Archive for the ‘Science / Dot Physics’ Category
March 14th, 2019
On this day of numerical glory, get to know pi in an unusual way: using the elastic collision of two different masses and a wall.
March 11th, 2019
LEDs generate light, which is why they're in our screens. But if you instead shine a light on an LED, you can generate current to run a small device.
March 6th, 2019
Ultimately you get a differential equation that you can solve with a bit of code I wrote for you.
February 28th, 2019
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.
February 26th, 2019
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.
February 22nd, 2019
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.
February 20th, 2019
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.
February 14th, 2019
This electromagnetic catapult flings airplanes into the sky (and giant sleds into the water). Here's how to calculate the projectile motion involved.
February 12th, 2019
In the movie *Gravity*, Sandra Bullock uses a fire extinguisher to maneuver in space. Controlling it is much, much harder than it looks.
February 6th, 2019
If you have a drone, you can use this trick to figure out the size of an object captured on camera.