Slashdot Mirror

KentuckyFC writes "The PageRank algorithm (pdf) behind Google's success was developed by Sergey Brin and Larry Page in 1998. It famously judges a page to be important if it is linked to by other important pages. This circular definition is the basis of an iterative mechanism for ranking pages. Now a paper tracing the history of iterative ranking algorithms describes a number of earlier examples. It discusses the famous HITS algorithm for ranking web pages as hubs and authorities developed by Jon Kleinberg a few years before PageRank. It also discusses various approaches from the 1960s and 70s for ranking individuals and journals based on the importance of those that endorse them. But the real surprise is the discovery of a PageRank-type algorithm for ranking sectors of an economy based on the importance of the sectors that supply them, a technique that was developed by the Harvard economist Wassily Leontief in 1941."

Scifi83 writes "A team of researchers at the Center for Automotive Research at Stanford (CARS) has filled the trunk of an Audi TTS with computers and GPS receivers, transforming it into a vehicle that drives itself. The car will attempt Pikes Peak without a driver at race speeds, something that's never been done."

blee37 sends along a writeup from the School of Medicine at Stanford University on their pneumatic tube delivery system, used for sending atoms not bits. Such systems are in use in hospitals nationwide; the 19th-century technology is enhancd by recent refinements in pneumatic braking. "Every day, 7,000 times a day, Stanford Hospital staff turn to pneumatic tubes, cutting-edge technology in the 19th century, for a transport network that the Internet and all the latest Silicon Valley wizardry can't match: A tubular system to transport a lab sample across the medical center in the blink of an eye."

pickens writes "In a victory for Fair Use, Stanford Law School's Fair Use Project has announced that the estate of 20th century literary giant James Joyce, author of the landmark novel Ulysses, has agreed to pay $240,000 in attorneys' fees to Stanford University Consulting Professor Carol Shloss and her counsel in connection with Shloss's lawsuit to establish her right to use copyrighted material in her scholarship on the literary work of James Joyce. When Shloss used copyrighted materials in her biography of Joyce's daughter Lucia, titled Lucia Joyce: To Dance in the Wake, she had to excise a substantial amount of source material from the book in response to threats from the Joyce Estate. However following publication of the book, Shloss sued the Estate to establish her right to publish the excised material. The parties reached a settlement regarding the issue in 2007, permitting the publication of the copyrighted material in the US. Following the settlement, Shloss asked the Court to order the Estate to pay attorneys' fees of more than $400,000. She has now agreed to accept an immediate payment of $240,000 in return for the dismissal of the Estate's appeal. 'This case shows there are solutions to the problem Carol Shloss faced other than simple capitulation,' says Fair Use Project Executive Director Anthony Falzone, who led the litigation team."

David Orenstein writes "Stanford Computer Science researchers are developing Frankencamera, an open source, fully programmable and finely tunable camera that will allow computational photography researchers and enthusiasts to develop and test new ideas and applications — no longer limited by the features a camera manufacturer sees fit to supply. Disclosure: The submitter is a science writer for Stanford and wrote the linked article."

David Orenstein writes "Stanford Computer Science researchers are developing Frankencamera, an open source, fully programmable and finely tunable camera that will allow computational photography researchers and enthusiasts to develop and test new ideas and applications — no longer limited by the features a camera manufacturer sees fit to supply. Disclosure: The submitter is a science writer for Stanford and wrote the linked article."

trbdavies writes "The Honolulu Advertiser reports that the Honolulu City Council is considering a bill to make it illegal to 'bring onto transit property odors that unreasonably disturb others or interfere with their use of the transit system, whether such odors arise from one's person, clothes, articles, accompanying animal or any other source.' So if you stink up the bus, you could 'be fined up to $500, spend up to six months in jail, or be both fined and jailed.' Councilman Rod Tam explains, 'As we become more inundated with people from all over the world, their way of taking care of their health is different. Some people, quite frankly, do not take a bath every day and therefore they may be offensive in terms of their odor.' The ACLU is predictably 'concerned about laws that are inherently vague, where a reasonable person cannot know what conduct is prohibited.' Is this country becoming Singapore?"

