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Showing posts from February 22, 2023

UPSC Prelims 2022 (Questions asked from New topics)

Solar storm (solar flare) High-energy electromagnetic radiation from solar flares is absorbed by the ionosphere, and does not reach the surface.  These may interfere with short-wave radio communication.  Solar flares pose no direct danger to humans on Earth.  Majority of the flares are not visible to the naked eye.  It can increase drag on satellites though in low Earth orbit, which can lead to orbital decay over time.  Solar flares lasting longer than 30 minutes are regarded as long duration events. Quantum Technology Quantum Entanglement When two atoms are connected, despite being separated. If you change the properties of one of them, the other changes instantly.  Quantum mechanics also says simply observing an atom changes its properties  Quantum protected cipher keys. It detects whether someone has interfered with the transmission of data. Quantum superposition Theory that subatomic particles exist in multiple states simultaneously.  While di...