Date: Mon Mar 23 19:54:43 2009 Back to Contents ------------------------------------------------------------------------

Author: Bill Alexander

Subject: Re: Magnets and Sea Urchins

Post:

Was this done as a double blind, with carefully controlled
temperature and light levels?

Bill



>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


--



Bill Alexander
Physics Dept.
Humboldt State University
(707) 826-3212


From tap-l-owner@lists.ncsu.edu Mon Mar 23 19:54:43 2009