JetLib News

An anonymous reader writes “The IEEE MAN/LAN Standards Committee — better known as the people who brought us Ethernet, WiFi, and Bluetooth — is celebrating its 30th anniversary next week. This article has interviews with the original committee chairman and other veteran members, and reveals some of the inside situation. It also looks at some of the upcoming 802.x standards including one that sends data by modulating visible light.”

Source: Historic IEEE 802 Group Looks Back and Forward

Julie188 writes “After more than three decades of service to researchers and staff stationed at the bottom of the world, the dome at the Amundsen-Scott South Pole Station was deconstructed this austral summer. Designed and constructed by the Seabees — the construction battalions of the US Navy — in the early 1970s, the dome’s geodesic design provided a unique solution to the challenges posed to engineers trying to build structures at the South Pole. The dome is being returned to southern California where it will be held in storage. It could possibly be trotted out as an exhibit in a new US Navy Seabees museum.”

Source: Farewell To the South Pole Dome

ElectricSteve writes “It’s been a long time coming. While Arthur C. Clarke’s geosync satellites have taken to space, and James Bond’s futuristic mobile technology has become commonplace, still the dream of sustained personal flight has eluded us — until now. At $86,000, the Martin Aircraft jetpack costs about as much as a high-end car, achieves a 30-minute flight time, and is fueled by regular gasoline. A 10% deposit buys you a production slot for 12 months hence.” Here’s a video of some indoor test flights. This isn’t Buck Rogers’s jetpack — it’s about 5 by 5 feet and weighs more than the average human. You won’t be able to commute with it (the FAA has not certified this class of device) so it’s recreational only for now.

Source: The World’s First Commercially Available Jetpack

netbuzz writes “When the NASDAQ stock index hit its all-time high of 5,133 on March 10, 2000, it had more than doubled in a year and the dot-com bubble was already leaking in a big way. A week later the NASDAQ had fallen 9 percent. A year later it was below 2000. Gone were such poster children of the era as Pets.com, Kozmo, and — who could forget? — Whoopi Goldberg’s Flooz. Here’s a look back.”

Source: Dot-Com Craze Peaked 10 Years Ago This Week

harrymcc writes “Windows has been so dominant for so long that it’s easy to forget Windows 1.0 was vaporware, mocked both outside and inside of Microsoft — and that its immediate successors were considered stopgaps until OS/2 was everywhere. Tandy Trower, the product manager who finally got Windows 1.0 out the door a quarter century ago, has written a memoir of the experience. (He thought being assigned the much-maligned project was Microsoft’s fiendish way of trying to get rid of him.) The story involves such still-significant figures as Bill Gates, Steve Ballmer, Ray Ozzie, and Nathan Myhrvold; Trower left Microsoft only in November of 2009 after 28 years with the company.”

Source: The Secret Origin of Windows

RABarnes writes “Scientific American has posted an article about the political efforts of natural gas and electric utilities to limit the growth of wind-generated electricity. Although several of the points raised by the utilities and carbon-based generators are valid, the basic driver behind their efforts is that wind-generation has now successfully penetrated the wholesale electricity market. Wind was okay until it became a meaningful competitor to the carbon dioxide-producing entities. Among the valid points raised by the carbon-based generators are concerns about how the cost of electricity transmission are allocated and how power quality can be improved (wind generation — from individual sites — is hopelessly variable). But there are fixes for all of the concerns raised by the carbon-based entities and in almost all cases they have been on the other side of the question in the past.”

