Internally, the pulses generated by a common Geiger counter board are picked up by some custom electronics to drive the servo and LEDs. Triggered by those same pulses, ...

Getting the board in and out can be a little tricky, but it looks like the batteries can be changed without having to pull the whole board out. Check out the video below to see the Giger Counter.

As part of this I mentioned that I would like to own a Geiger counter… Well, my chum Brian pointed me at the Kits USA website, where they have all sorts of educational do-it-yourself kits, including a ...

3. The red square indicates the flyback in this simulation circuit. To simulate the Geiger Tube and the pulse generated by a particle striking the tube, we decided to use a simple switch (S1) with ...

Oceanit, one of Hawaii’s largest science and engineering firms, plans to lead an effort to help Japan with its radiation problems after the explosions at the Fukushima Daiichi Nuclear Plant.

Geiger counters, also known as dosimeters, ... It takes about $3,000, 10 workers and commonly available circuit boards and chips to enter the Geiger-counter business, ...

The Oregonian Editorial Board View full size Courtesy Monterey Bay Aquarium/Randy Wilder Pacific bluefin tuna swiftly migrate across the Pacific, from spawning grounds off Japan to California.