Why a Tennis Ball Goes Flying When Bounced on a Basketball
When you bounce a tennis ball off a moving basketball, the tennis ball goes careening off at high speed. Here's why that happens.
Flummoxed by Force and Motion? Try This Physics Experiment
Physics class can get painfully abstract. But you can collect your own data to see Newton's second law in action.
How to Measure Things That Are Astronomically Far Away
Light-years, parsecs and more: these are the units for describing distances between planets and other astronomical objects.
The Physics of a Star Wars Bomber Dropping Bombs in Space
The Empire Strikes Back brought us the TIE bomber—and new physics questions to try to solve.
How to Easily Locate the Accelerometer in an iPhone
Don't take apart your phone! Circular motion, an app to record sensor data, and some physics is all you need.
Yes, You Can Boil Water at Room Temperature. Here’s How
Everything you ever wanted to know about boiling water, vapor pressure, and cooking at altitude.
Fall Is Here! Time to Learn the Physics of… Falling
Stuff is constantly falling—off tables, out of bags, from the sky. Let's explore the science of all things tumbling downward.
Fall Is Here! Time to Learn the Physics of… Falling
Stuff is constantly falling—off tables, out of bags, from the sky. Let's explore the science of all things tumbling downward.
Here’s How Fast That Jumping Tesla Was Traveling
A Tesla was caught on video going airborne after blasting over railroad tracks. Here's how to estimate its speed.
How Big Can A Solar-Powered Drone Be?
Students in Singapore built a quadcopter that runs on solar power. Here's how to build your own.