Physics Girl
What is Dark Matter? A Mystery of the Universe
You've probably heard the term Dark Matter, but what is it, and how do we know it exists?
Physics Girl
Fun with Vortex Rings in the Pool
Create half-ring vortices in a pool by sliding a plate through water and adding food coloring to the ends.
Physics Girl
How to Make a Hurricane on a Bubble
How do scientists mimic the physics of a hurricane on the surface of a bubble? What other types of crazy research are bubbles used for? Learn how to create colorful vortices on a bubble in your kitchen!
Physics Girl
How to Make a Cloud in Your Mouth
Learn how to make a wispy cloud come out of your mouth, even when it's not cold out. Like any awesome trick, physics is to thank for the mouth cloud. This simple and fun demonstration can be used to explain the cloud in a bottle...