# How is this derived?

1. ### jairusgarcia

19
R=$$\epsilon$$$$\sigma$$T$$^{4}$$

$$\epsilon$$ --> emmisivity
$$\sigma$$ --> Steffan's constant
T[ --> Temp (in Kelvin)

should i start with steffan-boltzmann's equation (since its the nearest formula)?

thanks... ^_^

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3. ### CompuChip

4,299
Actually, I think that already is the Stefan-Boltzmann law; if you start from it you're done.

There is a derivation here, though generally I always check derivations on Wikipedia before I trust them

4. ### jairusgarcia

19
oh... im sorry. i feel noobish! haha!

5. ### CompuChip

4,299
Sucks when the answer was staring you right in the face huh?
Don't worry, happens to me all the time

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