I Love Physics!!

Because it just works! I'm making this global climate model, and by simply multiplying the solar constant by 1 minus albedo to calculate heat absorbtion, using the Stefan-Boltzmann Law to compute heat radiation, and figuring the temperature by average internal energy of an ideal gas, one can predict the steady-state atmospheric temperature of the earth to surprising accuracy. It's pretty much the most simplistic model imaginable, but it almost works.