Robots run amok have occasionally maimed or killed industrial workers, giving German researchers cause to wonder about a future where humans host robots in every home. In their study, the BBC reports, a robot arm was programmed to strike, stab and puncture using an array of household tools that included a steak knife, kitchen knife, scissors and screwdriver. Stabs and cuts inflicted on a silicone lump and the leg from a dead pig were deemed potentially lethal.
For all the government conspiracy militia nuts out there, I've got some good news and some bad news. The good news is that there is no such thing as silent, stealth black helicopters. The bad news is that, thanks to Eurocopter's noise-canceling Blue Edge rotor blades, there soon will be.
Wind turbines can be a radar operator's worst nightmare. By scrambling radar waves as blades spin faster or slower, large wind farms are sometimes capable of erasing airplanes from radar screens completely. But a Danish wind turbine company and a UK defense contractor may have found a solution by unveiling the first "stealth" wind-turbine blade last month.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.