Analyze an Atwood machine with a heavy pulley and heavy rope! This physics tutorial explains acceleration, tension, and forces step by step—ideal for students and physics enthusiasts. #Physics #Atwood ...

What will happen when I put more weight in the buckets?

For the first time, physicists in China have virtually eliminated the friction felt between two surfaces at scales visible to the naked eye. In demonstrating "structural superlubricity," the team, led ...

Researchers mimicked the air-trapping tricks of diving bell spiders to create aluminum that stays afloat—even when punctured ...