Half-Life Calculator
Juicy Satsuma Half-life calculator
Half-life is the time it takes for something to fall to half of its value. It's commonly used to describe radioactive decay but has many other uses. It can be used to predict time from a drug to leave a body, bugs being removed from a peice of software, fluid leaving a tube, atmospheric pressure, transfer of heat, consumption of a reutement fund, routing protocol performance, time to complete a binary search, and anything else which decays exponentially.