University of Pennsylvania Quadrotor
Have a look at this crazy University of Pennsylvania Quadrotor, just think about the issues getting stable flight not to mention the flight recovery this Quadrotor is capable of. Via: Make and Engadget
September 20, 2010
1.25kJ Coilgun
Jason sent in his latest creation, it’s a 1.25kJ Coilgun. Check out the cool video of it below, you will get a good overview of how it works and see it in action. I like the fact that he is re-using some parts in the build like the cell phone charger for some of the low voltage circuit needs. By the looks of the damage caused by the gun I