25 Mar
2010
25 Mar
'10
1:10 p.m.
At 10:38 AM 3/25/10 +0000, brewhaha wrote:
And if you allow that birds navigate with the earth's magnetic field then eight [human senses}?
I guess that means we have nine senses, since humans can vaguely detect the polarization of light. Check: <http://polarization.com/haidinger/haidinger.html> Jim, the cross-eyed