All Questions
4
questions
7
votes
4
answers
514
views
Can you shake a charged object fast enough to create light?
Electromagnetic radiation (a photon) is generated by an oscillating charged particle. Therefore, is it possible to vibrate an object at say 585 THz and create a green light source?
Alternatively: what'...
0
votes
1
answer
51
views
What if static electromagnetic field is turned off? (in vacuum)
Lets assume that there is static electromagnetic field that has $E=17mc^2$ and $p=8mc$.
At some time $t=t_0$, the field is turned off. (e.g. the electric current of coil went to zero by resistance, ...
- 254
5
votes
1
answer
545
views
Why do planets not radiate EM waves in their orbits?
Despite being overall near-netural, I would expect the individual electrons and proton to radiate long EM waves as we accelerate around the Sun or rotate around our poles. Is the acceleration so small ...
- 163
21
votes
4
answers
9k
views
Can lasers lift objects?
I have been fascinated by a very intriguing question - Can lasers push objects up?
Let's say we have a $1000~\text{mW}$ laser and we would like to lift an object of weight $100~\text{g}$.
By ...
- 377