Wednesday, January 31, 2007

Picture of the day


Magnetic field lines in a bacterial cell


University of Cambridge Department of Materials Science & Metallurgy Gallery, Magnetic field lines in a bacterial cell

The image shows the magnetic field lines in a single bacterial cell. The fine white lines are the magnetic field lines in the cell, which were measured using off-axis electron holography. Such bacteria live in sediments and bodies of water, and move parallel to geomagnetic field lines as a result of the torque exerted on their magnetosome chains by the earth's magnetic field. (click to see full sized version)

Acknowledgments: Richard Frankel, Mihaly Posfai, Peter Buseck

Visit the University of Cambridge Department of Materials Science & Metallurgy Gallery.

I will post the others in this series over time. To see it all now, visit the Nanotechnology Now Gallery.

1 comment:

Mike N said...

Oh wow! That is so interesting. I wonder if this is a similar mechanism that guides carrier pigeons.