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Domain: anzwers.org
Stories and comments across the archive that link to anzwers.org.
Stories · 9
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Largest Lens Ever Discovered
K Tanmay writes "A team of Astronomers have found a natural lens capable of resolving details as fine as 10 microarcseconds across - equivalent to seeing a sugar cube on the Moon, from Earth. The lens comprises of a cloud of interstellar gas, and works on the principle of scintillation; where the clumpiness inside a cloud of gas creates a density change thus bending and focusing the light. This technique, dubbed 'Earth-Orbit Synthesis', will be first used to study black holes in distant quasars, so don't expect spectacular wallpaper replacing images. There's also an interview with Dr. Hayley Bignall, an astronomer from the Joint Institute for Very Long Baseline Interferometry in Europe (JIVE), where she discusses the concept of using interstellar scintillation to get observations that we could never measure from here on earth." Update: 02/22 18:23 GMT by T : That wikipedia link had led to the wrong place; here's the definition for arcsecond if you still want to read it. -
New Model Helps Predict Earth-Sized Planets
look over yonder writes "A new computer model created by astronomers from the Smithsonian Center and Astrophysics and the University of Utah predicts that systems which harbour Earth-sized planets will have a fingerprint of a ring of dust orbiting the star. This model will make it much easier for astronomers to locate stars and predict the size of planets orbiting it by simply measuring how bright the star system is at infrared (IR) wavelengths of light. Stars with dusty disks are brighter in the IR than stars without disks. The more dust a star system holds, the brighter it is in the IR." -
Extinction Of Human Languages Affects Programming?
Tanmay Kudyadi writes "An article from NewScientist.com reports that half of all human languages will have disappeared by the end of the century, as smaller societies are assimilated into national and global cultures. This may be great news if one is looking at a common standard for communication, but it dosen't help those designing the next generation of programming languages. For example, there's an extremely strong link between Panini's Grammar and computer science (PDF link), and with every language lost, there is a possibility that we may have missed an opportunity at improving the underlying heuristics." -
A New Face For Robotics
tanmay writes "Android technology has moved a step forward with the creation of a high-tech polymer called 'f'rubber,' which resembles human skin. Its creator, David Hanson has implemented it in a robot called Hertz, as this report from CNN gives us the details. Another question that the report brings up is the need to make robots resemble humans. Ray Kurzweil thinks Hanson's work is significant because realistic facial movement will play an important role in the way future androids respond to humans, and has the following to say, 'Intelligence significantly below that of normal humans stands out more with a robot that looks strikingly human. This creates the impression of a human with impaired intelligence, which may strike some as disturbing.'" -
Why Open Source Makes Sense For Handhelds
Guylhem writes "Are you still wondering why you should prefer an handheld running free software over one running Palm OS or Windows CE? Here's a short article to explain the main reasons you should consider. The most important are sustainability and freedom: you don't want your applications to break when you update your handheld OS or hardware, and you certainly want to decide what *you* may do with your data. Palm and Pocket PC's DRM protected and obscure formats stand in your way. That's another good reason to prefer free software: you have the source code so you can develop plug ins to read such obscure formats. Even better - you can stick to standards formats such as divx which are poorly supported on handhelds running proprietary software." On the topic of handhelds, tanmay submits brighthand.com's small chart of some upcoming handhelds and smart phones that may be launched in the coming months. -
Dell's New Linux Blog
comforteagle writes "I've just written up an interesting find: Linux engineers at Dell have started their own Linux site and weblog about Linux at Dell. From the announcement: "Welcome to the Dell Linux Community Web. This site is dedicated to providing any information that may be useful regarding your usage of Linux on your Dell equipment. While Dell primarily works with and officially supports Red Hat Linux, many of our customers choose to run other distributions." And perhaps more importantly it appears that the new site and weblog is run and maintained by the engineers themselves. It certainly has that 'made with vi' look." And kudyadi points to this PC Magazine interview with Michael Dell, in which Dell talks "about Dell's expanding product line, the company's late entrance into the Media Center space, and where the PC giant and the industry go from here." He touches on Linux just a bit, too. -
Ten Technologies That Refuse to Die
kudyadi writes "Technology Review has an interesting article on, as the title suggests, ten technologies that we continue using despite advances made in the same. The best example is that of analog watches, "Compared to today's digital timepieces, old-fashioned, sweep-hand watches are pathetic one-trick ponies. Digital-watch wearers can check temperature, altitude, and the time in Tokyo, play tunes and games, and send messages. Can wristwatch videoconferencing, Web surfing, and tarot readings be far off? But what digital watches can't do, according to sweep-hand proponents, is display the time and context as elegantly and intuitively as an analog model."" Interesting counterpoint to this post from a few years back about technologies that didn't manage to hang on. And Bruce Sterling has a short list of ones he'd like to see go away, too ;) -
Beyond the Standard Model of Particle Physics
tanmay writes "As time moves on, the case for supersymmetry keeps getting stronger. Physicsweb is reporting about an experiment that measures the relation between the spin of the muon and its magnetic moment, called the g-factor. The latest experiment is described as the most significant deviation to date between experiment and theory in particle physics, thus offering the clearest hint so far of new physics beyond the Standard Model of particle physics. We will know for sure if supersymmetry holds it's ground by 2007, when the Large Hadron Collider will commence operation." -
Learning (And Harvesting) from Extremophiles
kudyadi writes "BBC News has an article on the threat posed to extremophiles by anxious prospectors ready to exploit their unique nature. Potential discoveries include glycoprotein, which prevents Antarctic fish from freezing, and an extract from green algae for use in cosmetic skin treatment, and anti-tumour properties in a strain of yeast. This article explains the issue more lucidly, but in the end, one must consider the environmental ramifications of this biological exploitation before moving ahead full scale. So how is Tux in danger? Let me remind you of a thing called the food chain and then read this."