Browsing all 47 posts in Science.

Solar Eclipse and Petroglyphs in New Mexico

May 25th, 2012 | 1 Comment

A video made at Petroglyph National Monument in Albuquerque, New Mexico; during the May 20, 2012 eclipse.

Very Realistic Earth and Moon Globes

April 23rd, 2012 | No Comments

Two giant globes at Fleischmann Planetarium look almost like the real thing.

Russian Sokol vs. the Orlan Spacesuits

April 19th, 2012 | No Comments

Both suits are used in the Russian Space Program. But they serve different purposes.

Making a Cloud Chamber

April 6th, 2012 | No Comments

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

March 27th, 2012 | No Comments

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

February 27th, 2012 | 1 Comment

If you're worried about cell phone privacy, here's a simple technique that will help.

Cooling Isopropyl Alcohol with Dry Ice

February 12th, 2012 | No Comments

What happens to isopropyl alcohol when it's cooled to dry ice temperature? Let's find out.

Creating an Electrically Charged Fog

January 28th, 2012 | No Comments

I make a fog generator from a martini shaker, and charge the fog using a Van de Graaff generator.

The Quinn Canyon Meteorite

January 6th, 2012 | No Comments

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

November 20th, 2011 | No Comments

One of the featured exhibits at Chabot Space Center is this Soyoz re-entry module.