How much would you pay for an invisibility cloak? Interesting new math/science possibilities.

Quoted: Every child’s dream of invisibility made a giant leap toward becoming a reality last year. A cloaking device has set the mathematical community buzzing about how to make invisibility not just possible, but practical. “Who would have thought that people would be talking about invisibility in scientific terms?” said Gunther Uhlmann, the UW’s Walker Family endowed professor of mathematics. Uhlmann followed the news especially closely because he and his colleagues had discovered an invisibility cloak in 2003.