Russell, Bertrand creator text London A Mentor Book 1956 monographic eng

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144 p. 1. Touch and sight: the earth and the heavens ............... 9 2. What happens and what is observed ......................... 16 3. The velocity of light ............................................... 24 4. Clocks and foot-rules .............................................. 32 5. Space-time ............................................................ 41 6. The special theory of relativity ............................. 49 7. Intervals in space-time .......................................... 61 8. Einstein’s law of gravitation ................................. 72 9. Proofs of einstein’s law of gravitation ................... 83 10. Mass, momentum, energy, and action ................... 91 11. The expanding universe ........................................ 103 12. Conventions and natural laws ............................... 114 13. The abolition of ‘force’ ........................................ 123 14. What is matter? ................................................... 131 15. Philosophical consequences ................ / Bertrand Russell English Abc--Relativity 530.11 R911 (pbk) 260608 20260608135427.0