Dot Physics – Page 13 – Esoteric news

January 10, 2017

Let’s Learn Some Physics Playing With Compound Pulleys

Humans use compound pulleys all the time. The are based on the work-energy principle. Here is a physics based explanation of this type of simple machine. The post Let’s Learn Some Physics Playing With Compound Pulleys appeared first on WIRED.

January 6, 2017

Let’s Tackle a Classic, Wicked Physics Problem. It’ll Be Fun—Promise

Here is a numerical calculation to determine the path between two points that gives the quickest time - the Brachistochrone problem. The post Let's Tackle a Classic, Wicked Physics Problem. It'll Be Fun—Promise appeared first on WIRED.

January 3, 2017

How Long Would It Take to Scale a Mountain in a Human-Powered Chairlift?

How much power per person does a traditional chairlift need? What are some other options if we wanted to do something cool? The post How Long Would It Take to Scale a Mountain in a Human-Powered Chairlift? appeared first on WIRED.

December 24, 2016

WIRED’s Guide to Turning Your Kids Into Masterful Makers

Everyone should have some practice creating things rather than just consuming things. Here are some ideas to get you started with making. The post WIRED’s Guide to Turning Your Kids Into Masterful Makers appeared first on WIRED.

December 21, 2016

Let’s-a-Go: The Physics of Jumping in Super Mario Run

When Mario jumps in Super Mario Run, is it realistic or not? What is the acceleration of Mario? How big is he? The post Let's-a-Go: The Physics of Jumping in Super Mario Run appeared first on WIRED.

December 21, 2016

Here’s How Much That Lego Brick You Stepped on Is Worth

Here is a sign that shows a quarter pound of Lego for $8.99. What does this say about the distribution of Lego blocks? Density included. The post Here’s How Much That Lego Brick You Stepped on Is Worth appeared first on WIRED.

December 14, 2016

It’s Not an Impossible Fish Tank, It’s Just Physics

This awesome fish tank trick shows an inverted glass with water higher than the water level of the fish tank. How does this work? The post It's Not an Impossible Fish Tank, It's Just Physics appeared first on WIRED.

December 9, 2016

The Physics of Spider-Man’s New Web Wings

In the latest trailer from Spider-Man: Homecoming, we see that he now has wings on his suit. Here is a rough model of him falling with wings. The post The Physics of Spider-Man's New Web Wings appeared first on WIRED.

December 7, 2016

How to Make UV Light Out of Your Phone’s LED Flash

In a recent episode of MacGyver, an improvised ultraviolet light was created from an LED. How would this work and what is a blacklight? The post How to Make UV Light Out of Your Phone's LED Flash appeared first on WIRED.

December 1, 2016

Pull a Car From a Ditch With the Super-Strength of Physics

If you ever need to pull a heavy object with a rope, there is a simple physics trick that can give you greater tension. The post Pull a Car From a Ditch With the Super-Strength of Physics appeared first on WIRED.