In the Museum of the History of Science (that's the Old Ashmolean, folks - oldest museum in the world), runs from today until the 21st of February 2010.
So exciting! Guh, so many amazing artists that I'd love to see, particularly Datamancer (he of the spectacular computer mods), and Haruo Suekichi (the watchmaker). The exhibition blog has better pictures, and a list of artists.
Another reason to organise a trip to Oxford!