How to Make a Microphone … From a Face Mask

The results won’t be high fidelity, but you can definitely turn sound into electric signals using…

How Realistic Is the Celestial Navigation in Moon Knight?

You can definitely use the stars as your guide. But let’s check whether a scene from…

Could Anyone Do Luke’s Plank Flip From ‘Return of the Jedi’?

Let’s calculate whether the lightsaber-catching, Sarlacc-pit-avoiding maneuver can be done by mere mortals or requires help…

What Actually Happens If You Shoot a Ball at a Newton’s Cradle?

In a recent video, the Slo Mo Guys fired at the clicky-clacky desk toy with a…

Why Bigger Things Don’t Always Fall Faster

Is there really a difference in what happens if you tip over something large versus something…

Is There an Optimal Driving Speed that Saves Gas—and Money?

Gasoline prices are over $4 a gallon at the pump. If you want to save some…

Can You Make a Hollow Metal Sphere So Big That It Floats?

Theoretically, yes. But it’s not terribly practical. And it might mean you’re a supervillain.

How Much Pi Do You Really Need?

To celebrate Pi Day, we look at applications—from NASA to cars—that prove you can have too…

What It Would Take to Bring the ISS Back to Earth in One Piece

NASA plans to deorbit the International Space Station in 2031 by crashing it into the ocean.…

The Greatest Physics Demo of All Time Happened on the Moon

This is the true story of a hammer, a feather, the Apollo 15 mission, and the…