▲ 1481 ▼ 1.1 History (lemmy.world) submitted 2 years ago by TheOneWithTheHair@lemmy.world to c/lemmyshitpost@lemmy.world 145 comments fedilink hide all child comments
[–] RememberTheApollo_@lemmy.world 24 points 2 years ago (2 children) And gravitational stuff. We kinda know it does it, but not how to do anything about it. permalink fedilink source hideshow 4 child comments replies: [–] arken@lemmy.world 10 points 2 years ago (2 children) Surely that's "heavy stuff"? permalink fedilink source parent hideshow 4 child comments replies: [–] Iron_Lynx@lemmy.world 7 points 2 years ago (1 child) And maybe also "big stuff". I suppose those two overlap quite a lot? permalink fedilink source parent hideshow 2 child comments replies: [–] Corkyskog@sh.itjust.works 1 point 2 years ago A nebula is one exception permalink fedilink source parent [–] afraid_of_zombies@lemmy.world 1 point 2 years ago I thought that meant black holes permalink fedilink source parent [–] mmcmonster@lemmy.world 3 points 2 years ago (2 children) How about something simple: Why does gravity feel the same as acceleration? permalink fedilink source parent hideshow 4 child comments replies: [–] applebusch@lemmy.world 11 points 2 years ago You can't feel gravity. What we feel really is acceleration, the acceleration of the earth pushing us up against gravity. permalink fedilink source parent [–] Natanael@slrpnk.net 1 point 2 years ago Because of relativistic frames of reference. Standing on a surface in a gravity well means you're being constantly pushed out of an inertial frame, by not allowing you to follow a geodesic path in spacetime, and the same effect happens under acceleration. https://youtu.be/XRr1kaXKBsU permalink fedilink source parent
[–] arken@lemmy.world 10 points 2 years ago (2 children) Surely that's "heavy stuff"? permalink fedilink source parent hideshow 4 child comments replies: [–] Iron_Lynx@lemmy.world 7 points 2 years ago (1 child) And maybe also "big stuff". I suppose those two overlap quite a lot? permalink fedilink source parent hideshow 2 child comments replies: [–] Corkyskog@sh.itjust.works 1 point 2 years ago A nebula is one exception permalink fedilink source parent [–] afraid_of_zombies@lemmy.world 1 point 2 years ago I thought that meant black holes permalink fedilink source parent
[–] Iron_Lynx@lemmy.world 7 points 2 years ago (1 child) And maybe also "big stuff". I suppose those two overlap quite a lot? permalink fedilink source parent hideshow 2 child comments replies: [–] Corkyskog@sh.itjust.works 1 point 2 years ago A nebula is one exception permalink fedilink source parent
[–] Corkyskog@sh.itjust.works 1 point 2 years ago A nebula is one exception permalink fedilink source parent
[–] afraid_of_zombies@lemmy.world 1 point 2 years ago I thought that meant black holes permalink fedilink source parent
[–] mmcmonster@lemmy.world 3 points 2 years ago (2 children) How about something simple: Why does gravity feel the same as acceleration? permalink fedilink source parent hideshow 4 child comments replies: [–] applebusch@lemmy.world 11 points 2 years ago You can't feel gravity. What we feel really is acceleration, the acceleration of the earth pushing us up against gravity. permalink fedilink source parent [–] Natanael@slrpnk.net 1 point 2 years ago Because of relativistic frames of reference. Standing on a surface in a gravity well means you're being constantly pushed out of an inertial frame, by not allowing you to follow a geodesic path in spacetime, and the same effect happens under acceleration. https://youtu.be/XRr1kaXKBsU permalink fedilink source parent
[–] applebusch@lemmy.world 11 points 2 years ago You can't feel gravity. What we feel really is acceleration, the acceleration of the earth pushing us up against gravity. permalink fedilink source parent
[–] Natanael@slrpnk.net 1 point 2 years ago Because of relativistic frames of reference. Standing on a surface in a gravity well means you're being constantly pushed out of an inertial frame, by not allowing you to follow a geodesic path in spacetime, and the same effect happens under acceleration. https://youtu.be/XRr1kaXKBsU permalink fedilink source parent
