[time-nuts] FEI-5660 Rubidium Oscillator
djl at montana.com
Sat Mar 29 19:01:05 EDT 2014
granite is not only radioactive, but also piezoelectric.
On 03/29/2014 12:48 PM, Magnus Danielson wrote:
> On 28/03/14 04:47, Mark Sims wrote:
>> no, No, NO granite! Granite tends to be rather radioactive
>> (particularly avoid the pink stuff). Any audiofool worth his tin
>> ears can't have no stinkin' alpha/beta/gamma particles mucking with
>> his music!
> In that case you don't want a Rubidium clock in there.
> Rb-87 has a 48,8 miljard years half-time with beta- emission.
> Then again, it's about three times the life of universe, so it's not a
> very strong radioactive source. :)
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