Nowadays everybody knows there are nine planets in our solar system, but that information was hard won.
A skydiver's body is in a delicate balance. Gravity tugs her downward with a constant, relentless force, while air resistance pushes her upward.
Every skydiver experiences two different forces: the tug of gravity and the upward push of air resistance.
When a kicker kicks the football down field, what is he calculating?
You stomp at an ant crawling along the baseboard, and it escapes by climbing the wall. How do insects deal with gravity?
Black holes were always the most dangerous thing when traveling through space in science fiction shows. What are black holes and how do they form?
Galileo's classic physics experiment looked at using a ramp!
Yes, the classic physics question is visited again. A Moment of Science learns about mass and gravity.
The physics of driving and falling (we hope this never happens to you!)
What happens to helium balloons in a car when the car stops suddenly?