Shrinky-Dinks, I love to make them shrink!
How terrific is this? Freshly-minted UC Merced professor Michelle Khine was in a bind. Her area of research was microfluidics--an emerging field that, from the sound of it, is like a cross between electrical engineering, chemistry, and steampunk--but she was missing a chip fabricator, a rather important bit of equipment if one is researching microfluidic chips. Which she was.
But Prof. Khine had, in addition to the bucket o' brains needed for her Ph.D. and research career, that wonderful indie DIY sensibility that people I admire so often have, and she decided to build her own damn chip fab. Since she dealt with the minute, she'd have to start with a full-sized design and then shrink it down... shrink it down... hmmm...
Not since Silly Putty was used to defeat fingerprint scanners has the world of childrens' toys contributed such a cool hack to the world of science. Prof. Khine printed her circuits onto Shrinky-Dink plastic with her laser printer*, then sang the Shrinky-Dink jingle** as she stuck it in the oven. Presto! Negative mold for one's microfluid chip, all ready to go.
Is this great, or what? I think I need a very large research grant to investigate the possible scientific applications of the rest of the toy store.
* which, for those of you didn't know, doesn't use ink that soaks into the paper, but rather toner powder that's electrochemically bonded to the paper surface. If your toner unit is busted, the powder won't fuse properly, and you can flake off chunks of the stuff off of your printouts. (This lends a certain postmodern quality to one's term papers.) The important part here is that the toner on the Shrinky-Dink clumped to itself as it shrank, and formed a little raised ridge like a line of frosting.
** It is true that I have no proof of this, but come on--wouldn't you?