News tagged with gravitational force

NA64 hunts the mysterious dark photon

One of the biggest puzzles in physics is that eighty-five percent of the matter in our universe is "dark": it does not interact with the photons of the conventional electromagnetic force and is therefore invisible to our ...

dateNov 25, 2016 in General Physics
shares1453 comments 21

SLAC theorist explains quantum gravity

Our world is ruled by four fundamental forces: the gravitational pull of massive objects, the electromagnetic interaction between electric charges, the strong nuclear interaction holding atomic nuclei together and the weak ...

dateNov 19, 2015 in Quantum Physics
shares346 comments 85

Explainer: What is mass?

When it comes to electrons, Higgs bosons or photons, they don't have much going for them. They possess spin, charge, mass and … that's about it.

dateNov 12, 2015 in General Physics
shares72 comments 29