[time-nuts] Cheap Rubidium

[Bob Camp]

Hi

Actually burying a recirculating loop might work pretty well. The gotcha is that going much deeper than 18" would require significant amounts of blasting powder. I suspect the neighbors *might* object ....

Bob


On Dec 24, 2009, at 3:32 PM, Don Latham wrote:

> Actually, couldn't you just squeeze your fish before you eat it? Should
> have a lot of mercury in notime, according to the scaremongers.
> Also, consider a heatsink buried about 10-15 feet deep. The temperature at
> that depth in the ground does not vary very much at all. The trick to all
> of this is to have a heatsink/source at a constant temp somewhere...
> Merry Christams to all the nuts!
> Don
> 
> Bruce Griffiths
>> Magnus Danielson wrote:
>>> Bruce,
>>> 
>>> Bruce Griffiths wrote:
>>>> At your location, at present, it wouldnt be a significant problem as
>>>> long as the basement was unheated.
>>> 
>>> Depends. But having 3 dm snow on the ground helps to keep the ground
>>> around the house warmer, as it will insulate against the cold of the
>>> open sky. -12.8 C is the lowest so far. Since winter is reoccuring, we
>>> build the houses accordingly.
>>> 
>>>> Also good ventilation would help, together with a thin layer of oil
>>>> on top of the mercury.
>>> 
>>> Mmm. Yes, didn't think about covering the baths with fluids.
>>> 
>>>> The biggest obstacle would be the cost of the Mercury.
>>> 
>>> Actually, it could be an obstcle just obtaining in those amounts it
>>> here within EC, so it would involve some form of approval of some form
>>> of excempt since it is mercury is a ROS element.
>>> 
>>> Cheers,
>>> Magnus
>>> 
>>> 
>> Guidline price is around $US600/flask (1 flask = 34.5kg).
>> Thus cost for 145 ton would be around $US2.5million.
>> 
>> The Canadians have a liquid mercury mirror telescope about 6m in diameter.
>> Whilst this doesn't use 145 tons of mercury the surface area would be of
>> the same order.
>> 
>> Bruce
>> 
>> 
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> 
> 
> -- 
> Dr. Don Latham AJ7LL
> Six Mile Systems LLP
> 17850 Six Mile Road
> POB 134
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> 
> 
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