5,081 意见 · 09/23/26
The Age of Sunlight on Your Skin
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11/04/26
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科学与技术
While sunlight takes just over eight minutes to travel from the Sun to Earth, the energy itself takes tens of thousands of years to escape the Sun's radiative zone as photons are continuously absorbed and re-emitted.
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5,081 意见 · 09/23/26
