Haven't figured the radioactive or not issue. Regards and thanks. Paul WB8TSL
Paul, The isotope of cesium used in atomic clocks is Cs133, which is a naturally occurring, non-radioactive (stable) isotope. You're probably thinking of the other isotope, Cs137, which is famous for being an unwelcome airborne radioactive by-product of reactor accidents. In fact, there are still unnatural levels of this isotope in the atmosphere due to fission weapons testing during the cold war. But again, the kind of cesium in vitamins, in your body, and in atomic clocks is the safe, stable, Cs133 variety. See also: http://en.wikipedia.org/wiki/Isotopes_of_caesium I can't say the same for carbon (C14) or potassium (K40). See http://en.wikipedia.org/wiki/Banana_equivalent_dose /tvb _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
