Explanation:
Albert Einstein proposed special relativity (1905) and general relativity (1915), revolutionized concepts of space, time, gravity. E=mc². Newton classical mechanics. Galileo telescope, falling bodies. Watt steam engine.
Explanation:
G = 6.67 × 10⁻¹¹ N m²/kg² in SI, and 6.67 × 10⁻⁸ dyne cm²/g² in CGS. Both are correct. Important constant, measured by Cavendish. g is acceleration due to gravity, different.
Explanation:
Sir C.V. Raman discovered inelastic scattering of light (Raman effect) in 1928, received Nobel in 1930. Used to study molecular structure. Photoelectric effect: Einstein. Electron: J.J. Thomson. Fission: Hahn and Strassmann.
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