Rocky Gap State Park in Flintstone, Maryland is that rare place where “no service” on your phone feels like a luxury upgrade ...

Master inclined plane problems using the work-energy method in this detailed physics lesson! This video demonstrates how to apply the principles of work and energy to calculate velocities, forces, and ...

Explore the Ball Up/Down Problem from the Feynman Lectures in this clear and engaging physics lesson! This video explains the underlying principles of motion, forces, and energy transfer step by step, ...

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...