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What happens to light's lost energy? episode artwork

EPISODE · Sep 13, 2021 · 4 MIN

What happens to light's lost energy?

from Question of the Week, from the Naked Scientists · host Dr Chris Smith

Listener Mark was curious to know: "Since the Universe is expanding, and light coming across it stretches as it does so, becoming more red, what happens to the lost energy when the shorter wavelength, higher energy light towards the blue end of the spectrum is shifted into lower energy, red wavelengths?" Cameron Voisey went off to figure it out... Like this podcast? Please help us by supporting the Naked Scientists

Episode metadata supplied by the publisher feed · Published Sep 13, 2021

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What happens to light's lost energy?

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