The Physics of the N95 Face Mask
You’ve seen them a million times. You might be wearing one right now. But do you know how they work to block a potentially virus-carrying respiratory blob?
How to Ace Physics Class (Even if You Don’t Ace Physics)
It’s back-to-school season, so here are some tips on getting the most out of college science courses.
How Pi Keeps Train Wheels on Track
Happy 3/14! Here's how this mathematical constant keeps train cars from flying off their tracks during turns.
How to Use Your Speedometer to Figure Out Where Your Car Is
You should never drive in a car with no windows. But if you ever do find yourself in one, you can use physics to get your bearings.
What Even Is Friction, Anyway?
You might think of it as the force that slows things down, but you literally couldn't get anywhere without it.
Here’s How You Can ‘See’ Molecules—on a Whole ‘Nother Planet
Scientists picked up signs of phosphene on Venus by using a technique called rotational spectroscopy. It works like this.
The Cool Physics of a Supersonic Baseball
For one thing, let's build a model of air drag and how it affects the ball differently when it's traveling faster and slower than the speed of sound.
The Basic Physics of the Kilogram’s Fancy New Definition
The kilogram is now based on energy changes in the quantum world rather than a physical object. Here's how that works.
The Physics of Mississippi Flood Control
Louisiana's Bonnet Carré Spillway diverts some of the Mississippi's floodwaters. But it also offers up a wealth of good physics questions.
Why a Golf Ball Compresses Like a Spring—Until It Shatters
An experiment with a paper clip reveals both its elastic and plastic properties, a distinction that's key to how any material compresses or deforms.