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For all you magnetic personalities out there — Parallax Forums

For all you magnetic personalities out there

ElectricAyeElectricAye Posts: 4,561
edited 2011-06-22 00:38 in General Discussion
Ever feel like you've lost your way in a world gone crazy with electromagnetic waves? Maybe there's an explanation.

http://www.nature.com/ncomms/journal/v2/n6/full/ncomms1364.html

Maybe some months ago I mentioned something about animals being able to see magnetic fields:

http://www.unc.edu/depts/geomag/PDFGeomag/2008PhysicsToday.pdf

http://www.pnas.org/content/106/2/353.full.pdf+html

Comments

  • Beau SchwabeBeau Schwabe Posts: 6,568
    edited 2011-06-21 21:03
    ElectricAye,

    That's really cool!! Your second article is what I am more familiar with... Think about this, if you have two 'magnetic' sensors they don't even have to be very good sensors by themselves. The Key is that they are consistent in creation, either manufactured or from life. Then you amplify the heck out of them in a way that everything that is common mode to the sensors will drop-out and disappear. This mathematical trick will greatly increase your signal to noise ratio and now you have a very good sensor. Biology has a way of doing this remarkably well with a bundle of nerve endings at the sense location.
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2011-06-22 00:38
    Anyone having teaspoons stick to their stomach? Recently, the Taiwan news reopened claims that cell phones' magnetic field causes brain tumors.

    I guess this would be more about seeing a person's aurora. What color is yours?

    It would be really cool if one could visually navigate.
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