I don't normally watch many NASCAR races, but I do come across some NASCAR videos online. Sometimes these clips become the basis of a great physics problem. In this case, it's a 21-car crash at the ...

In today's episode, Shini tells us about Static and Kinetic friction. Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it ...

To gain more confidence with FEA, it’s a good idea to first solve simple problems with pencil and paper. Many less-experienced users of finite-element-analysis (FEA) software often have no clue if the ...