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未读条目 (20)
Slashdot
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Planck Telescope Is Coolest Spacecraft Ever
提交: July 4, 2009, 6:39am CDT 由 timothy
Tags: [编辑]
Hugh Pickens writes "Launched in May, BBC reports that Europe's Planck observatory has reached its operating temperature, a staggering minus 273.05C — just a tenth of a degree above what scientists term "absolute zero." and although laboratory set-ups have got closer to absolute zero than Planck, researchers say it is unlikely there is anywhere in space currently that is colder than their astronomical satellite. This frigidity should ensure the bolometers will be at their most sensitive as they look for variations in the temperature of the Cosmic Microwave Background (CMB) that are about a million times smaller than one degree — comparable to measuring from Earth the heat produced by a rabbit sitting on the Moon. Planck has been sent to an observation position around the second Lagrange point of the Sun-Earth system, L2, some 1.5 million km from Earth and Planck will help provide answers to one of the most important sets of questions asked in modern science — how did the Universe begin, how did it evolve to the state we observe today, and how will it continue to evolve in the future. Planck's objectives include mapping of Cosmic Microwave Background anisotropies with improved sensitivity and angular resolution, determination of the Hubble constant, testing inflationary models of the early Universe, and measuring amplitude of structures in Cosmic Microwave Background. 'We will be probing regimes that have never been studied before where the physics is very, very uncertain,' says Planck investigator Professor George Efstathiou from Cambridge University. 'It's possible we could find a signature from before the Big Bang; or it's possible we could find the signature of another Universe and then we'd have experimental evidence that we are part of a multi-verse.'" -
The Laptop, Circa 1968
提交: July 4, 2009, 5:28am CDT 由 timothy
Tags: [编辑]
Harry writes "In 1968, computers tended to occupy entire rooms, and were therefore hard to take with you. But Computerworld reports on Anderson Jacobson's 75-pound Teletype-terminal-in-a-case, an early attempt to let folks compute from anywhere. (Well, anywhere they had power and access to a telephone for the Teletype's acoustic coupler.) Wheels were optional."Read more of this story at Slashdot.
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40 Fresh Free Fonts To Enhance Your Designs | Fonts | instantShift
提交: July 4, 2009, 4:31am CDT 由 hueyriley
Tags: [编辑]
40 Fresh Free Fonts To Enhance Your Designs | Fonts | instantShift
Slashdot
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New Video of Tesla's Mass-Market Electric Car
提交: July 4, 2009, 4:22am CDT 由 timothy
Tags: [编辑]
Slatterz writes "The Tesla Roadster has almost mythical status among electric car enthusiasts. It's fast, with high torque over a wide RPM range, and can beat a Ferrari in terms of acceleration. Now Tesla has released new video of its upcoming new electric car, called the Model S, which Tesla Motors claims is the world's first mass produced fully-electric vehicle. Unlike the Lotus-Elise based Roadster, the Model S is a traditional sedan of the type millions of commuters might actually drive. Tesla claims it will fit seven people (if two of them are "children under 10"), and has mounted a rather large 17in LCD in the dash. Key to Telsa's future will be the evolution of lithium-ion battery technology. Tesla Motors claiming the new Model S can travel up to 300 miles on a single charge, but the battery will still take 45 minutes to quick-recharge." (And for those in countries where it matters, this article mentions that it should also be available in right-hand drive.)Read more of this story at Slashdot.
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Study Deconstructs Canadian Copyright Lobby Deception
提交: July 4, 2009, 3:19am CDT 由 Soulskill
Tags: [编辑]
An anonymous reader writes "A new Canadian study deconstructs how copyright lobby groups manipulate public opinion by laundering proposals through seemingly independent groups. The study started after the Conference Board of Canada was shown to have plagiarized several of its IP reports and now shows the connections that all lead through the MPAA and RIAA. Michael Geist writes, 'It is not just that these reports all receive financial support from the same organizations and say largely the same thing. It is also that the reports each build on one another, creating the false impression of growing momentum and consensus on the state of Canadian law and the need for specific reforms.'"Read more of this story at Slashdot.
