DeviceGuru writes "Although it won't help Linux run Windows-specific software applications, this easy hack produces an Ubuntu desktop that looks and feels a lot like Windows 7. It's particularly suitable for reviving older PCs or laptops on which the main activities will be web-browsing, email, document writing, and streaming music and videos from from the web. The process installs a Windows 7-like GNOME theme on an otherwise standard Ubuntu 10.04 installation, although it might work on other Linux distros with GNOME and appropriate other packages installed. Naturally all this begs the question: why would anybody want to do this? Why indeed!" People have been doing this sort of look-and-feel swap-out for years; it seems best to me as a practical joke.

An anonymous reader tips a piece in Australian Geographic indicating that Pluto may be in for another demotion, as researchers work to define dwarf planets more exactly. "[Australian researchers] now argue that the radius which defines a dwarf planet should instead be from 200–300 km, depending on whether the object is made of ice or rock. They base their smaller radius on the limit at which objects naturally form a spherical rather than potato-like shape because of 'self-gravity.' Icy objects less than 200 km (or rocky objects less than 300 km) across are likely to be potato shapes, while objects larger than this are spherical. ... They call this limit the 'potato radius' ... [One researcher is quoted] 'I have no problem with there being hundreds of dwarf planets eventually.'"

stronghawk writes "The creator of the Nickel-O-Matic is back at it and has now built a Turing Machine from a Parallax Propeller chip-based controller, motors, a dry-erase marker and a non-infinite supply of shiny 35mm leader film. From his FAQ: 'While thinking about Turing machines I found that no one had ever actually built one, at least not one that looked like Turing's original concept (if someone does know of one, please let me know). There have been a few other physical Turing machines like the Logo of Doom, but none were immediately recognizable as Turing machines. As I am always looking for a new challenge, I set out to build what you see here.'"

andylim writes "According to Cellular News, researchers at Germany's Karlsruhe Institute of Technology have developed a method for mobile phones to convert silent mouth movements into speech. As recombu.com points out, the 'potential for secret conversations just got huge.' You could pass the time by making phone calls from the cinema without disturbing anyone. In noisy places like bars and clubs you could make yourself heard without having to shout."

beadwindow writes "NASA's IBEX (Interstellar Boundary Explorer) spacecraft has made the first all-sky maps of the heliosphere and the results have taken researchers by surprise. The maps are bisected by a bright, winding ribbon of unknown origin: 'This is a shocking new result,' says IBEX principal investigator Dave McComas of the Southwest Research Institute. 'We had no idea this ribbon existed — or what has created it. Our previous ideas about the outer heliosphere are going to have to be revised.' Another NASA scientist notes, '"This ribbon winds between the two Voyager spacecraft and was not observed by either of them.'"

TheClockworkSoul writes "Researchers at the University of Oxford have devised a way to write memories onto the brains of flies, revealing which brain cells are involved in making bad memories. The researchers said that in flies, just 12 brain cells were responsible for what is known as 'associative learning.' They modified these neurons by adding receptors for ATP, so that the cells activate in the presence of the chemical, but since ATP isn't usually found floating around a fly's brain, the flies generally behave just like any other fly. Most interestingly, however, is that the scientists then injected ATP into the flies' brains, in a form that was locked inside a light-sensitive chemical cage. When they shined a laser on the fly brains, the ATP was released, and the 'associative learning' cells were activated. The laser flash was paired with an odor, effectively giving the fly a memory of a bad experience with the odor that it never actually had, such that it then avoided the odor in later experiments. The researchers describe their findings in the journal Cell."

destinyland writes "A fertility service in L.A. and New York screens embryos for breast cancer, cystic fibrosis, and 70 other diseases — and lets couples pick the sex of their babies. But when their pre-implantation diagnostic services began including the baby's eye and hair color, even the Pope objected — and the Great Designer Baby Controversy began. '[W]e cannot escape the fact that science is moving forward,' the fertility service explained — before capitulating to pressure to eliminate the eye and hair color screenings."

The LA Times is running a story about Earth Speaks, a companion project to SETI, which focuses on how we would communicate with intelligent extraterrestrial life, should we happen to discover it. Far more effort has been devoted to searching for signals or a means to communicate than the question of what we might say once contact is established, and the folks at SETI have set up a website to gather opinions on what the best questions and statements are. "So far, the messages break down into a few distinct categories. Some people want to throw a block party to welcome the aliens to the neighborhood. Others, less trusting, would warn the aliens that we've got guns and know how to use them. Another group, possibly influenced by having seen too many movies, would have us hide under the bed until they go away. 'If we discover intelligent life beyond Earth, we should not reply — we should freeze and play dead,' wrote one contributor." What would you say first to an alien?

eggegick writes "My wife has taken a number of college courses over the last three years and many of the classes used on-line materials rather than books. The problem was these required IE along with Java, Active X and/or various plug-ins (the names of which escapes me), and occasionally I'd have to tweak our firewall to allow these apps to run. I don't think any of these training apps would work with Firefox. All of this made me cringe from a security point of view. Myself, I use Firefox, No-Script, our external firewall and common sense when using the web. I have a very old Windows 2000 machine that I keep up to date. To my knowledge, I've never had a virus or malware problem. Her computer is a relatively new XP machine, and at this point she feels her computer has something wrong. But now she prefers to use my old machine instead of hers since it seems to be more responsive. We plan to run the recovery disk on hers. Assuming the college course work applications were part of the cause, what recommendations do any of you have for running this kind of software? Is there a VMware solution that would work — that is, have a Windows image that is used temporarily for the course work and then discarded at the end of the semester (and how do you create such an image, and what does it cost?)."