा है तमु ्हे नायी ने जन्भ ने ददमा है, तुभ उसका सम्भान कयो दमु ोधन फन िीयहयण कय भत उसका अऩभान कयो ववडम्फना मह कै सी जग की, जजसको देवी का रूऩ फतामा उसी का शोषण कयके , उसी नायी को खूफ सतामा ओ दरयन्दो भहाऩावऩमों, क्मा तुम्हे चधक्काय नहीॊ क्मा हभायी भाता फहनें बायत भंे भहपू ज़ नहीॊ स्वमॊ को याजा कहते हैं जो, कहते आवाज़ को नयभ कयो अऩने कु कृ त्मों को देखो औय उनऩय शभा कयो ध्मान से सनु ो उन िीखों को देश के हय कोने से देती सनु ाई क्मा अऩने ही वतन भें अऩनी दहपाज़त के लरए हय फेटी कयती यहेगी रड़ाई ? हय इॊसान का सऩना है कक यहना है उसे स्वछन्द, ऩय कफ तक कयते यहोगे तभु अऩनी ही फदे टमों की आवाज़ंे फदॊ ? झाॉसी की यानी भननकर्णका ा ने बीषण सगॊ ्राभ ककमा, अॊग्रेज़ों से रोहा रके य कहावत को िरयताथा ककमा माद कयो उस यावण को जजसने सीता का हयण ककमा, भमाादा ऩरु ुषोत्तभ ने आकय उसका भयण ककमा ऩरु ुष प्रधान देश की कफ तक देखेंगे प्रबतु ा, तफ तक ऺम होती यहेगी नायी की अजस्भता ? नायी ही कयेगी सबी की अलबराषा की ऩनू त,ा नायी ही ऩणू ा कयेगी जग की सबी अनतश्मोजक्त इनतहास साऺी है नायी की उऩरजधध का, िाॉद फीफी, रोऩाभदु ्रा औय ववदषु ी गागी का जगह जगह सपर नारयमों का प्रकाश है अऩरयलभत, रूदिवादी सभाजवारों हो जाओ अफ तभु चिनॊ तत नायी का तेज है अप्रनतभ, ऩयू ी दनु नमा को हो जाए मह इल्भ ऩयभ ऩववत्र सवोऩरय भात,ृ वह है सबी की जीवन दात्री शोषण कयने वारो आ जाओ अगय साहस हो तो, 57 अगय ज़या बी दम्ब औय उत्साह हो तो जजतने ननदाम हो तुभ उतना अत्मािाय कयो, उस नायी,स्त्री व अफरा को रािाय कयो ऩय गाॉठ फाॉध रो इस फात की कक वह उठे गी क्मोकक नेत्रों भें नायी के साहस औय आशा है, उचित सभम ऩय उचित ढॊग भंे क्रोध कये वो दवु ासा ा है मही नायी की ऩरयबाषा है, मही नायी की ऩरयबाषा है Siddhartha Mehta- 10 F
STEALTH TECHNOLOGY Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures, which covers a range of methods used to make personnel, aircraft, ships, submarines, missiles, satellites, and ground vehicles less visible (ideally invisible) to radar, infrared, sonar and other detection methods. It corresponds to military camouflage for these parts of the electromagnetic spectrum (i.e., multi-spectral camouflage) . It is a set of technologies, used in combinations, that can greatly reduce the distances at which a person or vehicle can be detected; more so radar cross-section reductions, but also acoustic, thermal, and other aspects. Development of modern stealth technologies in the United States began in 1958, where earlier attempts to prevent radar tracking of its U-2 spy planes during the Cold War by the Soviet Union had been unsuccessful. Designers turned to developing a specific shape for planes that tended to reduce detection by redirecting electromagnetic radiation waves from radars.] Radiation- absorbent material s also tested and made to reduce or block radar signals that reflect off the surfaces of aircraft. Such changes to shape and surface composition comprise stealth technology as currently used on the Northrop Grumman B-2 Spirit \"Stealth Bomber\". Principle:- Stealth technology is not a single technology. It is a combination of technologies that attempt to greatly reduce the distances at which a person or vehicle can be detected; in particular radar cross section reductions, but also acoustic, thermal, and other aspects. While designing a stealth aircraft, the following points are to be considered : - Reducing the imprint on radar screens / stifling radio transmissions - Turning down the heat of its infrared picture - Improved aerodynamics - Making the plane less visible. 58 - Muffling the noise
Visibility:- The simplest of the stealth techniques used is simply camouflage; the use of paint or other materials to colour and break up the lines of the vehicle or person. Most stealth aircraft use matte paint and dark colours, and operate only at night. Lately, interest in daylight Stealth (especially by the USAF) has emphasized the use of grey paint in disruptive schemes, and it is assumed that Yehudi lights could be used in the future to mask shadows in the airframe. Plasma Stealth:- In this the aircraft injects a stream of ionised gas which envelopes it and makes completely invisible. • Low Level Flying Another technique used by aircraft to avoid radar is to fly at very low levels where there is a great deal of 'ground clutter', radar reflections given off by buildings and other objects. Low-level aircraft can go undetected by most radar systems. Drawbacks:- • Poor aerodynamic properties. • Requires high end electronic instruments and software's. • High maintenance cost. • Any stealthy vehicle becomes un-stealthy even when a door or hatch opens. Conclusion:- Stealth Technology concludes its military applications in fighter Aircrafts, so that the aircrafts designed using this technology are almost invisible to Radar detection techniques and other sonar, Infrared detection methods. The first principle mainly concludes this by the reduction of RCS. “A step towards achieving invisibility” Piyush Kumar XI B 59
सरू ज से थोडी सी गप्पे दयू है खफू भगय आऩ ऩास नजय आते हंै ददखाई देते हैं सदा रार गसु ्से से आग फयसाते हैं आते हंै हय ददन ऩूयफ से औय ऩजश्िभ भंे िरे जाते हैं जीवन हभाया प्रकाश से औय ऊजाा से बय जाते हैं भगय आऩ ना हो जीवन भें सदा अधॊ काय ही यहता है आऩ ही से है जीवन सॊबव हय सवेया मह कहता है ऩेड़-ऩौधे, ऩश-ु ऩऺी औय हभ सबी हैं आऩ के सहाये भेहभान की तयह हय ददन घय आते हो हभाये Suryam Barve -6F 60
OUR ENVIRONMENTAL HEROES CREATING MINI GARDEN 61
SPREADING THE FREGNANCE OF CARE AND RESPECT 62
STUDENTS OF APSDC PROVE TO BE ECO FRIENDLY GENERATION 63
Army Public School, Delhi Cantt Thanks Frontline Warriors Thank You 64
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