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'Nanobamas' Crafted

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ANN ARBOR, Mich., Nov. 18, 2008 -- President-elect Barack Obama's face seems to be everywhere these days, on 24-hour news channels, the Internet, and on T-shirts, mugs and other items commemorating the historic election of Nov. 4. A University of Michigan professor has even created 3-D portraits of the soon-to-be 44th president that are smaller than a grain of salt and dubbed them "nanobamas." John Hart, an assistant professor in the department of mechanical engineering, made the mini-Barack Obama likenesses with his colleagues to raise awareness of nanotechnology and science.Through an electron microscope, it's possible...Read full article

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    Published: November 2008
    Glossary
    electron microscope
    A device utilizing an electron beam for the observation and recording of submicroscopic samples with the aid of photographic emulsions or other short-wavelength sensors. With the electron microscope, the maximum useful magnification is over 300,000.
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    nanotechnology
    The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    ultraviolet
    That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
    Barack Obamacarbon nanotubeelectron microscopeenergyhairindustrialJohn HartMicroscopynanonanobamananotechnologyNews & Featuresphotonicssciencesiliconsolar cellsultravioletUniversity of MichiganWafersLasers

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