Samacheer Kalvi · 11th TN - English Medium · Physics Volume 1 · Page 297

COMPETITIVE EXAM CORNER

Chapter 1: 11th Physics Volume 1 · Physics Volume 1 · EN medium

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Table A1. Systematic developments in Physics over centuries Observation of motion of Sun, Stars, Planets and Moon Around BC (Early Greeks) In the universe everything is changing. Nothing remains in the same state indefinitely. The idea of ‘time’ started with this understanding. Around BC (Heraclitus). Everything is composed of entirely small indivisible elements called ‘atoms’. Development of theory of ‘atomism’. But that time it is a hypothesis. No experimental proof.

📖 Namma Kalvi 11th Physics Textbook Volume 1 English Medium · Page 297

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Table A1. Systematic developments in Physics over centuries Observation of motion of Sun, Stars, Planets and Moon Around BC (Early Greeks) In the universe everything is changing. Nothing remains in the same state indefinitely. The idea of ‘time’ started with this understanding.

Around BC (Heraclitus). Everything is composed of entirely small indivisible elements called ‘atoms’. Development of theory of ‘atomism’. But that time it is a hypothesis.

No experimental proof.

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