3-D printing may soon expand beyond the small scale. In 2010, the world's largest 3-D printer will build the Radiolaria Pavilion, a 10-meter-tall structure in Pontedera, Italy. Made out of sandstone, the building will be printed one 5-10mm layered sheet at a time.
Embed fiber optics in the surface layer of sandstone. It's basically the same material. The whole wall becomes a display device (works better at night). Makes Christmas decorating a snap!
About to chuck that busted CD? Not so fast, young grasshopper. Web editor Megan Miller demonstrates three ways to resurrect those scratched discs using stuff you probably already have sitting on your shelf.
The dish soap is for washing the toothpaste off the CD. She mentioned washing it, but that they weren't going to show it. I guess they assume 99.9% of viewers could figure that out on their own. CDs have plastic on one side, but the label side only has a layer of lacquer, plus the label. If that side gets scratched, you're out of options. All you can do is make it worse.
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