Physics Lore

The story behind every law of nature.

How we found out how fast light travels, why the sky is blue and that the universe is expanding — one number, one measurement, one experiment at a time.

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Latest videoWhy Does the Number 137 Haunt Physics?2 Oct 2026 · 9:52Read the story behind it →

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2 min readWhy Feynman Told Physicists to Hang 137 on the WallIn 1985 Richard Feynman picked out one number for physicists to worry about. More than forty years on, it is measured to twelve digits and still unexplained.

6 min readWhy Does 137 Haunt Physics? The Strange Story of the Fine-Structure ConstantA pure number with no units sets how strongly light grips matter. We have measured it to twelve digits, and nobody can say why it is 1/137.

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1 videoConstants of Nature

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Why Does the Number 137 Haunt Physics?2 Oct 2026Read the story →

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Why Feynman Told Physicists to Hang 137 on the Wall Read the story →

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