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The sun is a deadly laser... (files.catbox.moe)

submitted 2 months ago by Zuriz@sh.itjust.works to c/science_memes@mander.xyz

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cross-posted from: https://feddit.uk/post/44126927

Goldilocks

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[-] Techlos@lemmy.dbzer0.com 2 points 2 months ago

Can't ignore bosons; photon wavelength is a measure of temperature too.

Space has a temperature, which is based on the average of incoming radiation through that space; i.e. the thermal equilibrium to emit as much energy as is absorbed by a theoretical perfectly thermally conductive black body at that point in space.

Based off CMB radiation, space on average is a little over 2.7 kelvin. It'll be hotter near stars, but the void dwarfs matter on a cosmic scale

[-] sun_is_ra@sh.itjust.works 1 points 2 months ago

TIL.

I guess it depends on definition of the word "temperature".

I was referring to the classical definition

In classical thermodynamics and kinetic theory, temperature reflects the average kinetic energy of the particles in a system, providing a quantitative measure of how energy is distributed among microscopic degrees of freedom.

https://en.wikipedia.org/wiki/Temperature