You can measure the height of a drop with just a rock, a phone, and the gravitational force.
Some lights claim they max out at 900 lumens, but you can use a light sensor to make sure for yourself.
Conservation of angular momentum is the name of the game.
What can we learn from the video of the simultaneous landings?
It's time to do some physics-based forensics.
Does Ant-Man’s shrink ray let objects keep their mass as they get tiny?
Where do you get a giant plane-sized treadmill that goes 100 mph? Good question. I'm going to answer a different one.
Movies and TV shows often assume that no air = no gravity. Here's the way it actually works.
Enough to charge two iPhones—or flip a car.
Bigger isn't always better—but when it comes to drones, it kind of is.