iandoh writes "According to a group of Stanford researchers, people who frequently multitask don't pay attention, control their memory or switch from one job to another as well as those who prefer to complete one task at a time. In other words, multitaskers are bad at multitasking. The research team is also studying how to design computer voices for cars that result in safer driving." Reader AliasMarlowe adds "The comparison involved multitasking with a number of attention or context related tests. For the study, multitasking was defined as consuming multiple media sources at once — gaming, TV, IM, email, etc. Interestingly, the habitual multitaskers were much worse at multitasking than the single taskers in these relatively straightforward tests. In self-assessment the multitaskers considered themselves good at it and the single taskers considered themselves bad at it. An extreme case of the Dunning-Kruger effect, perhaps, with consequences for business and society."

iandoh writes "According to a group of Stanford researchers, people who frequently multitask don't pay attention, control their memory or switch from one job to another as well as those who prefer to complete one task at a time. In other words, multitaskers are bad at multitasking. The research team is also studying how to design computer voices for cars that result in safer driving." Reader AliasMarlowe adds "The comparison involved multitasking with a number of attention or context related tests. For the study, multitasking was defined as consuming multiple media sources at once — gaming, TV, IM, email, etc. Interestingly, the habitual multitaskers were much worse at multitasking than the single taskers in these relatively straightforward tests. In self-assessment the multitaskers considered themselves good at it and the single taskers considered themselves bad at it. An extreme case of the Dunning-Kruger effect, perhaps, with consequences for business and society."

iandoh writes "According to a group of Stanford researchers, people who frequently multitask don't pay attention, control their memory or switch from one job to another as well as those who prefer to complete one task at a time. In other words, multitaskers are bad at multitasking. The research team is also studying how to design computer voices for cars that result in safer driving." Reader AliasMarlowe adds "The comparison involved multitasking with a number of attention or context related tests. For the study, multitasking was defined as consuming multiple media sources at once — gaming, TV, IM, email, etc. Interestingly, the habitual multitaskers were much worse at multitasking than the single taskers in these relatively straightforward tests. In self-assessment the multitaskers considered themselves good at it and the single taskers considered themselves bad at it. An extreme case of the Dunning-Kruger effect, perhaps, with consequences for business and society."

David Orenstein writes "Teams at Stanford and MIT have each reported getting strong light signals from germanium-based diodes on silicon at room temperature. Engineers have long sought to do this because, with further refinement into lasers, such diodes would allow for optical interconnects on chips. Optical interconnects could operate much faster and with less power than electrical (metal) ones that are becoming bottlenecks on current chips."

icknay writes "With the upcoming Firefox 3.5 and HTML5 video, there's natural interest in Theora vs. Mpeg-4, but without much evidence either way. Here's clips encoded at various rates to provide concrete comparison between Theora and Mpeg-4. Theora performs decently, but requires more bandwidth than Mpeg-4 (although this is a 1.1alpha release of Theora and Theora has a much better license than Mpeg-4). The quality comparisons are very subjective, but you can try the clips yourself and see how it breaks down. There was an earlier discussion about this, but it lacked much concrete evidence. (Disclosure: it's my page.)"

icknay writes "With the upcoming Firefox 3.5 and HTML5 video, there's natural interest in Theora vs. Mpeg-4, but without much evidence either way. Here's clips encoded at various rates to provide concrete comparison between Theora and Mpeg-4. Theora performs decently, but requires more bandwidth than Mpeg-4 (although this is a 1.1alpha release of Theora and Theora has a much better license than Mpeg-4). The quality comparisons are very subjective, but you can try the clips yourself and see how it breaks down. There was an earlier discussion about this, but it lacked much concrete evidence. (Disclosure: it's my page.)"

