2 ms·
> If it could heat up, Dark Matter wouldn't be dark. I don't think this is correct at all. A system doesn't have to interact with EM to be thermodynamic. If yo
by bowsamic 3y ago
> If it could heat up, Dark Matter wouldn't be dark.
I don't think this is correct at all. A system doesn't have to interact with EM to be thermodynamic. If you can define a temperature for it and there is the possibility for energy transfer, then it can heat up
- ninkendo 3y ago> there is the possibility for energy transfer I think this is where the debate is. I’m not a physicist but my understanding of the current dark matter models is that it doesn’t interact with itself in a way that could be thought of as “energy transfer” (ie. like particles that collide), but only gravitationally. This would mean there’s no real way for a dark matter “particle” to transfer momentum to another particle, and thus no real way for “heat” to exist as such.
- bowsamic 3y agoGravity can transfer energy. For example gravitational waves transfer energy. They can be used to boil a kettle of strong enough