Terence Tao on the cosmic distance ladder

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A Fields medallist explaining the history and logic of the cosmic distance ladder; real reasoning from simple observations rather than asserted numbers.

What you'll learn

Terence Tao and Grant Sanderson walk through how humans measured the size of the Earth, Moon, Sun and the distances to stars and galaxies, rung by rung.

Video by 3Blue1Brown, played through YouTube's embedded player.

Part of Physics, Traductions françaises, Traducciones al Español

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