On this day in 1969, the automatic teller machine as we know it debuted at a Chemical Bank branch in Rockville Center, NY. The idea of using machines instead of live tellers to dispense cash wasn’t a new one. Barclays Bank in the UK installed a machine that handled out pounds in 1967, but it required printed vouchers that bank customers had to obtain in advance from human bank employees, which kind of defeated the point. Chemical Bank’s machine—built by Docutel, a Dallas automated baggage-handling equipment firm—was the first to allow customers to log in using personal bank cards with magnetized strips on them. The first version could only give out money, but in 1971, a more advanced ATM allowed customers to check their balances and perform other functions. By 1980, ATMs had proliferated across the nation, and eventually they started showing up not just outside banks but in convenience stores and other places. Today, there are an estimated one million ATMs around the world, and a new one is installed every five minutes. The average American uses one six to eight times a month, which is probably why most of us are broke all the time. And with that thought, here are some other science stories of the day.