Source: Gas Wants To Kill the Wind

Doofus writes “The Washington Post has published in today’s paper an article titled ‘Why it’s so hard for Toyota to find out what’s wrong‘ by Frank Ahrens on the Toyota situation and the difficulties of adequately conveying to Senators and Representatives — most of whom are non-technical — the debugging process. Ahrens interviews Giorgio Rizzoni, an ‘expert in failure analysis’ at Ohio State, who describes the iterations of testing that NHTSA will likely inflict on the Toyota sample cars they have purchased, and then moves into the realm of software and systems verification: ‘He explained that each vehicle contains “layers of computer code that may be added from one model year to next” that control nearly every system, from acceleration to braking to stability. Rizzoni said this software is rigorously tested, but he added: “It is well-known in our community that there is no scientific, firm way of actually completely verifying and validating software.”‘ Ahrens ends the piece with a quote from a 2009 LA Times interview with former UCLA psychology professor Richard Schmidt about how user reports are often unreliable: ‘When the driver says they have their foot on the brake, they are just plain wrong. The human motor system is not perfect, and it doesn’t always do what it is told.’”
Toyota is currently planning an event to challenge evidence presented by professor David W. Gilbert that called into question Toyota’s electronic throttle system.

Source: Toyota’s Engineering Process and the General Public

theodp writes “The teaching profession gets schooled in cover stories from the big pubs this weekend, as Newsweek makes the case for Why We Must Fire Bad Teachers, and the NY Times offers the more hopeful Building a Better Teacher. For the past half-century, professional educators believed that if they could only find the right pedagogy, the right method of instruction, all would be well. They tried New Math, open classrooms, Whole Language — but nothing seemed to achieve significant or lasting improvements. But what they ignored was the elephant in the room — if the teacher sucks, the students suck. Or, as the Times more eloquently puts it: ‘William Sanders, a statistician studying Tennessee teachers with a colleague, found that a student with a weak teacher for three straight years would score, on average, 50 percentile points behind a similar student with a strong teacher for those years. Teachers working in the same building, teaching the same grade, produced very different outcomes. And the gaps were huge.’ But what makes a good teacher? When Bill Gates announced his foundation was investing $335 million in a project to improve teaching quality, he added a rueful caveat. ‘Unfortunately, it seems the field doesn’t have a clear view of what characterizes good teaching,’ Gates said. ‘I’m personally very curious.’”

Source: Improving Education Through Better Teachers

Hugh Pickens writes “The NY Times has an interesting article about Human-flesh search engines — renrou sousuo yinqing — that have become a phenomenon in China: they are a form of online vigilante justice in which Internet users hunt down and punish people who have attracted their wrath. The goal is to get the targets of a search fired from their jobs, shamed in front of their neighbors, or run out of town. It’s crowd-sourced detective work, pursued online — with offline results. ‘In the United States, traditional media are still playing the key role in setting the agenda for the public,’ says Jin Liwen. ‘But in China, you will see that a lot of hot topics, hot news or events actually originate from online discussions.’ In one well known case, when a video appeared in China of a woman stomping a cat to death with the sharp point of her high heel, the human flesh search engine tracked the kitten killer’s home to the town of Luobei in Heilongjiang Province, in the far northeast, and her name — Wang Jiao — was made public, as were her phone number and her employer. ‘Wang Jiao was affected a lot,’ says one Luobei resident. ‘She left town and went somewhere else.’ The kitten-killer case didn’t just provide revenge; it helped turn the human-flesh search engine into a national phenomenon. Searches have also been directed against cheating spouses, corrupt government officials, amateur pornography makers, Chinese citizens who are perceived as unpatriotic, journalists who urge a moderate stance on Tibet and rich people who try to game the Chinese system.”

Source: China’s Human Flesh Search Engine

whisper_jeff writes “I work in a design studio where the production director is also the owner’s son (translation = he can do no wrong). He is fond of accessing a designer’s computer via filesharing and working directly on files off of the designer’s computers rather than transferring the files to his computer to work on them there. In so doing, he causes the designer’s computer to grind to a near-halt as the harddrive is now tasked with his open/save requests along with whatever the designer is doing. Given that there is no way he’s going to change his ways (since he doesn’t see anything wrong with it…), I was wondering if there was a way to throttle a user’s shared access to a computer (Mac OSX 10.5.8) so that his remote working would have minimal impact on our work. Google searches have revealed nothing helpful (maybe I should Bing it… :) so I was hoping someone with more technical expertise on Slashdot could offer a suggestion.”

Source: Throttle Shared Users With OS X — Is It Possible?