Date: Tue Mar 17 11:05:09 2009 Back to Contents ------------------------------------------------------------------------

Author: cbettis@unlserve.unl.edu Received: from wm-imp-2.unl.edu (wm-imp-2.unl.edu [129.93.2.91]) by uni00ml.unity.ncsu.edu (8.13.7/8.13.8/N.20071210.01) with ESMTP id n2HF4MAQ026751 for ; Tue, 17 Mar 2009 11:04:22 -0400 Received: from localhost (localhost [127.0.0.1]) by wm-imp-2.unl.edu (8.13.1/8.13.1) with ESMTP id n2HF6bwS014585 for ; Tue, 17 Mar 2009 10:06:37 -0500 Received: from lecturdemo.unl.edu (lecturdemo.unl.edu [129.93.36.196]) by wm-imp-2.unl.edu (Horde MIME library) with HTTP; Tue, 17 Mar 2009 10:06:37 -0500 Message-ID:

Subject: Re: Power Lines and compasses?

Post:

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Jim,

Here is a link to the story:

http://www.npr.org/templates/story/story.php?storyId=3D101945271[1]

Cliff

Quoting "Papp, James J " :

> How do the cattle detect a magnetic field?=A0 How did the researchers
> measure the cattle's alignment with the Earth's magnetic field? Does the
> oscillating field of the lines register with cattle at all, as opposed
> to a basically static field from the earth?=A0 What is the strength of the
> power line field where the research took place?=A0 What is "near" to a
> power line, in meters?=A0 How much current did that line carry? Etc.
>
> Jim
>

Links:
------
[1] http://www.npr.org/templates/story/story.php?storyId=3D101945271


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Jim,

Here is a link to the story:

http://www.npr.org/templates/story/story.php?storyId=3D101=
945271 <3D"http://www.npr.org/templates/story/story.php?storyId=3D101945271">


Cliff

Quoting "Papp, James J "
:

> How do the cattle detect a
magnetic field?=A0 How did the researchers
> measure the cattle's
alignment with the Earth's magnetic field? Does the
> oscillating fi=
eld
of the lines register with cattle at all, as opposed
> to a basicall=
y
static field from the earth?=A0 What is the strength of the
> power =
line
field where the research took place?=A0 What is "near" to a
&=
gt;
power line, in meters?=A0 How much current did that line carry? Etc.
&g=
t;
> Jim
>
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From tap-l-owner@lists.ncsu.edu Tue Mar 17 11:05:09 2009

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