Woodland, a Manhattan Project scientist, came up with the idea for bar codes while running his fingers through the sand, trying to figure out how to put a unique code on every item of merchandise that could be easily scanned by a mechanical device.
There's a vial of a substance he calls KimSim, a material his girlfriend helped create to figure out how to rescue the Spirit rover after it got stuck in a "sand trap" of alien soil on Mars in 2009.