Radioactive material gets a bad rap, what with radiation and fallout and nuclear waste and all. But it offers some practical uses. One of the coolest (OK, maybe the coolest) is using radioactive ...

For the basic model for exponential decay, there is a decay constant, which is related to the half-life. The decay constant multiplied by the number of particles should give the decay rate per second ...

At the Large Hadron Collider (LHC), physicists accelerate particles to the highest energies and in the greatest numbers that humanity has ever achieved. We smash them together at greater than ...