Hugh Pickens writes "BBC has an interesting article on the long-standing issue of how to power the 'climber' that would ascend a space elevator into space. Previous ideas have included delivering microwave or laser power to the climber beamed from the Earth's surface, but now European Space Agency ground station engineer Age-Raymond Riise has demonstrated a device that could provide a "lift into space" for cheaper space missions along a 100,000-km long tether anchored to the Earth. Riise demonstrated sending power mechanically by providing carefully timed jerks of the cable at its base with a broomstick to represent the cable held in tension, an electric sander to provide a rhythmic vibration to the bottom of the stick, and three brushes representing the climber with their bristles pointing downwards allowing the climber assembly to slide upward along the broomstick as it moved slightly downward, but grip it as it moved slightly upward. 'It would be possible to make a suspension system that completely decouples the cabin where the passengers are,' says Riise. 'For them it would be a linear movement with very little disturbance.' Riise says that he has been approached by commercial elevator companies, who are researching new ideas for elevators in superscrapers where the simplicity of the approach makes it attractive when compared to other ideas for powering lifts, such as compressed air."

Physicser writes "Want to read every single technical detail of the design and construction of the Large Hadron Collider and its six detectors? The whole shebang — seven reports totaling 1600 pages, 115 MB, with contributions from 8000 scientists and engineers — has been published electronically by the Journal of Instrumentation, free to read without a subscription."

Jeff Michael Deck and Benjamin Douglas Herson travel the nation removing typos from public signs. As you can imagine, nobody cared, that is until they 'fixed' a historic marker at the Grand Canyon. The pair were charged with vandalism, sentenced to a year's probation, during which they cannot enter any national park, and ordered to pay restitution. Deck, a Dartmouth graduate, told reporters he became passionate about grammar after winning junior-high spelling bees. It's a shame that you can't spell your way into a life.

theodp writes "How about a summer camp where you get in trouble for not blowing things up? Students with a passion for all things explosive and proof of US citizenship pay a $450 fee to attend Summer Explosives Camp, 'We try to give them an absolute smorgasbord of explosives,' quipped a professor at the University of Missouri-Rolla, which offers a minor in explosives engineering. Here's the brochure (PDF), kids!"