Physics

Make your own Magdeburg Hemispheres

Make your own Magdeburg Hemispheres

Way back in the 17th Century German scientist Otto von Guericke demonstrated the power of vacuum forming by joining two steel half domes that two teams of horses pulling in opposite directions could not pull apart. In this video, MAKE Contributing Editor William Gurstelle recreates the experiment in ReMaking History with two cake pans. And you can, too, in this easy to follow experiment.

How-To: Glass Klein Bottle

How-To: Glass Klein Bottle

Dutch glass crasftman Ramon Vink runs a studio called Poelgeest Glass. Using modern lampworking techniques and tools, he makes scientific apparatus and artistic pieces like this Klein bottle, the forming of which he has documented in a series of five YouTube videos. The videos themselves are pretty raw, with minimal post-production and no narration, but taken altogether they do a good job of documenting not just the general process of forming a Klein bottle from stock glass tube, but the specific tools and skilled manipulations required for each operation.