DaveKleiman writes "Will bloggers change the world of Supreme Court litigation by inspecting published opinions? Rachel C. Lee has an interesting take on the question in the Stanford Law Review, Ex Parte Blogging: the Legal Ethics of Supreme Court Advocacy In the Internet Era (PDF). She begins the review with: 'Lawyers have been arguing their cases before the Supreme Court for over two centuries, while the phenomenon of legal blogs is perhaps a decade old. Yet legal blogs cannot be dismissed as merely a sideshow novelty — they are already capable of having a substantial impact on Supreme Court litigation.' The review hits on many key points both for and against the use of blogging, but ultimately concludes that members of the Court and their staff will have to refrain from reading any blog post relating to a pending case, no matter who it is written by. It's even possible we'll get carefully drafted rules preventing blogging by attorneys." It's going to be tough to make any such prohibition work. After all, Groklaw's PJ is not an attorney.

Ryan writes "Unmanned, drug-sniffing drones have been introduced in the Netherlands. They fly over houses (video), sniff for weed, and scan for grow lights. Police say they are not breaking the law because the samples can be taken without entering the building."

smolloy writes "The world's first X-ray laser (LCLS) has seen first light. A Free Electron Laser (FEL) is based on the light that is emitted by accelerated electrons when they are forced to move in a curved path. The beam then interacts with this emitted light in order to excite coherent emission (much like in a regular laser); thus producing a very short, extremely bright, bunch of coherent X-ray photons. The engineering expertise that went into this machine is phenomenal — 'This is the most difficult light source that has ever been turned on,' said LCLS Construction Project Director John Galayda. 'It's on the boundary between the impossible and possible, and within two hours of start-up these guys had it right on.' — and the benefits to the applied sciences from research using this light can be expected to be enormous: 'For some disciplines, this tool will be as important to the future as the microscope has been to the past,' said SLAC Director Persis Drell."

Al writes "Two research groups have found a way to unzip carbon nanotubes to create nanoribbons of graphene — a material that has shown great promise for use as nanoscale transistors, but which has proven difficult to manufacture previously. A team led by James Tour, a professor of chemistry and computer science at Rice University, and another led by Hongjie Dai, a professor of chemistry at Stanford University, both figured out ways to slice carbon nanotubes open to create the nanoribbons. The Stanford team was funded by Intel, and the Rice group is in talks with several companies about commercializing their approach."

WSOGMM sends in an arXiv blog post about reflecting gravity waves. The speculation is that reflected gravity could go some ways toward explaining the odd readings being returned by Gravity Probe B. "In the couple of weeks since he introduced the idea that superconducting sheets can reflect gravity waves, Raymond Chiao from the University of California, Merced, has been busy with a couple of buddies working out how big this effect is... Chiao and co. ask how big the effect of a gravitational wave on a thin superconducting sheet is compared to the effect on an ordinary conducting sheet. The answer? 42 orders of magnitude bigger."

Martin Hellman writes "Last month we discussed a major problem with the EPA's Energy Star program. A Sony TV that was advertised to draw less than 0.1 watts in standby mode was actually drawing 15 watts — 150 times the stated value. A lack of information in the user manual and a poor response from Sony led me to suspect the problem was with the Electronic Program Guide feature, but a lack of information in the User Guide and a lack of response from Sony made it impossible to be sure — or to turn off the EPG. At current prices, that power consumption cost me about as much as a subscription to TV Guide magazine! The EPG was not as free as the on screen instructions would have you believe. Now, Device Guru reports on the resolution of that issue. As suspected, the problem was with the EPG, and there is a way to turn it off — now documented in that story. The problem is probably not unique to Sony or TVs that claim Energy Star compliance (devices are self-certified by the manufacturers!), so picking up a power meter is likely to have a good return on investment. As a result of this waste of power, the EPA is planning for future versions of the Energy Star requirements to limit the amount of time a TV can spend in Download Acquisition Mode (DAM) as the time for acquiring the EPG is known."

eldavojohn writes "It's often assumed that representing data reaches a limit when you get to the point that an atom represents one bit in some form or fashion. But Stanford University researchers have used a quantum hologram model to store the characters 'S' and 'U' by encoding the data at a rate of 35 bits per electron."

