R=[tex]\epsilon[/tex][tex]\sigma[/tex]T[tex]^{4}[/tex] [tex]\epsilon[/tex] --> emmisivity [tex]\sigma[/tex] --> Steffan's constant T[ --> Temp (in Kelvin) should i start with steffan-boltzmann's equation (since its the nearest formula)? thanks... ^_^
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