Date: Tue Mar 24 11:12:16 2009 Back to Contents ------------------------------------------------------------------------

Author: Doug Johnson

Subject: Re: Power Lines and cows?

Post:


Next time try hanging it by a string and see if you can get it to point
north. Also while hanging it there, put a mirror on it and shine a laser on
to the mirror and see if you get any kind of movement off the reflected
beam.
What frequency are they using for those high tension lines anyway?
Anyone know? ...Doug

PS... Maybe the fields aren't strong enough or the inertia of the magnet is
too high. (or it could be that the magnet just isn't the answer)


On 3/24/09 6:02 AM, "bennett bennett" wrote:

> I held my cow magnet right under the high tension lines over my fence,
> and I could not feel any vibration.
>
>
>
> On 3/23/09, Jerry DiMarco wrote:
>> I don't think you need a special organ to sense an electric field. We
>> may not be able to detect the field itself, though I'm not sure about this,
>> but we have all felt our hair stand up in the presence of one. When cattle
>> graze, their mouths, which would be much more sensitive to an electric field
>> or discharge, are near the ground. Do we know what they might feel under a
>> transmission line? Don't forget, in the study there were east-west
>> transmission lines, under which the cattle were lined up east-west. I'm
>> still inclined to think if there is anything to this, it will be due
>> primarily to electric field effects...
>>
>>
>> Jerry
>>
>>
>> At 3/18/2009 09:40 AM, you wrote:
>>
>>> ....
>>> Fish have and organ, a line which runs down each side of their bodies,
>> that allows them to sense electric fields. I don't think that this is
>> present in ruminants.
>>> ....
>>> Did the study account for the fact that google selects only the best
>> images for inclusion in their maps? I mean, do cows line up north- south
>> only on clear calm days at high-noon? Wouldn't facing north- south at noon
>> simply minimize their shadow? Or, rather, wouldn't it make the illumination
>> of their hides more uniform and less hot?
>>>
>>> Paul
>>>
>>
>>
>> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
>>
>> Jerry DiMarco
>> Manager of Lecture Demonstrations and Instructional Labs
>> Montana State Univ., Physics Dept.
>>
>> Bozeman, MT
>>
>> Our Motto: "Find your inner demo."
>>
>



From tap-l-owner@lists.ncsu.edu Tue Mar 24 11:12:16 2009

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