fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 22 hours agoI c it!mander.xyzimagemessage-square30fedilinkarrow-up1693arrow-down16
arrow-up1687arrow-down1imageI c it!mander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 22 hours agomessage-square30fedilink
minus-squaremEEGal@lemmy.worldlinkfedilinkEnglisharrow-up22·21 hours agoYou can actually use this, or more generally the shadow of a tree on any sunny day to calculate the distance to the sun ! (Can’t seem to find the video demonstrating it, but I have a feeling it’s from Physics Girl or Up And Atom on youtube)
minus-squareQuibblekrust@thelemmy.clublinkfedilinkEnglisharrow-up2·10 hours agoOnly if you know the sun’s size, which kind of presupposes you know its distance.
minus-squareWolf314159@startrek.websitelinkfedilinkEnglisharrow-up8·16 hours agoThe ratio of the size of the image to the distance from the pinhole is the same as the ratio of the size of the sun to the distance to the sun.
minus-squaremEEGal@lemmy.worldlinkfedilinkEnglisharrow-up4·19 hours agoMy gut says Thales’ thorem, but this needs checking. That’s why I was looking for the video
You can actually use this, or more generally the shadow of a tree on any sunny day to calculate the distance to the sun !
(Can’t seem to find the video demonstrating it, but I have a feeling it’s from Physics Girl or Up And Atom on youtube)
Only if you know the sun’s size, which kind of presupposes you know its distance.
The ratio of the size of the image to the distance from the pinhole is the same as the ratio of the size of the sun to the distance to the sun.
how?
My gut says Thales’ thorem, but this needs checking.
That’s why I was looking for the video
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