http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?s=technology&c=news&l=on&pic=081117-nanobamas-02.jpg&cap=Microscopic+faces+of+Barack+Obama+made+using+nanotechnology%2C+and+imaged+using+a+scanning+electron+microscope.+Each+face+consists+of+millions+of+vertically-aligned+carbon+nanotubes%2C+grown+by+a+high+temperature+chemical+reaction.+Credit%3A+John+Hart%2FUniversity+of+Michigan&title=