Virtual particles and gravity

Name: Virtual particles and gravity
Uploaded: 2015-11-04
Duration: 9 min 40 s
Channel: Khan Academy
Description: By Sean Hackett I stumbled upon the concept of "virtual particles", something that is not real that can affect something that is real. It is a truly wacky idea, but I started to notice that it matches with many of the things we know about gravity: It travels at the speed of light, it passes through

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By Sean Hackett I stumbled upon the concept of "virtual particles", something that is not real that can affect something that is real. It is a truly wacky idea, but I started to notice that it matches with many of the things we know about gravity: It travels at the speed of light, it passes through all objects, it can arise anywhere in the smallest areas, and it increases as energy increases in a single spot. It was at this point that I came up with the idea that gravity, like the electromagnetic force, could be mediated by virtual photons.