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Space

Telepresence — Our Best Bet For Exploring Space 309

Seth Shostak of the SETI Institute recently wrote an opinion piece for the NY Times discussing the limitations of our space technology. He makes the harsh point that transporting human beings to other star systems isn't a reasonable goal even on a multi-generational time frame. However, advances in robotics and data gathering could instead bring the planets and stars to us, and do it far sooner. Quoting: "Sending humans to the stars is simply not in the offing. But this is how we could survey other worlds, around other suns. We fling data-collecting, robotic craft to the stars. These proxy explorers can be very small, and consequently can be shot spaceward at tremendous speed even with the types of rockets now available. Robot probes don't require life support systems, don't get sick or claustrophobic and don't insist on round-trip tickets. ... These microbots would supply the information that, fed to computers, would allow us to explore alien planets in the same way that we navigate the virtual spaces of video games or wander through online environments like Second Life. High-tech masks and data gloves, sartorial accessories considerably more comfortable than a spacesuit, would permit you to see the landscape, touch objects and even smell the air."
Medicine

Stem Cell Treatment To Cure the Most Common Cause of Blindness 126

The Times Online reports that researchers from the Institute of Ophthalmology at University College London and Moorfields eye hospital have developed stem cell therapy that can treat age-related macular degeneration (AMD), the most common cause of blindness. They are currently moving the treatment through the regulatory approval process, and clinical trials are expected to start within two years. Quoting: "Under the new treatment, embryonic stem cells are transformed into replicas of the missing cells. They are then placed on an artificial membrane which is inserted in the back of the retina. ... [Professor Pete Coffey, director of the London Project to Cure Blindness] said the treatment would take 'less than an hour, so it really could be considered as an outpatient procedure. We are trying to get it out as a common therapy.'
Security

Looking To Spammers To Solve Hard AI Problems 271

An anonymous reader writes "With bots getting closer to beating text-based CAPTCHAs for good, New Scientist points out that when they do, OCR technology will at least have advanced. The article goes on to suggest that whatever kind of reverse Turing Test that comes next should be chosen to motivate spammers to solve other pressing AI problems, such as image recognition. Are there any other problems that criminal crowdsourcing could help with?"
Operating Systems

Microsoft Leaks Windows 7 RC Date — Before May 5 321

CWmike writes "Microsoft will deliver a release candidate of Windows 7 in about two weeks, the company's Web site revealed Saturday. According to a page posted on Microsoft's partner program site, Windows 7 Release Candidate (RC) may be available to paying subscribers to Microsoft's developer and IT services before May 5. Partners will be allowed to download the release candidate on that date, the first Tuesday of the month. 'Partners: If you have a subscription to MSDN or TechNet, you can download Windows 7 RC now,' the page read Saturday afternoon. 'Otherwise, you can download Windows 7 RC starting May 5, 2009.' The link to the download, however, shunted users to the TechNet download page, which did not list Windows 7 RC as one of the available files. This is the second time in just over three weeks that Microsoft's Web site has leaked information about Windows 7 RC. Accidental, or buzz-builder?"
Earth

Antarctic Ice Is Growing, Not Melting Away, At Davis Station 633

schwit1 writes "A report from The Scientific Committee on Antarctic Research says that Antarctic ice is growing, not melting away. Ice core drilling in the fast ice off Australia's Davis Station in East Antarctica by the Antarctic Climate and Ecosystems Co-Operative Research Centre shows that last year, the ice had a maximum thickness of 1.89m, its densest in 10 years. The average thickness of the ice at Davis since the 1950s is 1.67m. A paper to be published soon by the British Antarctic Survey in the journal Geophysical Research Letters is expected to confirm that over the past 30 years, the area of sea ice around the continent has expanded."
Government

Robo-Arm Signatures Are Legal, Gov't Buys One 154

AndreV writes "It's endlessly comforting to know a recently designed and implemented long-distance robotic signing arm can produce signatures legal in both the US and Canada. The aptly named LongPen replicates the handwriting from a person writing in a remote location — with the unique speed, cadence and pressure of a human pen-stroke. It started as an idea from author Margaret Atwood to help free her from grueling, multi-city, multi-country book tours, but the hard stuff was done by a bunch of Canadian haptic gurus, whose design took into consideration many factors of the human arm and how we write. How it works: from the author-end, data protocols are set up, and the pen pressure is measured on a special tablet. The data streams to the robot, while algorithms smooth out all the missed points. Complex math operations were used to help the mechatronic limb repeat the hand's motions without unnecessary jerking, and programmers had to 'scale time' or 'stretch time' by breaking down the movements, essentially tricking the eyes into thinking the robot is writing fast. It was recently adopted by the Ontario Government to sign official documents. It helps criminals sign books, too."
Security

A Closer Look At Chromium and Browser Security 109

GhostX9 writes "Tom's Hardware's continuing series on computing security has an interview with Adam Barth and Collin Jackson, members of Stanford University's Web Security Group and members of the team that developed Chromium, the open-source core behind Google Chrome. The interview goes into detail regarding the sandboxing approach unique to Chromium, comparisons between the browser and its competition, and web security in general."
Space

Submission + - The Solar oxygen crisis

Astrophysicist writes: The Astrophysical Journal publishes this week an article about the abundance of oxygen in the Sun. Oxygen (O) is the third most abundant atom in the universe, behind Hydrogen (H) and Helium (He). Most of the H and He was formed in the Big Bang, which means that O is the element most frequently produced by nuclear fusion reactions in the interior of the stars. The solar abundance of O, which is key in Astrophysics because of its use as a calibration reference for other objects, was thought to be well established since the 80s. However, recent evidence indicates that it has been overestimated by almost a factor of two. A revision of the Solar oxygen abundance would have a cascading effect on other important elements, such as Carbon, Nitrogen and Neon, whose abundance is only known relative to that of O. In addition to the impact on the chemical composition of many stars, models of solar interior may require some reworking in order to be consistent with the new data.

Feed Bird Flu Genome Study Shows New Strains, Western Spread (sciencedaily.com)

A recent study shows three distinct, independently evolving lineages of Avian Flu. The broad dispersal of the different forms of the virus throughout several different countries over a relatively short period of time points to the possibility of human movement, rather than wild birds as the reason for the quick spread of the H5N1.
United States

The World's Longest Tunnel 563

fusconed writes "Bloomberg reports that the Russian government is proposing to build an underground tunnel between Russia and Alaska for transporting goods, electricity and natural resources. The tunnel would be twice as long as that between the UK and France. The $10 — $12b cost is not something to be overlooked, but Russia claims the benefits would pay it off in 20 years. It would take 10 to 15 years to build, but being an Alaskan, it sounds good to me!"

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