this is stupid. something about activation energy? are there any activation energy hacks?

  • Psych@lemmy.sdf.org
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    5 months ago

    What is this shadow longer than your tall thing ? I have never heard of it lol . Can you explain how to check it or why it is a thing that happens and is real ?

    • kambusha@sh.itjust.works
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      5 months ago

      I think that’s saying that if you go out at sunrise/sunset, the sun is on the horizon, and so your shadow will be a lot longer. In that scenario, you aren’t getting enough UV to produce the vitamin D you need.

      • Psych@lemmy.sdf.org
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        5 months ago

        Still I don’t understand does shadows have something to do with vitamin D ?

        • Fermion@feddit.nl
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          5 months ago

          If you have a long shadow, the sunlight that gets to you has gone through much more atmosphere which attenuates the ultraviolet light. So at high/low lattitudes and during morning/evening hours the amount of uv that gets to the surface is much lower.