Earth

An Exercise To Model a "Solar Radiation Katrina" 225

Hugh Pickens writes in with an update on the warnings we discussed a year back about the dangers of a "solar Katrina." Now NPR is reporting on a tabletop exercise mounted in Boulder, Colorado by government workers attempting to model the effects of a worst-case solar electromagnetic storm. "...an exercise held in Boulder, Colorado, has investigated what might happen if the Earth were struck by a solar storm as intense as the huge storms that occurred in 1921 and 1859 — a sort of solar Katrina — and researchers found that the impact is likely to be far worse than in previous solar storms because of our growing dependence on satellites and other electronic devices that are vulnerable to electromagnetic radiation. 'In many ways, the impact of a major solar storm resembles that of a hurricane or an earthquake,' says FEMA Administrator Craig Fugate, except that a solar Katrina would cause damage in a much larger area — power could be knocked out almost simultaneously in countries from Sweden to Canada and the US. In the exercise, the first sign of trouble came when radiation began disrupting radio signals and GPS devices, says Tom Bogdan, who directs the Space Weather Prediction Center. Ten or 20 minutes later electrically charged particles 'basically took out' most of the commercial satellites that transmit telephone conversations, TV shows, and huge amounts of data we depend on in our daily lives. But the worst damage came nearly a day later, when the solar storm began to induce electrical currents in high voltage power lines strong enough to destroy transformers around the globe, leaving millions of people in northern latitudes without power."
Earth

Caltech Makes Flexible, 86% Efficient Solar Arrays 439

strredwolf writes "Caltech has released a flexible solar array that converts 95% of single-wavelength incandescent light and 86% of all sunlight into electricity. Instead of being flat-panel, they stand thin silicon wires in a plastic substrate that scatters the light onto them. The total composition is 98% plastic, 2% wire — the amount of silicon used is 1/50th that of ordinary panels. So as soon as they can get these to market, solar could be very viable and cheap to produce." Update: 03/01 21:02 GMT by KD : Reader axelrosen points out evidence that the 80%+ efficiency figure is wrong. MIT's Tech Review, in covering the Caltech announcement, says that the new panel's efficiency is in the 15%-20% range — which is competitive with the current state of the art. And the Caltech panel should be far cheaper to manufacture.
Input Devices

Will the Serial Console Ever Die? 460

simpz writes "Will the serial port as a console connection ever be displaced — especially for devices such as switches, routers, SAN boxes, etc.? In one sense it's a simple connection. But it is the only current port that, in order to use, you need to know about wiring / baud rates / parity, etc. It has non-standard pinouts. And it is becoming too slow to upload firmware to dead devices, as the firmware updates get larger. Also, the serial port is rapidly disappearing from new laptops — which is where you often really need it, in data centers. Centronics, PS/2, and current loop are mostly defunct. Is there any sign on the horizon of a USB console connection?"
Power

Vermont May Revoke Nuclear Plant License 163

mdsolar writes "Following the Vermont Senate's 26-to-4 vote not to approve a 20-year license extension for the Vermont Yankee nuclear power plant, the Vermont Public Service Board will consider revoking its operating license as well. Meanwhile, the plant continues to operate without its Director of Nuclear Safety Assurance, who has been placed on administrative leave; the Nuclear Regulatory Commission has merely issued a Demand for Information rather than shutting down a plant that is lacking a full complement of safety personnel. It may be that the NRC is not capable of doing what is needed with regard to Entergy, the plant owner, which is also facing prosecution by the Mississippi Attorney General."
Businesses

Major Electronics Vendors Accused of Price Fixing 125

Lucas123 writes "After the DOJ launched an investigation last fall into price fixing by major optical disk drive manufacturers, a home electronics retail store filed a class-action lawsuit this week seeking triple damages for what it is claiming to be long-standing collusion among Sony, Samsung, Toshiba, LG Electronics and Hitachi to raise and fix prices on the drives. The suit claims the vendors used trade organization forums as meeting places to discuss the price fixing. 'These are big Asian smoke-stack industries where they're investing in big fabrication plants. You can't have a technology destroy the business,' said the attorney representing the plaintiff. 'If you fire up a big fab plant with CRT tubes, and the next generation technology destroys it, then you have a big fab plant manufacturing buggy whips. So they have to make sure the price points for these [newer] technologies ... don't destroy existing markets.'"
The Military

Defending Against Drones 368

theodp writes "The US has not had to truly think about its air defense since the Cold War. But as America embraces the use of unmanned aerial vehicles, Newsweek says it's time to consider how our greatest new weapon may come back to bite us. Smaller UAVs' cool, battery-powered engines make them difficult to hit with conventional heat-seeking missiles. And while Patriot missiles can take out UAVs, at $3 million apiece such protection carries a steep price tag, especially if we have to deal with $500 DIY drones."
Space

