[time-nuts] Cheap Rubidium

[Steve Rooke]

Hi,

In most rural or semi-rural areas over here in Canterbury, New
Zealand, water is provided by a well on the domicile section. Wells
are drilled into the natural aquifer formed by volcanic ash which we
live on so it is relatively easy to create a bore hole and take
advantage of the naturally filtered water from quite a distance below
the surface. I wouldn't mind betting that this water comes out of the
ground at a very constant temperature season by season and the amount
needed to flow over the rb heatsink to hold it steady would not be so
great as to be able to be wasted back into the drains.

Ths would save all the messing about pumping water down into a bore
and pumping it back up again. Although I appreciate that not everone
is in the position to do this but some may already have a water supply
like this, even for garden irrigation. When I lived out in the sticks
I had reticulated water on the drip for the house uses but my own bore
for garden irrigation.

73
Steve

2009/12/25 Bob Camp <lists at cq.nu>:
> 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
>> Huson, MT, 59846
>> VOX 406-626-4304
>> www.lightningforensics.com
>> www.sixmilesystems.com
>>
>>
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>
>
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-- 
Steve Rooke - ZL3TUV & G8KVD
A man with one clock knows what time it is;
A man with two clocks is never quite sure.