Footage shows masked neo-Nazis marching through the streets of Columbus, Ohio, on Saturday (16/11) while carrying swastika ...

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 ...