How Can Soccer Players Bend Their Shots in Midair?
As World Cup action kicks off, we look at the physics of the beautiful game.
Category: Dot Physics
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You Can Approximate Pi by Dropping Needles on the Floor
Who needs a supercomputer when you can calculate pi with a box of sewing needles?
How to Use Physics to Escape an Ice Bowl
Here are three smart tricks, based on an understanding of frictional forces, to beat a slippery slope.
Could You Use a Rowboat to Walk on the Seafloor Like Jack Sparrow?
In Pirates of the Caribbean, Jack and Will use an overturned dinghy to hold air underwater. Madness or brilliance?
What Is the Electric Constant and Why Should You Care?
The force between electrical charges is kind of a big deal—without it, the universe would be a primordial soup and you would not exist. That force is determined by the electric constant.
AC or DC: Which Is Better?
Your gadgets run on direct current, but the electricity in your home is alternating current. What’s up with that?
Einstein Showed That Time Is Relative. But … Why Is It?
The mind-bending concept of time dilation results from a seemingly harmless assumption—that the speed of light is the same for all observers.