1. Speed Traps
Before a road trip, check out thousands of user-submitted speed-trap locations at copspy.com and Njection’s Speed Trap Exchange (njection.com/speedtrap). Soon you’ll be able to upload Njection maps to cellphones for early warnings on the go.

Kansas State University flight instructor Brad Amstutz jumped at the chance to simulate Steve Fossett’s round-the-world GlobalFlyer flight. The challenge presented by Popular Science: Take off at the same time as Fossett, fly the mission as if it were his own, and see if a simulated flight challenges him in the same ways the real flight challenges Fossett. His only rule is that if Fossett has to terminate his flight, Amstutz will also land.