World's smallest abacus:
http://www.zurich.ibm.com/pub/hug/PR/Abacus/
Moving about individual molecules using a scanning tunneling microscope. I don't even know what one of those is, but it's nifty.
http://www.zurich.ibm.com/pub/hug/PR/Abacus/
Moving about individual molecules using a scanning tunneling microscope. I don't even know what one of those is, but it's nifty.