Project M Could Send Every Scientist To the Moon, By Proxy 150

An anonymous reader writes with this interesting bit of speculation: "NASA can put humanoids on the Moon in just 1000 days. They would be controlled by scientists on Earth using motion capture suits, giving them the feeling of being on the lunar surface. If they can achieve this for real, the results for science research of our satellite could be amazing."
Cellphones

What Has Your Phone Survived? 422

NotAnIndividual writes "On an ice fishing trip two months ago, I lost my iPhone somewhere in the snow. I searched and searched, but to no avail. But just this weekend when moving the ice hut, lo and behold there it was. I quickly threw it into a bag of rice and placed it under a lamp to defrost. Three hours later I plugged it in. I wasn't expecting much. I mean, really, it had been frozen in snow for the last two months! To my surprise, the Apple logo popped up. I put in the SIM card and voila, my iPhone was back. My apps, my contacts, my music and more importantly my life were back. And this is the same iPhone that I dropped in a cup of coffee a few months ago! This got me wondering how much damage a cell phone can actually take. How have other Slashdot users punished their phones without actually killing them completely?"
Communications

LG Launches Watch Phone In India 109

roh2cool writes "If you are a watch freak and also happen to be a fan of ultra rare (and expensive) gadgets, this might just interest you. The LG GD910 watch phone looks like a normal watch – except for the fact that it can double up as your mobile phone when needed. 'It is quite thin at just 13.9mm and packs in 3G and Video Calling capabilities as well. The phone is quite stylish and the front fascia is covered by scratch-proof tempered glass. It comes with a Bluetooth headset so you don’t have to keep talking like David Hasselhoff talked to his super-car KITT in the “Knight Rider” series.'"
Data Storage

Exploring Advanced Format Hard Drive Technology 165

MojoKid writes "Hard drive capacities are sometimes broken down by the number of platters and the size of each. The first 1TB drives, for example, used five 200GB platters; current-generation 1TB drives use two 500GB platters. These values, however, only refer to the accessible storage capacity, not the total size of the platter itself. Invisible to the end-user, additional capacity is used to store positional information and for ECC. The latest Advanced Format hard drive technology changes a hard drive's sector size from 512 bytes to 4096 bytes. This allows the ECC data to be stored more efficiently. Advanced Format drives emulate a 512 byte sector size, to keep backwards compatibility intact, by mapping eight logical 512 byte sectors to a single physical sector. Unfortunately, this creates a problem for Windows XP users. The good news is, Western Digital has already solved the problem and HotHardware offers some insight into the technology and how it performs."
Hardware Hacking

Make Your Own Open Source Retro Arcade-Style Clock 77

ptorrone writes "Hardware hacker 'Ladyada' has released an open source, retro, arcade-style, table-tennis-for-two clock called the MONOCHRON. According to the MONCHRON project page the desire was 'to make a clock that was ultra-hackable, from adding a separate battery-backed RTC to designing the enclosure so you could program the clock once its assembled.' It includes an ATmega328 processor (with Arduino stk500 bootloader for easy hacking. It's completely open source hardware: all firmware, layout, and CAD files are yours to mess with."
Power

ARM Designer Steve Furber On Energy-Efficient Computing 195

ChelleChelle writes "By now, it has become evident that we are facing an energy problem — while our primary sources of energy are running out, the demand for energy is greatly increasing. In the face of this issue, energy-efficient computing has become a hot topic. For those looking for lessons, who better to ask then Steve Furber, the principal designer of the ARM (Acorn RISC Machine), a prime example of a chip that is simple, low power, and low cost. In this interview, conducted by David Brown of Sun's Solaris Engineering Group, Furber shares some of the lessons and tips on energy-efficient computing that he has learned through working on this and subsequent projects."
Displays

Game Testing ATI's Six-Screen Eyefinity System 105

Barence writes "ATI has carted its monstrous six-monitor Eyefinity gaming system to the offices of PC Pro for an extensive hands-on session. The game was Race Driver: GRID, the resolution was a mighty 5,760 x 2,160, and the overall effect was ... a bit hit and miss. There's no denying it has potential, and the level of immersion sounds impressive, but this report complains of problems with bezel correction that currently tarnish the overall effect."
Data Storage

