Posted: Wed Oct 27, 2004 6:51 pm
They seem like the sort of thing you'd engage with Trebs at long range... not something to get up close and personal with.
True but never forget that without convection and conduction to remove the heat things cool down in space a slot more slowly than you might expect.Swamp_Thing wrote:Actually, it would dissipate heat just by standing still. Remember folks, it´s verrry verrry cold in space. Like, freezing your nuts into a popsicle kind of cold... brrrrrrrrr
Well, almost. They do generate a little bit of heat, indicating some light fusion in the core of the star, but not nearly as much as a white dwarf, much less a mainline star. (Jupiter and likely most of the "superjovian" planets found outside our solar system also generate a little bit of radiation on their own). And anyway, heat escaping from a star does it by way of EM radiation, including infrared. It doesn't just "cool down". Nothing does, there has to be a process there to take the heat energy away.karajorma wrote:Nope. A brown dwarf has stopped fusion by very early in its life. Brown dwarfs never had the mass to start fusion (or at best sustain it for very long).
Jupiter generates heat by the gravitational compression of its core not due to any nuclear reactions past or present.StratComm wrote:Well, almost. They do generate a little bit of heat, indicating some light fusion in the core of the star, but not nearly as much as a white dwarf, much less a mainline star. (Jupiter and likely most of the "superjovian" planets found outside our solar system also generate a little bit of radiation on their own).karajorma wrote:Nope. A brown dwarf has stopped fusion by very early in its life. Brown dwarfs never had the mass to start fusion (or at best sustain it for very long).
You may have noticed that I got the names of the processes that don't exist in space correct. I never said that brown dwarfs cool down by magic, I simply didn't bother to name the process they do useStratComm wrote:And anyway, heat escaping from a star does it by way of EM radiation, including infrared. It doesn't just "cool down". Nothing does, there has to be a process there to take the heat energy away.