Articles by

Rhett Allain

Why Can’t a Magnet-Propelled Truck Actually Work?

Finally, we have the crane itself. I left off some of the unimportant forces here—the most critical...

What Is the Ideal Gas Law?

That might seem like a large volume, but it's not. It's almost half of a liter, so...

Just How Hard Is Thor’s Battle Chain Workout?

Since the velocity is defined as the time-rate of change of position, the slope of this plot...

How to Make a Microphone … From a Face Mask

Suppose this parallel plate capacitor is connected to a 9-volt battery. A volt is a measure of...

How Realistic Is the Celestial Navigation in Moon Knight?

Our planet also changes positions. In six months, the Earth will go from one side of the...

Could Anyone Do Luke’s Plank Flip From ‘Return of the Jedi’?

It’s May 4, so happy Star Wars Day—may the fourth be with you!One of the iconic scenes...

What Actually Happens If You Shoot a Ball at a Newton’s Cradle?

So, here’s the obvious next question: Is kinetic energy also conserved, just like momentum is conserved? The...

Why Bigger Things Don’t Always Fall Faster

If there's one thing that you should learn from physics, it's that big things are not like...