They say ideas are a dime a dozen, but only a few act on them by building something, and even fewer actually take the steps to file a patent but this doesn’t mean those ideas are good. Here are 5 (temporarily) patented ideas…

Autonomous cars are becoming a very real thing but if it came down to it and the car was put in a position where it had to kill either the driver or a pedestrian, who does it choose? That's the tunnel problem.

Polygraph machines, also known as lie detectors, are used a lot to determine if someone is lying. The strange thing is they don't actually work.

Did NASA really spend billions on a space pen? Find out the true story behind the space pen and another pen that quite literally saved the moon landing.