Beth Harris, a Raleigh mom and long-time science educator, returns with a fun and easy experiment where kids can test their strength with friction. Beth Harris, a Raleigh mom and long-time science ...

Say we consider a simple experiment of balancing a wooden rod on two fingers. The finger on the left, (1), will remain stationary, whereas the finger on the right, (2), will be moved toward the left.

Beth Harris is back with another fun and easy experiment that you can do with things you probably have around the house. Beth Harris is back with another fun and easy experiment that you can do with ...

I learned to respect friction, as a phenomenon with many nuances, when I was a graduate student. One day, while teaching a problem session in elementary mechanics, I unwisely invented a new problem to ...