Author: Rhett Allain

Take some simple measurements, add a dash of algebra, and you basically have a way to measure an unknown mass.

The probe just broke the record to become the fastest human-made object, relative to the sun. Here's what that record really means.

New flying robots can pull loads that appear far too heavy for their tiny size. Here's the physics of how they cheat friction with their tiny claws and gecko-like grippers.

Glow sticks and retroreflectors can help your kids be seen on Halloween night. Here's how they work.

There's more to it than just optimizing gas mileage. Our calculator will help you figure out the most cost-effective driving speed, personalized to your commute, wages, and fuel price.

These are the three key things that any person should know about the nature of science.

If we ever move off-planet, we'll have to get more serious about distinguishing between 'mass' and 'weight.'

Estimating answers to everyday physics problems is an art form. Here's one tip: learn to ignore what you don't know.

If you care about the momentum principle, this should bother you.

In a collision, a car's airbag has a tiny fraction of a second in which to inflate—which is why airbags use explosives.