What if the U.S. Air Force had a flying nuclear-powered carrier? In the 1960s, Lockheed proposed just that with the CL-1201—a ...

To make an ester, a hydrogen atom must be removed from the hydroxyl group (–OH) of the alcohol. The –OH portion of the acid's carboxyl group must also be removed. The hydrogren atom and the ...

He’s put out a useful new video on making linkages in paper parts. In this short video, [Federico] shows us how to make a paper version of the leg mechanism for [Theo Jansen]’s classic ...