Weird effect: Have you ever noticed that screwdrivers in your toolbox can seemingly change form? (Courtesy: iStock/M_a_y_a) As a new decade dawns, you will be thrilled to learn that I have come across ...

During the 2026 Winter Olympics, athletes will leap off ramps, slide across ice and spin through the air. These performances ...

In the Fall I'll be starting teaching again, after a semester away on sabbatical and then enjoying teaching relief during my first semester at Penn. I'll be teaching a course that I truly love, and ...

Practice projectile motion with fully solved physics problem examples. This video walks through step-by-step solutions to help you understand equations, motion components, and problem-solving ...