Some forces are called contact forces because they require objects to touch. One is tension force, found in stretched wires. Another is the force found in a spring. And last are resistive forces: ...

Forgive me for all the posts on ESPN's Sport Science (example: Pulling and Power). I can't help myself. In the short episode recently, Sport Science compared a football player pulling a sled with huge ...

Last week, Stanford researchers revealed that that they had built tiny drones that can open doors. I'm not sure I'm happy about this: How will we keep the robots out of our houses if they can just ...

Hi, everyone, I hope you're well. I'm Mwaksy. And I'm Greg. Hey.Question for you, Greg. Yeah? So I know thatEarth's gravity is always pulling objects downwards.So how come when I tilt this plate with ...