Rhett Allain – Medium

Rhett Allain

Could We Really Have Space-Based Solar Power?

I saw this IFLscience article about a Chinese plan to create a space-based solar power system. Of course, I have to add some comments and…

8h ago

Could We Really Have Space-Based Solar Power?

8h ago

Physics Estimate: Could Captain America Survive a Punch From Red Hulk?

There’s no question about it. The upcoming Marvel movie (Captain American: Brave New World) has a scene where Red Hulk fights Cap. It’s in…

Jan 14

Physics Estimate: Could Captain America Survive a Punch From Red Hulk?

Jan 14

For a Truck Tug of War, It’s All About Weight and Friction

It’s not fair to have a tug of war between a Tesla Cybertruck and a Ford F150. Why isn’t it fair? Well, the Cybertruck has a weight of 6843…

Jan 7

For a Truck Tug of War, It’s All About Weight and Friction

Jan 7

Video Analysis: The Good, the Bad and the Ugly

If you record videos for your physics analysis, there are some things you just shouldn’t do. Let’s go over those “wrongs” so you can make a…

Jan 4

Video Analysis: The Good, the Bad and the Ugly

Jan 4

If Velocity Is Relative, Why Isn’t Kinetic Energy Relative?

Maybe that title isn’t super clear. How about I just present a question that seems popular online right now. It goes like this.

Dec 31, 2024

If Velocity Is Relative, Why Isn’t Kinetic Energy Relative?

Dec 31, 2024

The Physics of Jumping: From Humans to The Hulk

This is a great physics problem. Let’s use the work-energy principle to look at the forces on a jumping human. As the title says, after…

Dec 24, 2024

The Physics of Jumping: From Humans to The Hulk

Dec 24, 2024

Free Fall Acceleration on the Moon. Video Analysis of Apollo 16

Is it possible to estimate the value of the gravitational field on the surface of the moon? Yup — and I’m going to do it using a video of…

Dec 21, 2024

Free Fall Acceleration on the Moon. Video Analysis of Apollo 16

Dec 21, 2024

The Math of Cat in the Hat: Would Cat Z Be Too Small to See?

Of course you’ve heard of Cat in the Hat. It’s a classic from Dr. Seuss. Well, there’s more than one book. In the second book (The Cat in…

Dec 18, 2024

The Math of Cat in the Hat: Would Cat Z Be Too Small to See?

Dec 18, 2024

Lagrangian Mechanics: Speed Run Problems (with VPython Animations)

Just for fun, I’m going to set up some physics problems for Lagrangian mechanics. This will give you some situations to practice with.

Dec 13, 2024

Lagrangian Mechanics: Speed Run Problems (with VPython Animations)

Dec 13, 2024

Real World Physics: Estimating the Acceleration of a Train

Sometimes you see stuff in the real world that would just make a fun physics problem. It’s not a textbook problem with a bunch of given…

Dec 7, 2024

Real World Physics: Estimating the Acceleration of a Train

Dec 7, 2024

Rhett Allain

Rhett Allain

Physics faculty, science blogger of all things geek. Technical Consultant for CBS MacGyver and MythBusters. WIRED blogger.

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