> Mine only has to work once, but there are some extreme conditions > involved. > Sitting in a bath of liquid Nitrogen & subjected to a pulsed magnetic > field > of 25 tesla. I'm not convinced they will work for me, but thought I'd cool > one down & see how it behaved. Yikes.. Zebra strips work by being flexible, and I kind of doubt that at those temperatures, they will be more flexible than say, glass..? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist