Of the known fundamental forces, gravity stands out. Rather than being caused by forcecarrying particles jumping between matter particles, gravity can be explained as the bending of space and time. In episode 13 of Subatomic Stories, Fermilab’s Dr. Don Lincoln briefly sketches Einstein’s theory of general relativity (our current theory of gravity) and mentions some tests that prove that it’s right.

Can leptogenesis explain why there’s something instead of nothing?
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Relativity: How people get time dilation wrong.
   • Relativity: how people get time dilat...  

Length contraction: The real explanation
   • Length contraction: the real explanation  

Fermilab physics 101:
https://www.fnal.gov/pub/science/part...

Fermilab home page:
https://fnal.gov



Andromeda image: Adam Evans
Galileo constellation image: ESA J. Huart