[time-nuts] Cheap Rubidium

[Bob Camp]

Hi

Unfortunately, I can see the main water tower from my front yard. We don't spend much money heating shower water in the summer.....

Bob


On Dec 26, 2009, at 12:03 PM, J. Forster wrote:

> In most single family houses, the water supply is pretty constant
> temperature because the pipes typically run well underground for miles and
> miles. Seasonal temperature variations don't usually go down more than a
> few feet. The pipes are often deeper.
> 
> -John
> 
> =============
> 
>> 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.
>> 
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> 
> 
> 
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