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Earth

How To Safeguard Loose Nukes 167

Posted by samzenpus from the in-the-wrong-hands dept.
Lasrick writes "The Bulletin has an interesting article about the likelihood of terrorists obtaining nuclear material. 'Since 1993, the International Atomic Energy Agency (IAEA) has logged roughly 2,000 cases of illicit or unauthorized trafficking of nuclear and radioactive material. Thirty illicit radioactive trafficking incidents were reported in the former Soviet region alone from 2009 to 2011. As Obama said in December, "Make no mistake, if [terrorists] get [nuclear material], they will use it."'"
Bug

Japanese Probe Finds Miswiring of Boeing 787 Battery 201

Posted by samzenpus from the who's-to-blame dept.
NeverVotedBush writes in with the latest installment of the Dreamliner: Boeing 787 saga. "A probe into the overheating of a lithium ion battery in an All Nippon Airways Boeing 787 that made an emergency landing found it was improperly wired, Japan's Transport Ministry said Wednesday. The Transport Safety Board said in a report that the battery for the aircraft's auxiliary power unit was incorrectly connected to the main battery that overheated, although a protective valve would have prevented power from the auxiliary unit from causing damage. Flickering of the plane's tail and wing lights after it landed and the fact the main battery was switched off led the investigators to conclude there was an abnormal current traveling from the auxiliary power unit due to miswiring."
Communications

Drones Still Face Major Hurdles In US Airspace 166

Posted by Unknown Lamer from the drone-vs-drone dept.
coondoggie writes "Communications and effective system control are still big challenges unmanned aircraft developers are facing if they want unfettered access to U.S. airspace. Those were just a couple of the conclusions described in a recent Government Accountability Office report on the status of unmanned aircraft (PDF) and the national airspace. The bottom line for now seems to be that while research and development efforts are under way to mitigate obstacles to safe and routine integration of unmanned aircraft into the national airspace, these efforts cannot be completed and validated without safety, reliability, and performance standards, which have not yet been developed because of data limitations." The FAA and others seem mostly concerned about the drones hitting things if their GPS and ground communications are both disrupted.
Math

Full Review of the Color TI-84 Plus 233

Posted by Unknown Lamer from the the-80s-never-looked-so-cool dept.
KermMartian writes "The TI-84 Plus C Silver Edition isn't the first color-screen graphing calculator, or even TI's first color calculator, but it's a refresh of a 17-year-old line that many have mocked as antiquated and overpriced. From an advanced review model, the math features look familiar, solid, and augmented with some new goodies, while programming looks about on par with its siblings. The requisite teardown uncovers the new battery, Flash, ASIC/CPU, and LCD used in the device. Although there are some qualms about its speed and very gentle hardware upgrades beyond the screen, it looks to be an indication that TI will continue this inveterate line for years to come." Lots of screenshots and pictures of the innards too.

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