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The project is an analog Geiger counter that is capable of detecting and measuring the three forms of radiation including alpha, beta, and gamma radiation. The project is an analog Geiger counter that ...

I got some Geiger tubes a few days ago and built a very simple Geiger counter circuit that is powered entirely through the microphone jack (microphone connection provides a little power for things ...

How real is the risk, how safe is that airplane flight? March 16, 2011 — -- Despite U.S. consumers' growing awareness of iodide pills, Geiger counters and emergency kits in the wake of Japan's ...

The recent tsunami in Japan and the on-going calamity with the Fukushima nuclear power plant has apparently greatly increased sales of radiation meters, not only in Japan but elsewhere around the ...

It used to be that every well-stocked doomsday bunker had a Geiger counter. These days, you don’t have to have a big tube-based meter. You can inexpensively get a compact digital instrument to handle ...

One thing a radioactive world needs is a good “atom-sized” Geiger counter. Last week the University of Chicago proudly displayed a handy, hip-pocket model. The new gadget is so easy to read that ...

I got one today Ludlum 3 with the 44-9 probe. Anyhow coolest toy yet. I notice it clicks on occasion (background radiation) Some times I notice like a group of clicks all come in once in a while, is ...

Geiger counter with a “FRANK HARTMAN / RADIUM PRODUCTS / 1921 WALNUT ST. / PHIL. PA.” inscription. When the United States entered World War I, Frank Janczak Hartman (1893-1986) was recruited by the ...