An anonymous reader writes "A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth's core, 1,800 miles underground. The magnetic field strength is 25 Gauss, or 50 times stronger than the magnetic field at the surface that makes compass needles align north-south. Though this number is in the middle of the range geophysicists predict, it puts constraints on the identity of the heat sources in the core that keep the internal dynamo running to maintain this magnetic field."

An anonymous reader writes "During an in-depth and informative interview, Doom creator and id Software co-founder John Carmack opines on iOS game development, the economics of mobile development vs. console development, why mobile games lend themselves to more risk-taking and greater creativity, and finally, why he's not too keen on the Android Marketplace as a money-making machine. '...I'm honestly still a little scared of the support burden and the effort that it's going to take for our products, which are very graphics-intensive.'"

A Japanese aquarium is using the greenest energy possible to power the lights on its Christmas tree, an electric eel. From the article: "Each time the eel moves, two aluminum panels gather enough electricity to light up the 2-meter (6 ft 6 in) tall tree, decked out in white, in glowing intermittent flashes."

eldavojohn writes "A Japanese/Algerian effort called The Sahara Solar Breeder Project employs a simple concept revolving around the pure silica in the sand of the Sahara Desert. The silica can be used to build vast solar arrays which will then provide the power and means to build more solar arrays in a classic breeder model. They would then use DC powerlines utilizing high temperature superconductors. The lead of the project points out that silica is the second most abundant resource in the Earth's crust. The project's lofty goals to harness the Sahara's energy has a few requirements — including 100 million yen annually — but also the worldwide cooperation of many nations and the training of the scientists and engineers to create and man these desert plants. The once deadly wasteland of the Sahara now looks like a land rich in an important resource: sunlight."

Dotnaught writes "Photoshop co-creator Russell Brown asked Ansca Mobile to re-create Photoshop 1.0, originally introduced in 1990, for the iPhone. The resulting app, created in three days using the Corona SDK, was distributed to 50 attendees of an event celebrating Photoshop's 20th anniversary. Programmer Evan Kirchhoff in a blog post explains that Ansca took the project on to prove its claims about how Corona makes iPhone development faster."

Lucas123 writes "The Blu-ray Disc Association announced today that it has finalized the specification for Blu-ray 3-D discs. The market for 3-D, which includes 3-D enabled televisions, is expected to be $15.8 billion by 2015. Blu-ray 3-D will create a full 1080p resolution image for both eyes using MPEG4-MVC format. Even though two hi-def images are produced, the overhead is typically only 50% compared to equivalent 2D content. The spec also allows PS3 game consoles to play Blu-ray 3-D content. 'The specification also incorporates enhanced graphic features for 3D. These features provide a new experience for users, enabling navigation using 3D graphic menus and displaying 3D subtitles positioned in 3D video.'"

KingofGnG writes "An impressive confirmation of the Dolphin Wii emulator's capabilities comes from a YouTube video, which shows off recently-added video clips of New Super Mario Bros. Wii in full HD. It demonstrates the growing compatibility of Dolphin with the latest games published for the Nintendo console."

igrigorik writes "In the short span of just a couple of years, the Ruby VM space has evolved to more than just a handful of choices: MRI, JRuby, IronRuby, MacRuby, Rubinius, MagLev, REE and BlueRuby. Four of these VMs will hit 1.0 status in the upcoming year and will open up entirely new possibilities for the language — Mac apps via MacRuby, Ruby in the browser via Silverlight, object persistence via Smalltalk VM, and so forth. This article takes a detailed look at the past year, the progress of each project, and where the community is heading. It's an exciting time to be a Rubyist."

symbolset writes "Many know the beauty and complexity of the Mandelbrot set. For some years now a few enterprising mathematicians / rendering fiends have been seeking a true 3D Mandelbrot set. A month ago a solution was found, and it is awesome to behold."

Milan Karki, 18, who comes from a village in rural Nepal, believes he has found the solution to the developing world's energy needs. A solar panel made from human hair. The hair replaces silicon, a pricey component typically used in solar panels, and means the panels can be produced at a low cost for those with no access to power. The solar panel, which produces 9 volts (18 watts) of energy, costs around $38 US (£23) to make from raw materials. Gentlemen, start your beards. The future of hair farming is here!