Skip to main content

All Questions

2 votes
2 answers
127 views

Mutual gravitational acceleration (or deflection) of light beams as a function of the angle between them

Given Einstein's famous equivalence between energy and mass, $E=mc^2$, a light beam with power, $P$, has an energy per unit length of $P/c$ and an equivalent mass per unit length of $P/c^3$. A short ...
Roger Wood's user avatar
  • 2,403
0 votes
1 answer
735 views

Can we use light to generate thrust (similar to light pressure)?

Photons are the carriers of the electromagnetic force right? (whatever that means--I can't visualize how a particle carries a force, for me a force is something immaterial) Can we create a powerful ...
PedroD's user avatar
  • 291
4 votes
1 answer
269 views

If light is affected by gravity, does that mean gravity affects electrical&magnetic fields too?

Since we observed that masses indeed bend the light, and since we consider light to be composed of electrical and magnetic fields, does that mean a single point charge will result with bent electrical ...
ozgeneral's user avatar
  • 563
3 votes
1 answer
477 views

Can a charged black hole interact via electromagnetism? [duplicate]

Possible Duplicate: Detection of the Electric Charge of a Black Hole Light cannot escape from a black hole. However light is also interpreted as the carrier of the electromagnetic force. So how ...
asmaier's user avatar
  • 9,910