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Category: Science / Dot Physics

Posted on March 6, 2019March 6, 2019

Track a Tank Shell With a Mirror and Polar Coordinates

Ultimately you get a differential equation that you can solve with a bit of code I wrote for you.
Posted on February 28, 2019February 28, 2019

How Many Times Do You Have to Slap a Chicken to Cook It?

While you could technically cook a chicken by slapping it, as proposed by a recent meme, you might also cook your hand. We crunch the numbers.
Posted on February 26, 2019February 26, 2019

Calculate How Fast Quicksilver Is Moving in *X-Men Apocalypse*

To save two dozen people from an exploding building, Quicksilver must have moved at roughly 280 km/s—if you believe speed is in fact his superpower.
Posted on February 22, 2019February 22, 2019

Estimate the Friction Coefficient in That Massive Nascar Pile-Up

A crash knocked 21 cars out of the Daytona 500. But good news: Everyone walked away, and the video makes for a cool physics problem.
Posted on February 20, 2019February 20, 2019

Don’t Toss That Busted Toy Just Yet—Grab a Multimeter

This essential tool lets you measure the electric current and voltage of a circuit. Here's what you need to know to use it correctly.
Posted on February 14, 2019February 14, 2019

Launch an 80,000-Pound Sled off an Aircraft Carrier? Sure!

This electromagnetic catapult flings airplanes into the sky (and giant sleds into the water). Here's how to calculate the projectile motion involved.
Posted on February 12, 2019February 12, 2019

Sorry, Sandra Bullock: A Fire Extinguisher Is a Lousy Thruster

In the movie *Gravity*, Sandra Bullock uses a fire extinguisher to maneuver in space. Controlling it is much, much harder than it looks.
Posted on February 6, 2019February 5, 2019

How to Figure Out a Drone’s Angular Field of View

If you have a drone, you can use this trick to figure out the size of an object captured on camera.
Posted on February 4, 2019February 2, 2019

The Way Superman Picks Up a Building Is a Physics Travesty

Superman is more than welcome to use his superpowers to pick up a building. But we really need to talk about his technique.
Posted on January 31, 2019January 31, 2019

The Very Vortex-y Science of Making Snow From Boiling Water

Turning hot water into snow might as well be the official sport of the polar vortex. Here's what's those water molecules are up to.

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