Dumping all our nuclear waste in a volcano does seem like a neat solution for destroying the roughly 29,000 tons of spent uranium fuel rods stockpiled around the world. But there's a critical standard that a volcano would have to meet to properly dispose of the stuff, explains Charlotte Rowe, a volcano geophysicist at Los Alamos National Laboratory. And that standard is heat. The lava would have to not only melt the fuel rods but also strip the uranium of its radioactivity.
A new electronic notepad may be lifelike, cheap and energy-efficient enough to replace those wasteful paper slips we still use for memos and grocery lists. The four-ounce Boogie Board runs for years on a single watch battery and, thanks to a novel use of the material inside ordinary computer screens, even mimics the feel of putting pen to paper.
Now that even cellphones can take the kind of photos you want to save, we end up with images scattered all over. So electronics makers are coming up with easier ways to move your snaps. Sony’s new wireless solution, TransferJet, is built into this TX7 camera and Vaio F-Series laptop. Come home after a trip, put the camera down, and your photos hop over before you hang up your coat.