lawrence@lemmy.worldM to Comic Strips@lemmy.world · edit-26 days agoBullseyelemmy.worldimagemessage-square18fedilinkarrow-up1431arrow-down110file-text
arrow-up1421arrow-down1imageBullseyelemmy.worldlawrence@lemmy.worldM to Comic Strips@lemmy.world · edit-26 days agomessage-square18fedilinkfile-text
minus-squareMyatZezou@piefed.sociallinkfedilinkEnglisharrow-up14·6 days agohttps://xkcd.com/681_large/ The sun creates a big gravity well. The earth happens to be quite close to the top of this well (because of the inverse square low). It takes about the same energy to go down and up the gravitational well.
https://xkcd.com/681_large/
The sun creates a big gravity well. The earth happens to be quite close to the top of this well (because of the inverse square low). It takes about the same energy to go down and up the gravitational well.