Space | Physics Lecture 12 | Complete Science & Technology for UPPSC Prelims 2026 #uppcs

1위@samsungtab1791 day ago

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2위@BodhiSangamPCS1 day ago

Key topics covered include: • Basics of ISRO: The lecture covers foundational facts like the organization's founder (Dr. Vikram Sarabhai), its headquarters in Bengaluru, its department (Department of Space), and its first satellite, Aryabhata (1:26-2:13). • Rocket Principles: The instructor explains how rockets function based on Newton’s Third Law and the principle of conservation of linear momentum. A distinction is made between rocket engines, which carry their own oxygen, and jet engines, which rely on atmospheric oxygen (3:58-6:01). • Launch Vehicles: The evolution from SLV to PSLV (the 'workhorse' of ISRO) and GSLV is explained. The lecture details the stages of these vehicles and the technical progression of cryogenic engines (e.g., C20), noting the differences between GSLV Mk1, Mk2, and Mk3 (6:03-9:59, 10:14-13:18). • Space Missions: Highlights include the Chandrayaan-3 mission (and the importance of knowing lander/rover names), Mangalyaan, the Aditya-L1 solar mission, and the NISAR mission (13:20-16:15). • Institutional Roles: The video clarifies the roles of different entities: ISRO for space activity, NSIL as the commercial arm for launching services, and IN-SPACe as the regulator for private space companies in India (19:02-20:32).번역 보기