Date: Fri Mar 20 21:17:25 2009 Back to Contents ------------------------------------------------------------------------

Author: Paul Nord

Subject: Re: Magnets and Sea Urchins


And... what was the field in the control tank which used the same water?

On Mar 20, 2009, at 2:16 PM, Thomas J. Bauer wrote:

> One of my into E&M students bowwored a Pasco Hemholtz coil and Power
> supply for her
> biology project. She put sea urchins in a magnetic filed for their
> first
> two weeks of growth.
> They developed fine, but almost twice as fast as normal.
> At the maximum continous current I measured a field of 30 gauss.
> Tom B
> Wellesley College

From Fri Mar 20 21:17:25 2009