Quantum, Relativity & Forces Explained | Pixelated Physics

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Pixel-art pulsating yellow star with cyan and violet rings beside a lime sawtooth light curve over a ruler, titled Leavitt’s law: the blink is the ruler

Henrietta Leavitt's Law: How a Blinking Star Me...

In 1912 Henrietta Leavitt showed that brighter Cepheid stars pulse more slowly. That one relation became the first rung of the cosmic distance ladder, and it still sits at the...

Henrietta Leavitt's Law: How a Blinking Star Me...

In 1912 Henrietta Leavitt showed that brighter Cepheid stars pulse more slowly. That one relation became the first rung of the cosmic distance ladder, and it still sits at the...