Dot Physics – Page 11 – Esoteric news

You Think You Know Grades? Here’s How They Really Work

You Think You Know Grades? Here’s How They Really Work

When you grade on a curve, you make assumptions about the student population. When you don't, you make an assumption about the test. The post You Think You Know Grades? Here’s How They Really Work appeared first on WIRED.

Iron Fist Can Totally Break His Fall With a Pole. Physics Says So

Iron Fist Can Totally Break His Fall With a Pole. Physics Says So

In his new show, the superhero catches himself on a pole. Let's look at the stopping force and acceleration involved. The post Iron Fist Can Totally Break His Fall With a Pole. Physics Says So appeared first on WIRED.

Got a Sock Stuck in Your Vacuum? It’s Time for Some Physics

Got a Sock Stuck in Your Vacuum? It’s Time for Some Physics

What happens when you get a sock stuck in your vacuum cleaner? The motor sounds like it's working harder, but is it? The post Got a Sock Stuck in Your Vacuum? It's Time for Some Physics appeared first on WIRED.

Hey! You Can Find Pi With a Random Walk. Here’s How

Hey! You Can Find Pi With a Random Walk. Here’s How

Yay for pi, the hidden ninja of the physical world. The post Hey! You Can Find Pi With a Random Walk. Here's How appeared first on WIRED.

Let’s Calculate Pi on a Raspberry Pi to Celebrate Pi Day

Let’s Calculate Pi on a Raspberry Pi to Celebrate Pi Day

Looking for something fun to do on Pi Day? Here. Try an interactive pi calculation using the Raspberry Pi. The post Let's Calculate Pi on a Raspberry Pi to Celebrate Pi Day appeared first on WIRED.

How Can These Cops Run Up a Wall on a Pole? Physics!

How Can These Cops Run Up a Wall on a Pole? Physics!

In this crazy video, two guys use a long pole to help another guy up a wall. Here's the physics that makes this work. The post How Can These Cops Run Up a Wall on a Pole? Physics! appeared first on WIRED.

You Physics Teachers Really Ought to Teach Numerical Calculations

You Physics Teachers Really Ought to Teach Numerical Calculations

Numerical calculations are such an integral part of real world physics that it would be wrong to not include them in the intro courses. The post You Physics Teachers Really Ought to Teach Numerical Calculations appeared first on WIRED.

Let’s Do the Physics Of Knocking an Asteroid Into the Sun

Let’s Do the Physics Of Knocking an Asteroid Into the Sun

In the show The Expanse, people try using a spaceship to direct an asteroid into the sun. Would this even work? The post Let's Do the Physics Of Knocking an Asteroid Into the Sun appeared first on WIRED.

February 23, 2017

Forget Weather Apps: Measure the Wind Yourself With an Old Electric Motor

Forget Weather Apps: Measure the Wind Yourself With an Old Electric Motor

You can build an anemometer with an electric motor and a fan blade. Here's how. The post Forget Weather Apps: Measure the Wind Yourself With an Old Electric Motor appeared first on WIRED.

February 20, 2017

Flying at Light Speed Is Pretty Much Impossible—Unless You’re Han Solo

Flying at Light Speed Is Pretty Much Impossible—Unless You’re Han Solo

In Star Wars: The Force Awakens, Han needs crazy fast reaction time to get inside the Starkiller shields without crashing into the planet. The post Flying at Light Speed Is Pretty Much Impossible—Unless You're Han Solo appeared first on WIRED.