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AOL Shuts Down CompuServe
提交: July 4, 2009, 2:08am CDT 由 Soulskill
Tags: [编辑]
Oracle Goddess writes "After 30 years, CompuServe is all but dead, as AOL has pulled the plug on the once-great company. The original CompuServe service, first offered in 1979, provided its users with addresses such as 73402,3633 and was the first major online service. CompuServe users will be able to use their existing CompuServe Classic (as the service was renamed) addresses at no charge via a new e-mail system, but the software that the service was built on has been shut down. Tellingly, the current version of the service's client software, CompuServe for Windows NT 4.0.2, dates back to 1999."Read more of this story at Slashdot.
Lifehacker
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Tips, Projects, and Great Eats for Your Fourth of July Weekend [Summer]
提交: July 4, 2009, 1:00am CDT 由 Kevin Purdy
Tags: [编辑]
Whether you're just grilling, picnic lunching or heading out on a wilderness excursion for the holiday weekend, we've got a few recipes, projects, and ideas to run by you, cultivated from years of gathering clever outdoor hacks.Photo by Nicholas_T.
It's by no means exhaustive or conclusive, but we wanted to provide an overview of some of the most clever or handy stuff we've seen involving nature's wonder and the great outdoors, along with its sometimes unpleasant side effects. Check out what interests you, get inspired for the weekend or a better-planned one, and, please, tell us what you're going to be doing outdoors this weekend, and how you're doing it, in the comments below. In the meantime, click through to the galleries to enjoy some of our favorite tips, projects, and food fun for your time outside this Fourth of July Weekend.
Click through on any of the images below for the full goods.
Lotions, Repellents, and Antidotes
Camping and Surviving
We're talking homemade insect repellent, bug bite relief, and choosing the right sunblock.
Outdoor Projects
Start a fire with your cellphone, build a great campfire, tie killer knots, and more.
Summer Drinks
Build an outdoor movie theater, a handy beverage barge for poolside fun, and then some with a few fun outdoor DIYs.
Summer Eats
From better lemonade to beer cocktails to cold soda fast, we can quench that thirst.
Avoid picnic disasters, grill the perfect burger, get to know your edible outdoor greens, and oh-so-much more.
Slashdot
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CrunchPad Will Be a 'Dead Simple Web Tablet'
提交: July 4, 2009, 12:56am CDT 由 Soulskill
Tags: [编辑]
Hugh Pickens writes "TechCrunch's Michael Arrington has been talking for a year about building a touch-screen tablet for Web surfing and now it appears that the CrunchPad is close to becoming a reality. 'We're going to make some really big announcements,' said Arrington, who predicted a prototype would be ready for unveiling by the end of July. The purpose of the CrunchPad will be very simple: surfing the Web. Turn it on and up comes a browser — 'an Internet consumption device,' for reading, checking e-mail or watching video. The CrunchPad will not have a hard drive or keyboard and photos of the latest prototype show a device with a 12 inch screen. 'The screen is now flush with the case and we've decreased the overall thickness to about 18 mm,' writes Arrington. 'The case will be aluminum, which is more expensive than plastic but is sturdier and lets us shave a little more off the overall thickness of the device.' The CrunchPad boots directly into the browser with a Linux-based operating system and a WebKit-based browser. A video of an earlier CrunchPad prototype in action shows a device which, unlike the iPhone, runs flash. 'The next time we talk about the CrunchPad publicly will be at a special press and user event in July in Silicon Valley,' writes Arrington. 'We're full on. These prototypes are real.'"Read more of this story at Slashdot.
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Slashdot
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Jammie Thomas To Appeal $1.9 Million RIAA Verdict
提交: July 4, 2009, 11:44pm CDT 由 Soulskill
Tags: [编辑]
CNet reports that the lawyers representing Jammie Thomas-Rasset have confirmed she will be fighting the $1.9 million verdict handed down in her case against the RIAA. "The Recording Industry Association of America said on Monday that it had made a phone call to Sibley and law partner Kiwi Camara last week to ask whether Thomas-Rasset wanted to discuss a settlement. An RIAA representative said that its lawyers were told by Sibley that Thomas-Rasset wasn't interested in discussing any deal that required her to admit guilt or pay any money. ... 'She's not interested in settling,' attorney Joe Sibley said in a brief phone interview. 'She wants to take the issue up on appeal on the constitutionality of the damages. That's one of the main arguments — that the damages are disproportionate to any actual harm.'"Read more of this story at Slashdot.
