Much to say about nothing The discovery of vacuum was strangely pivotal in the history of science and technology. From steam engines to electronics, we talk about the power of nothing. Here’s a video of the chain fountain in action. The Chain Fountain Here’s a site, including a couple of videos, that attempts to explain how the chain fountain works. Physicists explain 'gravity-defying' chain trick Here’s a site on the history of the vacuum pump. The history of the vacuum pump And here’s a page on the invention of the steam engine. Who Invented the Steam Engine?