Solar Eclipse and Petroglyphs in New Mexico
A video made at Petroglyph National Monument in Albuquerque, New Mexico; during the May 20, 2012 eclipse.
Very Realistic Earth and Moon Globes
Two giant globes at Fleischmann Planetarium look almost like the real thing.
Russian Sokol vs. the Orlan Spacesuits
Both suits are used in the Russian Space Program. But they serve different purposes.
Making a Cloud Chamber
Here's how to make a simple cloud chamber for analyzing radioactive elements, using basic kitchen materials.
Removing the Radioactive Source that Makes a Smoke Detector Work
There's a small button of radioactive americium 241 inside of most smoke detectors, here's how to remove it.
How to Block a Cell Phone Signal Using a Faraday Cage
If you're worried about cell phone privacy, here's a simple technique that will help.
Cooling Isopropyl Alcohol with Dry Ice
What happens to isopropyl alcohol when it's cooled to dry ice temperature? Let's find out.
Creating an Electrically Charged Fog
I make a fog generator from a martini shaker, and charge the fog using a Van de Graaff generator.
The Quinn Canyon Meteorite
The huge, 1 ton, iron Quinn Canyon meteorite has lots of classic meteorite features including widmanstatten figures, and regmaglypts.
A Soviet Soyoz Re-Entry Module
One of the featured exhibits at Chabot Space Center is this Soyoz re-entry module.
