and there is a question that asks: "Some watches use of radionuclides emitting glow in the dark hands. Comment on the security implications this method. "Then there is the difference between" use "and" dissemination "and read its alpha, beta or gamma (but with the symbol). I say the question of whether he knew what kind of radio-isotopes could see the glow of the hands and such issuer, that is. So any help would be appreciated.
There was a little different compounds whose luminescence markers clock. Quality luminova modern watches use a trademark for an oxide Strontium aluminate compounds. Ball Clock uses tritium micro gas tubes that do not load, but will stop lights, as the radioactivity of tritium is exhausted. Some old-style watches using a radio-based compounds for paints its luster.
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