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 ...

How wrong we were, because these boffins have developed a way to 3D print a glass-like material using easy-to-source materials and commonly available equipment.

A Texas company — driven by a mission to create faster, better and more affordable housing — is 3D printing homes. It's also working with NASA to 3D print on the Moon. Lesley Stahl reports.