Let's be clear: You shouldn't try to take over the world. However, if you are going to do it anyway, Ryan North's new book How to Take Over the World does have some interesting ideas about how to gain ...

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 volume of a 3D shape is the amount of space inside it. Volume is measured in cubic units such as cm³ and m³. The volume, or capacity, of liquids is measured in millilitres or litres. The surface ...