#### Newton's Law of Cooling

The temperature as a function of time for an object is given by Newton's Law of Cooling (this is actually just a good approximation of what happens).

T(t) = T_{env} + (T_{init} - T_{env})*e^{-λt}

where T_{env} is the temperature of the surrounding environment,

T_{init} is the initial temperature of the object,

and λ is a measure of how quickly the temperature change occurs.