Martin Hellman writes "DeviceGuru.com ran my piece raising questions about the EPA's Energy Star program. For example, an Energy Star compliant TV that claims to draw 0.1 watts in sleep mode appears to do that — but only seems to sleep about 25% of the time that it is 'off.' The other 75% of the time it draws about 20 watts, for an effective sleep power draw from the user's perspective that is 150 times what the manufacturer claims. Based on the observations described, it is also questionable how many PC's really are sleeping when their screens are blank, even if the user has turned sleep mode on. Given the billions of dollars and tons of CO2 that are at stake, this situation demands more attention."

iandoh passes along the news that researchers at Stanford University have completed the first quantitative, scientific comparison of alternative energy solutions by assessing not only their potential for delivering energy for electricity and vehicles, but also their impacts on global warming, human health, energy security, water supply, space requirements, wildlife, water pollution, reliability, and sustainability. Based on their model, they found that the best sources of alternative energy are wind, concentrated solar, and geothermal energy. The worst are nuclear, clean coal, and ethanol-based fuels. In other words, "the options that are getting the most attention are between 25 to 1,000 times more polluting than the best available options."

joe writes "Aram Harrow and colleagues have just published on the arXiv a quantum algorithm for solving systems of linear equations (paper, PDF). Until now, the only quantum algorithms of practical consequence have been Shor's algorithm for prime factoring, and Feynman-inspired quantum simulation algorithms. All other algorithms either solve problems with no known practical applications, or produce only a polynomial speedup versus classical algorithms. Harrow et. al.'s algorithm provides an exponential speedup over the best-known classical algorithms. Since solving linear equations is such a common task in computational science and engineering, this algorithm makes many more important problems that currently use thousands of hours of CPU time on supercomputers amenable to significant quantum speedup. Now we just need a large-scale quantum computer. Hurry up, guys!"

Ian Lamont writes "Researchers at Stanford say they have developed a blood scanner that can search for cancer-associated proteins in a blood sample and returns results in less than an hour. The device looks in a blood sample for cancerous proteins, and attempts to match them up with complementary proteins using chips based on magnetic nanotechnology. One of the researchers says the device could potentially help doctors identify lung cancer, ovarian cancer and pancreatic cancer at an early stage. The device still has to undergo clinical testing and trials before it can win regulatory approval."

Ashutosh Saxena writes "Stanford artificial intelligence researchers have developed software that makes it easy to reach inside an existing video and place a photo on the wall so realistically that it looks like it was there from the beginning. The photo is not pasted on top of the existing video, but embedded in it. It works for videos as well — you can play a video on a wall inside your video. The technology can cheaply do some of the tricks normally performed by expensive commercial editing systems. The researchers suggest that anyone with a video camera might earn some spending money by agreeing to have unobtrusive corporate logos placed inside their videos before they are posted online."

Ashutosh Saxena writes "Stanford artificial intelligence researchers have developed software that makes it easy to reach inside an existing video and place a photo on the wall so realistically that it looks like it was there from the beginning. The photo is not pasted on top of the existing video, but embedded in it. It works for videos as well — you can play a video on a wall inside your video. The technology can cheaply do some of the tricks normally performed by expensive commercial editing systems. The researchers suggest that anyone with a video camera might earn some spending money by agreeing to have unobtrusive corporate logos placed inside their videos before they are posted online."

Ashutosh Saxena writes "Stanford artificial intelligence researchers have developed software that makes it easy to reach inside an existing video and place a photo on the wall so realistically that it looks like it was there from the beginning. The photo is not pasted on top of the existing video, but embedded in it. It works for videos as well — you can play a video on a wall inside your video. The technology can cheaply do some of the tricks normally performed by expensive commercial editing systems. The researchers suggest that anyone with a video camera might earn some spending money by agreeing to have unobtrusive corporate logos placed inside their videos before they are posted online."

Soren Kierkegaard writes "While reading the two-and-a-half-year-old Slashdot post on Does Philosophy have a role in Computer Science, it occurred to me that over these past few years Philosophy has a more prominent role in Computer Science then ever before. Cognitive Science and Computer Ethics are more established disciplines in universities, and the numbers of philosophy graduates double majoring in computer science and information systems are climbing. Is a merger of Philosophy, a discipline steeped in history and intelligent thought, and Computer Science, a discipline that looks to the future, the best of both worlds?"

