This Top Tips explores how spiral retaining rings, like Spirolox, offer engineers a reliable, easy-to-install alternative to ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

The earliest evidence of the invention of the wheel pops up around 5,500 years ago in Uruk, ancient Mesopotamia, which has to go down as the most innovative society in human history. These guys, best ...