from here...
Images of U.S. President-elect Barack Obama, each made with approximately 150 million tiny carbon nanotubes, are photographed using an electron microscope by University of Michigan Mechanical Engineering Department in this image released to Reuters November 10, 2008. The image, based on an original drawing by Shepard Fairey, is just wider than 500 microns and is made of approximately 150 million tiny carbon nanotubes, which is about the number of Americans who voted on November 4, according to John Hart at University of Michigan. (REUTERS/John Hart, Sameh Tawfick, Michael De Volder, and Will Walker/University of Michigan/Handout)
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