Soren Kierkegaard writes "While reading the two-and-a-half-year-old Slashdot post on Does Philosophy have a role in Computer Science, it occurred to me that over these past few years Philosophy has a more prominent role in Computer Science then ever before. Cognitive Science and Computer Ethics are more established disciplines in universities, and the numbers of philosophy graduates double majoring in computer science and information systems are climbing. Is a merger of Philosophy, a discipline steeped in history and intelligent thought, and Computer Science, a discipline that looks to the future, the best of both worlds?"

Barence writes "You may be aware of Donald Knuth, the creator of TeX and author of The Art of Computer Programming, who used to post checks to anyone who spotted an error in one of his books — one hexadecimal dollar, or $2.56. No one cashed them though. This blogger has two of them proudly on his wall, but the sad news is that modern day bank fraud has put a stop to Knuth's much-loved way of keeping his books free of errors." (Here's Knuth's own post about the sad change.)

Wired reports on the Enriched Xenon Observatory 200, a particle detector scientists hope will answer the question of why there is significantly more matter than antimatter in the universe. Quoting: "The new detector will try to fill in the picture, determining basic features of [neutrinos], like their mass and whether or not they, unlike almost all other particles, are their own antiparticles. That quirk is why some scientists believe neutrinos could be the mechanism for the creation of our matter-filled universe. Almost all other particles have an antiparticle twin that, if it comes into contact with the particle, immediately annihilates it. But if neutrinos are their own antiparticles they could conceivably be knocked onto matter's 'team,' thereby causing the cascading win for matter over antimatter that we know occurred. As the Indian theoretical physicist G. Rajasekaran put it in a speech [PDF] earlier this year, neutrinos that are their own antiparticles would explain 'how, after [the] annihilation of most of the particles with antiparticles, a finite but small residue of particles was left to make up the present Universe.'"

iandoh writes "Stanford researchers have found that voters are subconsciously swayed by candidates who share their facial features. In three experiments, researchers at the Virtual Human Interaction Lab worked with cheap, easy-to-use computer software to morph pictures of about 600 test subjects with photos of politicians. And they kept coming up with the same results: For the would-be voters who weren't very familiar with the candidates or in perfect lockstep with their positions or political parties, the facial similarity was enough to clinch their votes."

iandoh writes "Stanford researchers have found that voters are subconsciously swayed by candidates who share their facial features. In three experiments, researchers at the Virtual Human Interaction Lab worked with cheap, easy-to-use computer software to morph pictures of about 600 test subjects with photos of politicians. And they kept coming up with the same results: For the would-be voters who weren't very familiar with the candidates or in perfect lockstep with their positions or political parties, the facial similarity was enough to clinch their votes."

Martin Hellman sends in a pointer to his essay that uses analogies from cryptography and the sport of soaring in an attempt to draw people in to thinking about the risks of nuclear weapons. Quoting: "... I did a preliminary risk analysis which indicates that relying on nuclear weapons for our security is thousands of times more dangerous than having a nuclear power plant built next to your home." Hellman is best known as co-inventor (with Diffie and Merkle) of public key cryptography, and has worked for over twenty-five years to reduce the threat posed by nuclear weapons. He is also a glider pilot with over 2,600 logged hours. Hellman adds, "Readers needing a break can go to some photos of the Sierra Nevada mountains taken from my glider."

Martin Hellman sends in a pointer to his essay that uses analogies from cryptography and the sport of soaring in an attempt to draw people in to thinking about the risks of nuclear weapons. Quoting: "... I did a preliminary risk analysis which indicates that relying on nuclear weapons for our security is thousands of times more dangerous than having a nuclear power plant built next to your home." Hellman is best known as co-inventor (with Diffie and Merkle) of public key cryptography, and has worked for over twenty-five years to reduce the threat posed by nuclear weapons. He is also a glider pilot with over 2,600 logged hours. Hellman adds, "Readers needing a break can go to some photos of the Sierra Nevada mountains taken from my glider."

