MojoKid writes "The PC demo for Codemasters' upcoming DirectX 11 racing title, Dirt 2, has just hit the web and is available for download. Dirt 2 is a highly-anticipated racing sim that also happens to feature leading-edge graphic effects. In addition to a DirectX 9 code path, Dirt 2 also utilizes a number of DirectX 11 features, like hardware-tessellated dynamic water, an animated crowd and dynamic cloth effects, in addition to DirectCompute 11-accelerated high-definition ambient occlusion (HADO), full floating-point high dynamic range (HDR) lighting, and full-screen resolution post processing. Performance-wise, DX11 didn't take its toll as much as you'd expect this early on in its adoption cycle." Bit-tech also took a look at the graphical differences, arriving at this conclusion: "You'd need a seriously keen eye and brown paper envelope full of cash from one of the creators of Dirt 2 to notice any real difference between textures in the two versions of DirectX."

Last year we ran the story of Yves Rossy and his DIY jetwings. Yves spent $190,000 and countless hours building a set of jet-powered wings which he used to cross the English Channel. Rossy's next goal is to cross the Strait of Gibraltar, from Tangier in Morocco and Tarifa on the southwestern tip of Spain. From the article: "Using a four-cylinder jet pack and carbon fibre wings spanning over 8ft, he will jump out of a plane at 6,500 ft and cruise at 130 mph until he reaches the Spanish coast, when he will parachute to earth." Update 18:57 GMT: mytrip writes: "Yves Rossy took off from Tangiers but five minutes into an expected 15-minute flight he was obliged to ditch into the wind-swept waters."

sciencehabit writes "For what may be the first time, fMRI scans of brain activity have been used as evidence in the sentencing phase of a murder trial. Defense lawyers for an Illinois man convicted of raping and killing a 10-year-old girl used the scans to argue that their client should be spared the death penalty because he has a brain disorder. Some experts say the scans are irrelevant because they were taken 20+ years after the crimes were committed. Others point out that the scans are only being considered because the sentencing phase of a trial has less stringent standards about evidence than those used to establish a defendant's innocence or guilt." In the Illinois case, the fMRI defense didn't help the defendant, whom a jury sentenced to death.

Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."

paltemalte writes "Simon Marlow has posted an announcement of Haskell 2010, a new revision of the Haskell purely functional programming language. Good news for everyone interested in SMP and concurrency programming."

eldavojohn writes "Petr Horava, a physicist at the University of California in Berkeley, has a new theory about gravity and spacetime. At high energies, it actually snips any ties between space and time, yet at low energies devolves to equivalence with the theory of General Relativity, which binds them together. The theory is gaining popularity with physicists because it fits some observations better than Einstein's or Newton's solutions. It better predicts the movement of the planets (in an idealized case) and has a potential to create the illusion of dark matter. Another physicist calculated that under Horava Gravity, our universe would experience not a Big Bang but a Big Bounce — and the new theory reproduces the ripples from such an event in a way that matches measurements of the cosmic microwave background."

J. Dzhugashvili writes "While it's played up the general-purpose computing prowess of its next-gen GPU architecture, Nvidia has talked little about Fermi's graphics capabilities — to the extent that some accuse Nvidia of turning its back on PC gaming. Not so, says The Tech Report in a detailed architectural overview of the GF100, the first Fermi-based consumer graphics processor. Alongside a wealth of technical information, the article includes enlightening estimates and direct comparisons with AMD's Radeon HD 5870. The GF100 will be up to twice as fast as the GeForce GTX 285, the author reckons, but the gap with the Radeon HD 5870 should be 'a bit more slender.' Still, Nvidia may have the fastest consumer GPU ever on its hands — and far from forsaking games, Fermi has been built as a graphics processor first and foremost."

RichZellich writes "Police arrested a senior vice president from Island Def Jam Records, saying he hindered their crowd-control efforts by not cooperating. The crowd at a mall where Justin Bieber was appearing got out of control, and police wanted the man to send a tweet asking for calm; he refused and they arrested him on a felony assault charge 'for putting people in danger.'"

Mike writes "Austrian designers mischer'traxler have created a solar powered machine that makes an incredible array of furnishings that vary based on how much sunlight it receives over the course of a day. Titled 'The Idea of a Tree,' the machine spins spools of thread into stools, benches, containers, and lamp shades that wax and wane as the available sunlight shifts. Furniture created during cloudy winter days will be wrapped more slowly, causing it to be darker in color, thicker, and smaller than pieces created during the sun-soaked summer months."