The Magnetohydrodynamic Drive Is Real—and You Can Build One
All you need is a battery, a magnet, and some wires to build your own quasi-fictional submarine drive.
The Physics of the 69-Degree Intersection That Kills Cyclists in the UK
Set up an intersection the wrong way, and an oncoming car can be completely blind to an approaching biker—with fatal consequences.
Can an Arrow Fired Straight Up Fall Fast Enough to Kill You?
If you shoot an arrow straight up into the air, could it fall down fast enough to kill you? Physics can tell.
‘Mortal Engines’ Trailer: The Physics of Those Giant Driving Cities
You can't see a giant rolling version of London and not calculate the heck out of it.
The Physics of Plastic Sheets … and Their Invisible Force Fields?
Can fast-moving plastic sheets create an invisible wall? Maybe, maybe not. But you can definitely explore the electric effects of plastic on your own.
Calculating the Power Usage of LED vs. Incandescent Christmas Lights
Let's calculate how much energy your LEDs suck up relative to old-school incandescents.
Build a Thermoelectric Generator, Like the Ones That Power Deep Space Missions
Thermoelectric generators with no moving parts are small and reliable—which makes them perfect for spacecraft like Voyager and Cassini.
How to Run Up a Wall—With Physics!
This crazy parkour move, where a guy bounds up between two walls by jumping from one to the other, is based on the momentum principle and friction.
The Physics of Projectile Motion With a Clicky Pen
The spring inside a clicky pen is a perfect way to learn about projectile motion.
The Physics of the Invisible Box Challenge
There’s no fooling gravity—but this trick makes it look like you can.