Tag Archives: gravity

Scavenger Hack: Demonstrate center of mass with forks and toothpicks

This is a fun bar trick. You can balance two forks and a toothpick on the tip of another toothpick. Read more »

How to spin a pen. Pen Spinning the ultimate video lesson

This is a skill that develops with practice. Some of these videos hint that basic spinning is possible after Read more »

How do you convince your kids there is something fun to do outside in the snow?

Build an ice rink, a snow man, an ice slide, a fort, an igloo, a ski lift or rope tow, and more. Watch these videos, and you too will be watching for the next big snow storm Read more »

How to explore the Solar System in real time

“Eyes on the Solar System” is a 3-D environment full of real NASA mission data. Explore the cosmos from your computer. Hop on an asteroid. Fly with NASA’s Voyager 2 spacecraft. See the entire solar system moving in real time. It’s up to you. You control space and time. Read more »

How can you create antigravity?

Gravity is a concept without true explanation. It is a description of what happens, but there is no firm proof of a cause or a why. Read more »