The Government-Surplus Machines Powering a Cutting-Edge Science Museum

Machines fill the floor of the Exploratorium, San Francisco's beloved interactive science museum. Over there is a contraption called Bicycle Legs, in which visitors manipulate air pumps to replicate muscles we use when pedaling (it's trickier than it sounds). A few hundred feet away is a perennial favorite, the Wave… » 3/17/14 10:40am 3/17/14 10:40am