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Melting silicon 'in reverse' can help purify it, result in cheaper electronics
Just our favorite combination of news: a mind-bending innovation that can have a very practical impact on our daily tech consumption. MIT scientists have found that silicon -- when combined in the right dosage with other metals -- can actually be made to melt by reducing its temperature. Typically, you'd require 1,414 degrees of Celsius heat to liquidize solid silicon, but the intermixed variant discussed here need only reach 900 degrees before its slow cooling process starts turning it gooey. The great advantage to this discovery is that because the impurities tend to separate off into the liquid part, there's now a practicable way to filter them out, meaning that things like solar cells won't require the same high grade of silicon purity for their construction -- which in turn might lead to us being able to afford them one day. Of course, that's getting way too far ahead of ourselves, as the research is still ongoing, but good news is good news no matter the timescale.
NIU professor teaches engineering through video games
At Northern Illinois University, engineering professor Brianno Coller teaches both "Dynamic Systems and Control" and "Computational Methods." Rather than simply employ traditional methods of teaching, though, Coller instead creates video games to actively engage his students in engineering principles. According to an AP piece on Mr. Coller, he began showing his students Mars Rover landing footage from NASA (computer generated) and "Students would always be sort of on the edge of their seat watching this thing because it's just so cool to see how it works, but that sentiment ended as soon as you turned off the video, and then they're back to their boring old homework again," he says. Coller came to the conclusion that he needed a "simulation that allowed students to design a desired movement or action using the required formulas and algorithms that apply to all types of engineering." In so many words, Coller was thinking about a video game to explain engineering principles to his students. And now, five years later, he's found success with his games -- one of which has students applying rate of speed and geometrical calculations to a car being driving around a track -- and The National Science Foundation is offering financial support for future development. "You're applying what you learn throughout the semester, so you apply stuff without even knowing it," one satisfied student told the AP. For those of you future engineers thinking Northern Illinois University might be the place for you (after reading this piece, naturally), the school will be expanding Coller's "gaming as teaching" approach to new engineering classes in the future.
Real world CSIs look at videogame tech to help solve cases
While TV-based crime scene investigators use futuristic moon technology to solve mysteries, real world forensic scientists say the biggest advancements need to come from how investigators collaborate on cases. North Carolina State University recently received a $1.4 million grant from the National Science Foundation to help develop crime scene mapping tech (right) derived from the Unity game engine, allowing teams to create a virtual reproduction of crime scenes.Using environments made up of 3-D laser scans and 2D models, investigators would be able to share detailed information with other scientists through the platform's website, reducing wait times and travel budgets.The IC-CRIME platform (Interdisciplinary, cyber-enabled crime reconstruction through innovative methodology and engagement) won't be ready for at least three years, but scientists seem confident in the platform's future potential growth in catching scumbags. Also, turning the lights on in the lab might help the process. Those rooms always look so dark on TV.
Self-healing chips could function forever
Although you may have never given a thought to what transistors do to repair themselves when certain sectors fail, there are a few organizations who make it their life's work. Researchers from the National Science Foundation, the Semiconductor Research Corporation, and the University of Michigan have a mission to complete before their grant money runs dry: to create semiconductors that can heal themselves without the burdensome redundancy currently used. The goal here, which could seem a tad superfluous until you consider these chips operate in things like airplanes and medical devices -- you know, fairly critical applications -- is to design a semiconductor that runs more efficiently and can be counted on to function no matter how crucial the situation. By designing a chip that can auto-detect a problem, then shift the resources to a functioning area while the chip diagnoses and repairs the issue with help from "online collaboration software," you'll get a slimmer semiconductor that suffers no noticeable loss in performance while self-repairing. If this circuitry talk has your wires all crossed up, here's the skinny: more dependable chips will make everyone's life a bit easier, and if the team's plan is free of defects, we can expect to see prototypes within the next three years. [Via Mobilemag]