Avoiding a Digital Dark Age 287

al0ha writes to recommend a worthwhile piece up at American Scientist on the problems of archiving and data preservation in an age where all data are stored digitally. "It seems unavoidable that most of the data in our future will be digital, so it behooves us to understand how to manage and preserve digital data so we can avoid what some have called the 'digital dark age.' This is the idea — or fear! — that if we cannot learn to explicitly save our digital data, we will lose that data and, with it, the record that future generations might use to remember and understand us. ... Unlike the many venerable institutions that have for centuries refined their techniques for preserving analog data on clay, stone, ceramic or paper, we have no corresponding reservoir of historical wisdom to teach us how to save our digital data. That does not mean there is nothing to learn from the past, only that we must work a little harder to find it."
Power

Entergy Admits 2005 Tritium Leak 385

mdsolar writes "The leaking Vermont Yankee nuclear power plant was hit last week by a whistleblower allegation that a previous tritium leak had occurred. Now the parent company, Entergy, has admitted the occurrence of at least one prior leak to the Nuclear Regulatory Commission. This is particularly significant for three reasons: because the leak occurred in pipes that company officials later testified under oath did not exist, because the Vermont Senate will likely soon vote to deny Entergy a needed approval to extend the power plant's license for another 20 years, and because President Obama just put taxpayers on the hook for new nuclear power plants in Georgia."
Power

Creating Electric Power From Light Using Gold Nanoparticles 77

cyberfringe writes "Professor of Materials Science Dawn Bonnell and colleagues at the University of Pennsylvania have discovered a way to turn optical radiation into electrical current that could lead to self-powering molecular circuits and efficient data storage. They create surface plasmons that ride the surface of gold nanoparticles on a glass substrate. Surface plasmons were found to increase the efficiency of current production by a factor of four to 20, and with many independent parameters to optimize, enhancement factors could reach into the thousands. 'If the efficiency of the system could be scaled up without any additional, unforeseen limitations, we could conceivably manufacture a 1A, 1V sample the diameter of a human hair and an inch long,' Prof. Bonnell explained. The academic paper was published in the current issue of ACS Nano. (Abstract available for free.) The significance? This may allow the creation of nano-sized circuits that can power themselves through sunlight (or another directed light source). Delivery of power to nanodevices is one of the big challenges in the field."
Power

Fuel Cell Marvel "Bloom Box" Gaining Momentum 562

Many sources are continuing to excitedly report on the latest in a long line of startups chasing the holy grail of power sources. This incarnation, the "Bloom Box" from Bloom Energy, promises a power-plant-in-a-box that you can literally put in your backyard, and has received backing from companies like eBay, Google, Staples, FedEx, and Walmart. CBS recently aired an exclusive interview with K.R. Sridhar about his shiny new box. "So what is a Bloom Box exactly? Well, $700,000 to $800,000 will buy you a 'corporate sized' unit. Inside the box are a unique kind of fuel cell consisting of ceramic disks coated with green and black 'inks.' The inks somehow transform a stream of methane (or other hydrocarbons) and oxygen into power, when the box heats up to its operating temperature of 1,000 degrees Celsius. To get a view of the cost and benefits, eBay installed 5 of the boxes nine months ago. It says it has saved $100,000 USD on energy since."
Hardware

Junctionless Transistor Could Simplify Chip Making 100

An anonymous reader writes "A novel transistor architecture has been developed by a team of researchers led by Jean-Pierre Colinge at Tyndall National Institute at Cork, Ireland. Not many technology developments can be truly described as 'a breakthrough' or "revolutionary' but this might just fit the bill. It does depend on the extremely small dimensions of silicon nanowires just a few dozens of atoms wide. EE Times picked up on an announcement of a paper on the topic being published by Nature Nanotechnology."
The Internet

Things To Look For In a Web Hosting Company? 456

v1x writes "I have had an account with my current web hosting company for a few years, with 3 domains being hosted there (using Linux/PHP/MySQL). Recently, all three of these websites stopped functioning, and upon checking the site, all my directory structures were intact, whereas all of the files were gone. Upon contacting their technical support, I was given the run-around, and later informed by one of their administrators that none of the files could be restored. Needless to say that I am looking for a different web hosting company at this point, but I would like to make a more informed choice than I did with the current company. I have read a similar Slashdot article (from 2005) on the topic, but the questions posed there were slightly different." Reader mrstrano has a similar question: "I am developing a web application and, after registering the domain, I am now looking for a suitable web hosting provider. It should be cheap enough so I can start small, but should allow me to scale up if the web site is successful (as I hope). The idea is simple enough so I do not need other investors to implement it. This also means that I don't have a lot of money to put on it at the moment. Users of the website will post their pictures (no, it's not going to be a porn website), so scalability might be an issue even with a moderately high number of users. I would like to find a good web hosting provider from day one, so I don't have to go through the pain of a data migration. Which web host would you choose?"

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