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Results tagged with light
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user 2800
For questions concerning electromagnetic radiation in the visible spectrum.
44
votes
Is it possible to create light that imparts a greater proportion of its energy as momentum r...
A shorter wavelength of light has both more energy and more momentum in equal proportions. … A perfect blackbody will absorb all of the momentum of a beam of light, and all of the energy as heat. …
- 42.7k
3
votes
Accepted
In Search of a Super-Bright, Super-Stable Star
You want a trio of helium dwarves.
At the moment, such stars are theoretical. The universe hasn't existed long enough for any to form naturally. They could exist in the very distant future, or be con …
- 42.7k
10
votes
Why would bioluminescence evolve in a Europa-like world?
And as soon as any organisms can detect light for any of those reasons, there is an incentive for other organisms to produce light on purpose to manipulate them. … So once any sort of light-based signalling system is in place, it can radiate into forms that use a wide range of frequencies for different purposes, regardless of whether that light exists naturally in …
- 42.7k
3
votes
Accepted
How to make a planet with differential gravity and constant daylight
Another option might be to make the world a rogue planet near an active galactic nucleus (quasar), which could provide habitable levels of insolation at several light years distance, with millenia-long …
- 42.7k