Solidot
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日本帝国陆军地图将上网
提交: July 4, 2009, 11:27pm CDT 由 matrix
Tags: [编辑]
time 写道 "日本帝国陆军档案中的亚太地图将上网供研究之用。 这些地图详细记录了日本占领地和殖民地的地形，其中一些可回溯到1880年代。大阪大学教授Shigeru Kobayashi说这些地图可以显示东南亚地区哪些部分森林被开伐，也可以显示从当时到现代城市的变迁。制作团队认为这是面向所有人的极富教育价值的知识共享。 直到二战结束，日本皇军绘制、复制和偷窃了大量地图，涵括从阿拉斯加到澳洲、从朝鲜半岛到巴基斯坦的辽阔地域。其中绘制最多的是中、台、朝鲜半岛、库页岛等曾经被日本占领或殖民的地区。 这一计划受到一些来自前日军占领地的批评，对此Shigeru Kobayashi回答：“我们明了道义责任，我们的目的是增强国际友好交流。” 项目网址" -
为满足暴雪要求，网易规避政策限制
提交: July 4, 2009, 10:30pm CDT 由 matrix
Tags: [编辑]
《第一财经日报》报道，网易向纳斯达克交易所递交的最新年报20-F，曝光了网易和《魔兽世界》开发商暴雪公司之间的利益输送安排，网易为了规避中国法律法规禁区，并满足暴雪保证费要求而费尽苦心。 网易首度披露其与暴雪成立合资企业“暴网”(StormNet)，为暴雪旗下的《魔兽世界》、《魔兽争霸》、《星际争霸》等多款游戏提供在华运营支持。整个利益输送链条即是：丁磊成立上海网之易代理暴雪游戏，上海网之易要先付给暴雪代理费等各种费用，然后把剩下的利润以支付技术支持的形式输送给暴网，暴网的收入则由网易和暴雪按50%均分，暴网收入合并入网易上市公司报表。而如果网之易运营不好，收入不够多，那么网易要贴钱给暴雪。网易和网之易要为《魔兽世界》、《星际争霸2》、《魔兽争霸3》及战网付出总计确认费用为20.5710亿元（3.015亿美元），这还不包括购买运营所需的硬件设备等费用，而且，网之易在三年中需最少提供1.1亿元用于购买支持所代理游戏运营的硬件设施。根据网易今年一季度财报，其总营收为7.817亿元，净利润为4.17亿元。网易的现金和定期存款为60亿元。
Slashdot
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Symantec Exec Warns Against Relying On Free Antivirus
提交: July 4, 2009, 10:29pm CDT 由 Soulskill
Tags: [编辑]
thefickler writes "Clearly, the rise of free antivirus is starting to worry Symantec, with one of their top executives warning consumers not to rely on free antivirus software (including Microsoft's Security Essentials). 'If you are only relying on free antivirus to offer you protection in this modern age, you are not getting the protection you need to be able to stay clean and have a reasonable chance of avoiding identity theft,' said David Hall, a Product Manager for Symantec. According to Hall, there is a widening gap between people's understanding of what protection they need and the threats they're actually facing."Read more of this story at Slashdot.
del.icio.us/popular
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Freemium and Freeconomics
提交: July 4, 2009, 10:27pm CDT 由 sagenet
Tags: [编辑]
Freemium and Freeconomics -
Short Is Sweet: Postcards Begat SMS Begat Twitter
提交: July 4, 2009, 10:23pm CDT 由 hombrelobo
Tags: [编辑]
Short Is Sweet: Postcards Begat SMS Begat Twitter
All about Linux
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Update your Linux Kernel in real time without rebooting your machine
提交: July 4, 2009, 9:23pm CDT
Tags: [编辑]
When ever Ubuntu updates the Linux kernel to a more recent version, I have to go through the rigmarole of rebooting my machine for the changes to take effect. While for a home user, it may not be such a big thing, while running Linux in critical situations, it may not always be feasible to reboot the server each time the kernel gets updated because running applications have to be stopped, and daemons have to be terminated for the reboot to take place - which inevitably leads to loss of time and inconvenience to others.Enter a new technology called Ksplice. ...
