Hugh Pickens writes "Oil-field service companies lower radioactive units into wells to let workers identify places to break apart rock for a drilling process known as hydraulic fracturing, or fracking, which frees oil and natural gas. Now Bloomberg reports that Halliburton workers have discovered that a lock on the container used to transport one such device has gone missing, along with the unit, after employees drove a truck from a site near Peco to a well south of Odessa and while the loss of radioactive rods occurs from time to time, it has been years since a device with americium-241/beryllium, the material in Halliburton's device, was misplaced in Texas. NRC spokeswoman Maureen Conley says the material would have to be in someone's physical possession for several hours for it to be considered harmful as teams comb the route between the two wellsites searching for the seven-inch tube, which is clearly marked with the words 'DANGER RADIOACTIVE' as well as a radiation warning symbol, "Halliburton strongly cautions members of the public that if they locate this source, they should not touch or handle it, stay a minimum of 25 feet away," and contact local law enforcement or the company's emergency hotline if they find the cylinder, says the company which is also offering a reward for information about the tube's whereabouts."

CharlyFoxtrot writes "Steve Wildstrom at Tech.Pinions takes on some of the what he calls folklore surrounding Apple v Samsung, investigating what was and wasn't part of the case and how the media got it wrong: 'There's one serious problem with the first sentence, which was repeated dozens of times in stories in print and on the Web. Apple only has a limited patent on the pinch to shrink, stretch to zoom gesture that is a core element of touch interfaces. And the 826 patent wasn't in dispute in the Samsung case because Apple never asserted it. In fact, this particular patent does not seem to be in dispute in any litigation.'"

Lauren Weinstein excerpts the most interesting part of a BBC story about the safety hazards associated with the Chevy Volt — specifically, the risk that its battery pack could catch fire after even a minor impact. While it might be unsurprising that GM was reluctant to shout out safety warnings that would dampen early sales of its much touted hybrid, according to the linked story the NHTSA was as well, and for the same reason: "Part of the reason for delaying the disclosure was the 'fragility of Volt sales' up until that point, according to Joan Claybrook, a former administrator at NHTSA."

disco_tracy writes "Imagine a room where a band is playing. Neighbors can't hear the music, but if someone outside the room is talking, the musicians can hear it. The concept — a kind of one-way mirror for sound — seems imaginary, but two Italian scientists recently pushed this kind of sound manipulating technology closer to reality (abstract)."