INeedMana@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-23 months agoTIL Gravity is not about mass pulling other mass. It's mass bending time spacetime that makes other mass get closerwww.youtube.comexternal-linkmessage-square70fedilinkarrow-up1349arrow-down113
arrow-up1336arrow-down1external-linkTIL Gravity is not about mass pulling other mass. It's mass bending time spacetime that makes other mass get closerwww.youtube.comINeedMana@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-23 months agomessage-square70fedilink
minus-squaretacosplease@lemmy.worldlinkfedilinkEnglisharrow-up2arrow-down4·3 months agoMassive things cause gravity. We experience this, of course, as the earth pulling us in towards its center of mass. But if gravity pushes, then what is it that is getting on the other side of me and pushing me towards the earth? Where is the physical origin of that pushing force? How does it know to get on the far side of me and push me “down” toward the giant mass that is the earth? None of it makes sense to me. I hope it’s true and things are just that weird.
Massive things cause gravity. We experience this, of course, as the earth pulling us in towards its center of mass.
But if gravity pushes, then what is it that is getting on the other side of me and pushing me towards the earth?
Where is the physical origin of that pushing force?
How does it know to get on the far side of me and push me “down” toward the giant mass that is the earth?
None of it makes sense to me. I hope it’s true and things are just that weird.