Slashdot
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The Chemistry of Firework Displays
提交: July 4, 2009, 9:16pm CDT 由 Soulskill
Tags: [编辑]
Ponca City, We love you writes "David Ropeik writes at MSNBC that there's a lot more to making a basic firework display than putting a fuel source and an oxidizer together. Pyrotechnic chemists, who are trying to create bedazzlement instead of bang, don't want their work to explode, but to burn for a bit, so it gives a good visual show. To achieve the desired effect, the sizes of the particles of each ingredient have to be just right, and the ingredients have to be blended together just right. To slow down the burning, chemists use big grains of chemicals, in the range of 250 to 300 microns, and they don't blend the ingredients together very well, making it harder for the fuel and oxidizer to combine and burn, thus producing a longer and brighter effect. Surprisingly few emitters are used in pyrotechnics, and there are no commercially useful emitters in blue-green to emerald green in the 490-520 nm region. Energy from the fire in the basic fuel is transferred to the atoms of the colorant chemicals, exciting the electrons in those chemicals into a higher energy state. As they cool down, they move back to a lower state of energy, emitting light. So, you actually see the colors in fireworks as they're cooling down. To get the really tricky shapes, like stars or hearts, the colorant pellets are pasted on a piece of paper in the desired pattern. That paper is put in the middle of the shell with explosive charges above it, and below. When those charges go off, they burn up the paper, and send the ignited colorant pellets out in the same pattern they were in on the sheet of paper, spreading wider apart as they fly."Read more of this story at Slashdot.
Solidot
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IE8插件Adblock IE:屏蔽网络广告
提交: July 4, 2009, 8:35pm CDT 由 matrix
Tags: [编辑]
匿名读者 写道 "上次介绍过Chrome的应用扩展AdSweep-一个用于屏蔽广告的插件，它很小巧却很强大。只可惜，开发者目前已经停止此插件的后续开发，不得不为之叹息… 现实生活中人们经常使用的还是IE，或是基于IE核心构建的浏览器（比方说大名鼎鼎的马桶、世界之窗），FF、可乐米、Opera这些很牛的browser在国内可谓“不得民心”（有点点夸张，但是用来形容各家非IE系浏览器在国内市场占有率的窘境还是比较恰当的，毕竟两三亿网民只是为了上网而上网，浏览器能用就行，没那么麻烦，再说时下正Hi的网络银行和支付宝对非IE支持得并不理想，没辙啊）。基数如此庞大，必然会有不少对网络广告特别是某些低俗广告极度厌恶的童鞋的存在，这时就需要找个帮手了。鉴于目下，微软大爷已通过正规渠道（Update推送）将大部分IE升级至IE8了，Adblock IE便成了一个不错的选择。 点这里下载Adblock IE（备用地址：SkyDrive）
del.icio.us/popular
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Dark Roasted Blend: Spectacular Steampunk Art Update, Part 2
提交: July 4, 2009, 6:31pm CDT 由 raspop
Tags: [编辑]
Dark Roasted Blend: Spectacular Steampunk Art Update, Part 2
Slashdot
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Behind the First Secure Quantum Crypto Network
提交: July 4, 2009, 6:11pm CDT 由 Soulskill
Tags: [编辑]
schliz writes "Researchers behind the world's largest quantum encrypted network said the technology could secure business networks inside six years. The prototype Quantum Key Distribution network was built by the Secure Communication Based On Quantum Cryptography (SECOQC) group last year. It is described in a journal paper published by the Institute of Physics this week, which includes details on how it is based on the trusted-repeater paradigm."Read more of this story at Slashdot.
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