It's a problem many Internet users share: How do you allow successive modifications of online materials without losing the credibility of the original?
After a decade of hype, microscopic mechanical systems are poised to make major changes in the size of our cell phones, the reliability of our communications systems-even the way "Star Wars" is shown.
Indigenous peoples around the world want new technology, but on their own terms--just as we all do.
After a decade of calculations, the first wave of materials designed from scratch on the computer are ready to be made and tested. On the horizon: new substrates for optics and electronics.
After 20 years of plodding development, the Global Positioning System remains a novelty for niche markets. The system's future hinges less on technology than on politics, economics and human nature.
Wartime mass production made penicillin a panacea.
Jeff Hawkins, creator of the PalmPilot, has other, much larger ambitions. He wants to figure out how the brain does its thing.