If you ever visit the Lawrence Livermore National Laboratory, chances are you’ll see orange bikes propped up against buildings and/or people cycling around on them. (We once enjoyed seeing an older physicist taking off in a hurry with slacks rolled up, revealing mismatched dress socks).

There are hundreds of these bikes at the lab for employee use and they’re maintained on-site. The bike culture even extends to a cycling group called the Cycletrons (a play on the word cyclotron).