Piyush M. Mehta

2 weeks ago | gizmodo.com | Piyush M. Mehta |George Dvorsky

When you put your hand out the window of a moving car, you feel a force pushing against you called drag. This force opposes a moving vehicle, and it’s part of the reason why your car naturally slows to a stop if you take your foot off the gas pedal. But drag doesn’t just slow down cars.