Here’s How Fast That Jumping Tesla Was Traveling
A Tesla was caught on video going airborne after blasting over railroad tracks. Here's how to estimate its speed.
How Big Can A Solar-Powered Drone Be?
Students in Singapore built a quadcopter that runs on solar power. Here's how to build your own.
The Physics of Falling Into a Black Hole
This week, newspapers reported that a man had fallen into an art installation consisting of an 8-foot-deep circular hole painted black. It's kinda not his fault.
How Much Energy Can You Store in a Stack of Cement Blocks?
It's not a trick question: You can make a battery out of concrete by storing gravitational potential energy.
How to Show That the Earth Orbits the Sun
With simple tools, there are three things you can observe to support the heliocentric model of the solar system.
Three Science Experiments You Can Do With Your Phone
Your phone can measure acceleration, magnetic field, sound, location, and maybe more—which turns it into a portable data collector for science projects.
The Physics of Catching a Gnarly 80-Foot-Tall Wave
Surf's up, dude.
Watch a Harlem Globetrotter Sink a Shot from a Plane
Really, this is a classic projectile motion physics problem.
You Can Learn Everything Online Except for the Things You Can’t
College is like a chocolate chip cookie, and courses—online or not—are the chocolate chips.
How Much Power Does It Take to Fly in a Real-Life Jet Suit?
To hover a human over the ground, you need some serious engineering—and the momentum principle.