Ian Lamont writes "Yoko Ono and EMI Records have backed down from their suit against the makers of a documentary film who used a 15-second fragment of a John Lennon song — but only after a Stanford Law School group got involved. Even though the use of the clip was clearly Fair Use, the case exposed a huge problem with the doctrine: It's becoming too expensive for people to actually take advantage of what is supposed to be a guaranteed right. Ironically, the song in question was Imagine."

mjasay writes "As if the proprietary software world needed any help, two business professors from Harvard and Stanford have combined to publish 'Divide and Conquer: Competing with Free Technology Under Network Effects,' a research paper dedicated to helping business executives fight the onslaught of open source software. The professors advise 'the commercial vendor ... to bring its product to market first, to judiciously improve its product features, to keep its product "closed" so the open source product cannot tap into the network already built by the commercial product, and to segment the market so it can take advantage of a divide-and-conquer strategy.' The professors also suggest that 'embrace and extend' is a great model for when the open source product gets to market first. Glad to see that $48,921 that Stanford MBAs pay being put to good use. Having said that, such research is perhaps a great, market-driven indication that open source is having a serious effect on proprietary technology vendors."

DeviceGuru writes "Stanford University will soon begin offering a series of 10 free, online computer science and electrical engineering courses. Initial courses will provide an introduction to computer science and an introduction to field of robotics, among other topics. The courses, offered under the auspices of Stanford Engineering Everywhere (SEE), are nearly identical to standard courses offered to registered Stanford students and will comprise downloadable video lectures, handouts, assignments, exams, and transcripts. And get this: all the courses' materials are being released under the Attribution-Noncommercial-Share Alike 3.0 Unported license."

palegray.net writes "Nature is reporting on new findings that prions jump species barriers. Believed to be responsible for ailments such as Creutzfeld-Jakob disease and 'mad cow' disease, prions are thought to disrupt biological processes by causing normal proteins to fold abnormally. Researchers at the University of Texas Medical Branch in Galveston have observed infectious prions from hamsters causing abnormal protein development in mice, along with a range of other observations on prion actions in test tube environments. From the article: '... they also found that when a prion jumps species, it produces a new kind of prion. "This is very worrisome," says Claudio Soto, who led the research, published in Cell. "The universe of possible prions could be much larger than we thought."' Sounds like another good reason to donate your spare CPU cycles to projects like Folding@home."

An anonymous reader writes "Stanford computer scientists have developed an artificial intelligence system that enables robotic helicopters to teach themselves to fly difficult stunts by 'watching' other helicopters perform the same maneuvers. The result is an autonomous helicopter that can perform a complete airshow of complex tricks on its own. The stunts are 'by far the most difficult aerobatic maneuvers flown by any computer controlled helicopter,' said Andrew Ng, the professor directing the research of graduate students Pieter Abbeel, Adam Coates, Timothy Hunter and Morgan Quigley. The dazzling airshow is an important demonstration of 'apprenticeship learning,' in which robots learn by observing an expert, rather than by having software engineers peck away at their keyboards in an attempt to write instructions from scratch.'" The title of the linked article uses the term "autonomous," but that's somewhat misleading. The copters can't fly on their own, but rather can duplicate complex maneuvers learned from a human pilot.

Ian Lamont writes "The International Olympic Committee has withdrawn a DCMA takedown notice that targeted a two-minute long YouTube video of a Students for a Free Tibet protest at the Chinese consulate in New York. The video shows protesters gathering outside the building at night and projecting images of the Olympic symbol, 'tank man,' Tibetan riot footage and clips of victims of the Chinese police crackdown in Tibet. After receiving the request, YouTube contacted the IOC and asked if it really planned to pursue a claim. The IOC retracted the notice and the video was reposted within hours. Stanford Law School's Center for Internet and Society praised YouTube for 'going out of its way to do more than it's required to do under the law to protect free expression.'"

