This practical is adapted from a worksheet posted by Mark Headlee (UWC USA) on the OCC.When you pour a glass of beer the gas in the beer forms bubbles (called a head), when you are going to drink the beer you try to minimise this effect but in this experiment you will make it as much as possible by pouring fast and using warm beer. The bubbles burst randomly so rather like the decay of radioactive nuclei the rate of...