Does Gravity Affect Light? 🤔 #physics #education #science #einstein

Einstein argued that gravity isn’t even a force at all when he came up with general relativity. It’s something much more complex. After all, how can a super-massive black hole swallow light if light has no mass? That’s because technically gravity affects everything with energy. Einstein proved all objects with mass contain significant energy using his famous E=mc squared equation, no matter how lazy it is... So when we have massive objects like planets flying through space, they bend an invisible field called spacetime which we experience as gravity. As physicist John Wheeler put it: “Matter tells spacetime where to curve and spacetime tells matter how to move”

If an object is massive enough, like our sun, this curve in spacetime can even bend beams of light! In 1919, a scientist managed to photograph a star that was actually located behind the sun as it’s mass has bent the light around it! Since then we began to prove that when a mass is as big and dense as a black hole, a sort of gravitational whirlpool forms in spacetime that not even light can escape.

[The_last_prime]

very nicely done kudos, all the info is also well researched.

[suhooooooosi]

Why did Einstein use a
flat surface to show how gravity works? so being flat means 2d, then space is 2d?