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From: John Larkin on 3 May 2010 20:29
On Mon, 3 May 2010 09:46:39 -0700 (PDT), Bret Cahill
<BretCahill(a)peoplepc.com> wrote:

>String a wire back and forth across / along a fault line to measure
>very small displacements in the earth's surface. If the resistance
>and/or tensile strength needs to be higher than a common single alloy
>wire then structural steel cable could be wrapped around a insulated
>wire with a higher resistivity. It could be temperature compensated
>as usual, with another wire of the same length loosely supported
>nearby in another leg of the bridge.
>
>An abandoned power line may be good to go if it is properly located.
>
>Good info sometimes comes in small displacements.
>
>
>Bret Cahill
>

Differential GPS and laser rangefinders make a lot more sense.

John

From: krw on 3 May 2010 20:37
On Mon, 03 May 2010 17:29:32 -0700, John Larkin
<jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote:

>On Mon, 3 May 2010 09:46:39 -0700 (PDT), Bret Cahill
><BretCahill(a)peoplepc.com> wrote:
>
>>String a wire back and forth across / along a fault line to measure
>>very small displacements in the earth's surface. If the resistance
>>and/or tensile strength needs to be higher than a common single alloy
>>wire then structural steel cable could be wrapped around a insulated
>>wire with a higher resistivity. It could be temperature compensated
>>as usual, with another wire of the same length loosely supported
>>nearby in another leg of the bridge.
>>
>>An abandoned power line may be good to go if it is properly located.
>>
>>Good info sometimes comes in small displacements.
>>
>>
>>Bret Cahill
>>
>
>Differential GPS and laser rangefinders make a lot more sense.

Sense? You're talking to Cahill, here.
From: John Larkin on 3 May 2010 20:44
On Mon, 03 May 2010 19:37:55 -0500, "krw(a)att.bizzzzzzzzzzzz"
<krw(a)att.bizzzzzzzzzzzz> wrote:

>On Mon, 03 May 2010 17:29:32 -0700, John Larkin
><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote:
>
>>On Mon, 3 May 2010 09:46:39 -0700 (PDT), Bret Cahill
>><BretCahill(a)peoplepc.com> wrote:
>>
>>>String a wire back and forth across / along a fault line to measure
>>>very small displacements in the earth's surface. If the resistance
>>>and/or tensile strength needs to be higher than a common single alloy
>>>wire then structural steel cable could be wrapped around a insulated
>>>wire with a higher resistivity. It could be temperature compensated
>>>as usual, with another wire of the same length loosely supported
>>>nearby in another leg of the bridge.
>>>
>>>An abandoned power line may be good to go if it is properly located.
>>>
>>>Good info sometimes comes in small displacements.
>>>
>>>
>>>Bret Cahill
>>>
>>
>>Differential GPS and laser rangefinders make a lot more sense.
>
>Sense? You're talking to Cahill, here.

oh. sorrreee.

John

From: George Herold on 3 May 2010 21:40
On May 3, 8:44 pm, John Larkin
<jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote:
> On Mon, 03 May 2010 19:37:55 -0500, "k...(a)att.bizzzzzzzzzzzz"
>
>
>
>
>
> <k...(a)att.bizzzzzzzzzzzz> wrote:
> >On Mon, 03 May 2010 17:29:32 -0700, John Larkin
> ><jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote:
>
> >>On Mon, 3 May 2010 09:46:39 -0700 (PDT), Bret Cahill
> >><BretCah...(a)peoplepc.com> wrote:
>
> >>>String a wire back and forth across / along a fault line to measure
> >>>very small displacements in the earth's surface.  If the resistance
> >>>and/or tensile strength needs to be higher than a common single alloy
> >>>wire then structural steel cable could be wrapped around a insulated
> >>>wire with a higher resistivity.  It could be temperature compensated
> >>>as usual, with another wire of the same length loosely supported
> >>>nearby in another leg of the bridge.
>
> >>>An abandoned power line may be good to go if it is properly located.
>
> >>>Good info sometimes comes in small displacements.
>
> >>>Bret Cahill
>
> >>Differential GPS and laser rangefinders make a lot more sense.
>
> >Sense? You're talking to Cahill, here.
>
> oh. sorrreee.
>
> John- Hide quoted text -
>
> - Show quoted text -

And still, sensing the earth shake, doesn't tell you ... . .??? there
is all sorts of low level shaking going on. How many 5.0 earth quakes
per year? And how big is the shake from a 18 wheel semi going by your
site.. or logging going on near by....(tale from Ligo)

George H.
From: John Fields on 3 May 2010 22:22
On Mon, 3 May 2010 09:46:39 -0700 (PDT), Bret Cahill
<BretCahill(a)peoplepc.com> wrote:

>String a wire back and forth across / along a fault line to measure
>very small displacements in the earth's surface. If the resistance
>and/or tensile strength needs to be higher than a common single alloy
>wire then structural steel cable could be wrapped around a insulated
>wire with a higher resistivity. It could be temperature compensated
>as usual, with another wire of the same length loosely supported
>nearby in another leg of the bridge.
>
>An abandoned power line may be good to go if it is properly located.
>
>Good info sometimes comes in small displacements.

---
Oh, My...

To call you an idiot would be kind, since there's nothing in any of your
posts which suggests that you even know how a Wheatstone bridge works
and, from your latest, the proof that you don't is in the pudding.

Uncle Al is right, as usual.


JF
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Next: STEPHEN HAWKING, HIDE YOUR HEAD IN SHAME