NP: Schroedinger stuff

[Spencer Thiel]

Article detailing Schroedinger's SQUID: 
<http://www.britannica.com/bcom/original/article/0,5744,5337,00.html>.

Sample:
"It doesn't purr, but a tiny superconducting ring is the closest thing yet 
to Erwin Schroedinger's famous dead-and-alive cat. At late March's meeting 
of the American Physical Society in Minneapolis, physicists announced that, 
under the right conditions, such rings can carry current in opposite 
directions at the same time--a property never before observed in an object 
so big."