Mini-bull. (Physical News).

Sculptor Satoshi Kawaka has never been to art school, nor will his work ever appear in a museum. In fact, it won't appear anywhere at all, unless you look under an extremely powerful microscope. That's because Kawaka's sculpture is no bigger than a single human red blood cell. In August, Kawaka, a physicist at Japan's Osaka University, created the world's tiniest sculpture, dubbed the "micro bull."

How small is small? At 10 microns (10-millionths of a meter) long--nearly a thousand could sprawl on the tip of your thumb. Kawaka used a laser (high-energy light) to sculpt the 3-D bull out of resin, a brittle material made from hardened liquid. Kawaka hopes the decorative sculpture will inspire micro-medical machines that can travel through the bloodstream to diagnose and treat disease. And that's no bull.