History of The Senses/Talk

	Revision 2 . . October 15, 2001 2:59 pm by ManningBartlett [ummm.... yeah, well, aaahhhh]
	Revision 1 . . October 15, 2001 2:17 pm by (logged).123.179.xxx [*added question about magnetoception.]

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With the magnetoception, do the birds detect fluctuations in the magnetic field or the magnetic field itself? If they detect fluctuations, then their sense could just be a sub set of the electric field sense (from Maxwell's equations: ∂B/∂t = -curl(E)) what this means is that a changing magnetic field produces an electric field that has a tendancy to rotate (whether that change be due to a moving observer, a moving field, or a changing field, it does not matter). If they detect the magnetic field itself, then it's more likely to be separate. One would have to scan their brain activity under a constant magnetic field and see if there was constant stimulus or stimulus only when the bird moves its head to detect this.--BlackGriffen

With the magnetoception, do the birds detect fluctuations in the magnetic field or the magnetic field itself? If they detect fluctuations, then their sense could just be a sub set of the electric field sense (from Maxwell's equations: ∂B/∂t = -curl(E)) what this means is that a changing magnetic field produces an electric field that has a tendancy to rotate (whether that change be due to a moving observer, a moving field, or a changing field, it does not matter). If they detect the magnetic field itself, then it's more likely to be separate. One would have to scan their brain activity under a constant magnetic field and see if there was constant stimulus or stimulus only when the bird moves its head to detect this.--BlackGriffen Two points - First; such a discussion belongs in the page about Magnetoception? and not in the general "the senses" article. Secondly, I have absolutely no frigging idea. Check the link on Magnetoception is my best advice. - MB