How Long To Fall Through The Earth?
Thanks to Audible.com for supporting this video: http://www.audible.com/minutephysics Original video collaboration with Vsauce: https://www.youtube.com/watch?v=jN-FfJKgis8 Thanks to everyone...
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I recently received this question via email:Hey Henry,A while ago you did a video... called "What if the Earth were Hollow?" where you showedhow long it would take to fall through the earth. I was simply wondering how that waseven calculated since the force of gravity would constantly be changing due to the growingamount of mass above you.PeterOk, so we've got a hole through the earth, and it goes from the north pole to the southpole – that way we don't have to worry about the Coriolis effect from the earth's spinning.There's also no air in the hole, otherwise you'd reach terminal velocity pretty quicklyand your trip would be slow and boring. There are a few different ways to figure out howlong it'll t...
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I recently received this question via email:Hey Henry,A while ago you did a video... called "What if the Earth were Hollow?" where you showedhow long it would take to fall through the earth. I was simply wondering how that waseven calculated since the force of gravity would constantly be changing due to the growingamount of mass above you.PeterOk, so we've got a hole through the earth, and it goes from the north pole to the southpole – that way we don't have to worry about the Coriolis effect from the earth's spinning.There's also no air in the hole, otherwise you'd reach terminal velocity pretty quicklyand your trip would be slow and boring. There are a few different ways to figure out howlong it'll t...
