"Nanobamas", Half-Milimeter Obama Heads, Carved By Michigan Researchers (PHOTO)

It took approximately 150 million carbon nanotubes, each measuring tens of thousands of times smaller than a human hair, to build John Hart's unique homage to Barack Obama.

Even then, the finished product is only half a millimetre in diameter and almost indistinguishable from any other garden variety micro dot - unless you happen to be looking at it through a microscope.

The magnification reveals tiny, three dimensional "carvings" of the now ubiquitous polarised image of the president-elect originally created by street artist and graphic designer Shepard Fairey.

The "Nanobamas" were created by a team of researchers led by Hart, an assistant professor in the Department of Mechanical Engineering at the University of Michigan.

"I feel demonstrations like this have great value in communicating science and technology to broader audiences," Hart wrote in his blog

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