If you have access to a dead computer power supply you can use the case, power switch, wiring, and power port along with a 5v lead acid battery and a landscaping lamp bulb to create a rechargeable lantern. More »
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Hack a Dead PC Power Supply Into a Rechargeable Lantern
Mephistophocles writes “Ever since the beginning of Operation Pillar of Defense, hackers have been working overtime to strike a blow against the Israeli government’s computer systems, Finance Minister Yuval Steinitz said Sunday. No fewer than 44 million attacks have been recorded since the operation began five days ago — with nearly all of them failing, thanks to the recent strengthening of computer defense systems in Israel. Speaking at a special press conference at the Government Computing Center in Jerusalem about the cyber war against Israel that has accompanied Hamas’s rocket attacks, Steinitz said that hackers ‘are trying to disable the symbols of Israeli sovereignty, to enter web sites and install anti-Israel content, thus compromising information and data and damaging the government’s ability to serve the public.’ Most of the attacks, he said, were against government sites, like the Prime Minister’s Office site, and security-related sites, such as that of the Home Front Command, the body charged with informing Israelis on how to protect themselves in the event of an attack. Out of those 44 million-plus attacks on government and defense related sites, said Steinitz, only one succeeded – partially. One site, which he did not name, was ‘wobbly for a few minutes,’ but quickly recovered. Even though the government has been successful in warding off hack attacks, Steinitz said that government sites were fully backed up and mirrored, meaning that they could be replaced by a duplicate site instantly if the original site were compromised.” Read more of this story at Slashdot.
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Israeli Infrastructure Proves Too Strong For Anonymous
Trailrunner7 writes “Facebook this week will begin turning on secure browsing be default for its millions of users in North America. The change will make HTTPS the default connection option for all Facebook sessions for those users, a shift that gives them a good baseline level of security and will help prevent some common attacks. Facebook users have had the option of turning on HTTPS since early 2011 when the company reacted to attention surrounding the Firesheep attacks. However, the technology was not enabled by default and users have had to opt-in and manually make the change in order to get the better protection of HTTPS.” Read more of this story at Slashdot.
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Facebook Switching To HTTPS By Default
cervesaebraciator writes “Saturday an article was featured on Slashdot which expressed some hope, if just a fool’s hope, that a recent Republican Study Committee Brief could be a sign of broader national discussion about the value of current copyright law. When one sees such progress, credit is deservedly given. Unfortunately, others in Washington did not perhaps see this as worthy of praise. The committee’s executive director, Paul Teller, sent a memo today disavowing the earlier pro-copyright reform brief. From the memo: ‘Yesterday you received a Policy Brief or [sic] copyright law that was published without adequate review within the RSC and failed to meet that standard. Copyright reform would have far-reaching impacts, so it is incredibly important that it be approached with all facts and viewpoints in hand.’ People who live in districts such as Ohio’s 4th would do well to send letters of support to those who crafted the original brief. I cannot imagine party leadership will be happy with so radical a suggestion as granting copyright protection for the limited times needed to promote the progress of science and useful arts.” Read more of this story at Slashdot.
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GOP Study Committee Director Disowns Brief Attacking Current IP Law
sciencehabit writes “Here’s a twist: Scientists have designed a flexible, yarn-like artificial muscle that can also pack a punch. It can contract in 25 milliseconds—a fraction of the time it takes to blink an eye—and can generate power 85 times as great as a similarly sized human muscle. The new muscles are made of carbon nanotubes filled with paraffin wax that can twist or stretch in response to heat or electricity. When the temperature rises, the wax melts and forces the nanotubes to contract. Such artificial muscles, the researchers say, could power smart materials, sensors, robots, and even devices inside the human body.” Read more of this story at Slashdot.
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Artificial Muscles Pack a Mean Punch
Zothecula writes “Embattled photovoltaic solar power manufacturer Amonix announced on Tuesday that it has broken the solar module efficiency record, becoming the first manufacturer to convert more than a third of incoming light energy into electricity – a goal once branded ‘one third of a sun’ in a Department of Energy initiative. The Amonix module clocked an efficiency rating of 33.5 percent.” Read more of this story at Slashdot.
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Solar Panel Breaks "Third of a Sun" Efficiency Barrier
Dupple writes in with news about a discovery that should extend the life of your battery in the near future. “Powering cellular base stations around the world will cost $36 billion this year—chewing through nearly 1 percent of all global electricity production. Much of this is wasted by a grossly inefficient piece of hardware: the power amplifier, a gadget that turns electricity into radio signals. The versions of amplifiers within smartphones suffer similar problems. If you’ve noticed your phone getting warm and rapidly draining the battery when streaming video or sending large files, blame the power amplifiers. As with the versions in base stations, these chips waste more than 65 percent of their energy—and that’s why you sometimes need to charge your phone twice a day. It’s currently a lab-bench technology, but if it proves itself in commercialization, which is expected to start in 2013—first targeting LTE base stations—the technology could slash base station energy use by half. Likewise, a chip-scale version of the technology, still in development, could double the battery life of smartphones.” Read more of this story at Slashdot.
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Breakthrough Promises Smartphones that Use Half the Power
Hugh Pickens writes “NPR reports that Sweden’s program of generating energy from garbage is wildly successful, but recently its success has also generated a surprising issue: There is simply not enough trash. Sweden has recently begun to import about eight hundred thousand tons of trash from the rest of Europe per year to use in its power plants. Sweden already brings trash from Norway and hopes to get garbage from Italy, Romania, Bulgaria and the Baltic countries. Sweden creates energy for around 250,000 homes and powers one-fifth of the district heating system. Its incineration plants offer a look into the future where countries could potentially make money off of their trash instead of dumping. Landfilling of organic materials – a highly inefficient and environmentally degrading system (PDF) — has been forbidden in Sweden since 2005 and emissions of the greenhouse gas methane from landfills has fallen dramatically (PDF). ‘I hope that we instead will get the waste from Italy or from Romania or Bulgaria or the Baltic countries because they landfill a lot in these countries,’ says Catarina Ostlund, a senior advisor for the country’s environmental protection agency. ‘They don’t have any incineration plants or recycling plants, so they need to find a solution for their waste.'” Read more of this story at Slashdot.
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Sweden Imports European Garbage To Power the Nation