Future electronic skin and bio-batteries could be etched onto surfaces with inkjet printers, conducting electricity while looking for all the world like spongy biological tissue. A new electrically conductive hydrogel, developed at Stanford University, can be printed or sprayed as a liquid and turned into a gel once it’s in place.
After ages of controlling the international market for natural diamonds, the diamond cartel De Beers is starting to spread its tentacles into Silicon Valley, where the hardest form of carbon is prized for much more than glitter. De Beers is investing heavily in convincing IT pros that lab-grown diamonds — not long ago, the bane of diamond dealers’ existence — are the semiconductor substrate of the future.
By Gregory MonePosted 05.04.2005 at 1:00 pm 0 Comments
1. Einstein showed that light travels in bundles called quanta, which are at
the heart of the light-emitting diode. When electrons in a semiconductor-based diode move from one side to another, they shift to a less excited state, releasing energy in the form of photons. Channel these, and you get a bright, long-lasting light source.
2. In 1917 Einstein demonstrated that when a photon comes into contact with an atom, it can trigger a chain-reaction release of additional photons from