Doug Treadwell writes "Many people have wondered what the difference is between the Computer Science education given in the average public university versus one given in an Ivy League university (or a top level public university). There have also been discussions here on Slashdot about whether any Computer Science curriculum gives students the knowledge they need for the working world. As a computer science student both questions are very important to me, so I decided to answer them for myself and build a website to share what I found. I was able to find the required reading for hundreds of courses at Stanford, Princeton, Carnegie Mellon, and Berkeley; along with some other institutions. This should also help answer some of those 'What should I read?' questions."

pacopico writes "Stanford professor Kunle Olukotun designed the first mainstream multi-core chip, crafting what would become Sun Microsystems's Niagra product. Now, he's heading up Stanford's Pervasive Parallelism Lab where researchers are looking at 100s of core systems that might power robots, 3-D virtual worlds and insanely big server applications. The Register just interviewed Olukotun about this work and the future of multi-core chips. Weird and interesting stuff."

David Gobaud writes "Jason Sobel, the manager of infrastructure engineering at Facebook, gave an interesting presentation titled Needle in a Haystack: Efficient Storage of Billions of Photos at Stanford for the Stanford ACM. Jason explains how Facebook efficiently stores ~6.5 billion images, in 4 or 5 sizes each, totaling ~30 billion files, and a total of 540 TB and serving 475,000 images per second at peak. The presentation is now online here in the form of a Flowgram."

David Gobaud writes "Jason Sobel, the manager of infrastructure engineering at Facebook, gave an interesting presentation titled Needle in a Haystack: Efficient Storage of Billions of Photos at Stanford for the Stanford ACM. Jason explains how Facebook efficiently stores ~6.5 billion images, in 4 or 5 sizes each, totaling ~30 billion files, and a total of 540 TB and serving 475,000 images per second at peak. The presentation is now online here in the form of a Flowgram."

David Gobaud writes "Jason Sobel, the manager of infrastructure engineering at Facebook, gave an interesting presentation titled Needle in a Haystack: Efficient Storage of Billions of Photos at Stanford for the Stanford ACM. Jason explains how Facebook efficiently stores ~6.5 billion images, in 4 or 5 sizes each, totaling ~30 billion files, and a total of 540 TB and serving 475,000 images per second at peak. The presentation is now online here in the form of a Flowgram."

Btarlinian writes "GLAST (the Gamma-ray Large Area Space Telescope) was launched Wednesday at 1605 GMT. GLAST was built in a rather interesting manner, in that much of the work was funded by the Department of Energy. In fact, the main instrument on GLAST, the Large Area Telescope was assembled at the Stanford Linear Accelerator Center. It can detect gamma rays at energies between 20 MeV and 300 GeV. Researchers will use GLAST to study some of the most massive and energetic objects known to science."

eldavojohn writes "The FCC & Stanford hoped to host an on-campus debate over Net Neutrality and invited AT&T, Comcast, Verizon, and Time Warner to take part. None of them showed up. Unfortunately, only one side of the issue was voiced despite Stanford being home to people opposing Net Neutrality. At the hearing, the FCC Commissioner stated: 'Consumers have come to expect and will continue to demand the open and neutral character that has always been the hallmark of the Internet. The Commission is currently examining several petitions and complaints according to which broadband providers have intentionally and secretly degraded applications in a way that undermines the open and interconnected character of the Internet.'"

I Don't Believe in Imaginary Property writes "A US District Court in the Southern District of California has found the Copyright Remedy Clarification Act to be unconstitutional. That act is what removes the sovereign immunity for infringement that state workers have in their official capacity, something many argued would jeopardize universities with liability for faculty infringement, not to mention other state agencies. In a rather dense legal ruling (PDF), the Court found that the Clarification Act was not a valid exercise of congressional power under the 14th Amendment. For those of you who have absolutely no idea what I just said, I recommend either being glad that a small piece of copyright law may soon bite the dust, or hoping that NYCL will explain this better."

I Don't Believe in Imaginary Property writes "A US District Court in the Southern District of California has found the Copyright Remedy Clarification Act to be unconstitutional. That act is what removes the sovereign immunity for infringement that state workers have in their official capacity, something many argued would jeopardize universities with liability for faculty infringement, not to mention other state agencies. In a rather dense legal ruling (PDF), the Court found that the Clarification Act was not a valid exercise of congressional power under the 14th Amendment. For those of you who have absolutely no idea what I just said, I recommend either being glad that a small piece of copyright law may soon bite the dust, or hoping that NYCL will explain this better."