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Toys

Demo of Spatially Aware Blocks 109

Posted by ScuttleMonkey from the but-will-they-survive-my-2-year-old dept.
Chris Anderson writes "This 5-min demo just posted from last week's TED — got a big crowd reaction. It's a new technology coming out of MIT, about to be commercialized. Siftables have been seen before, but not like this. They're toy blocks/tiles that are spatially aware and interact with each other in very cool ways. Initial use may be as toys, but there's big potential for new paradigm of spatially-aware physical mini computers."
Mars

Mars Polar Cap Mystery Solved 77

Posted by Soulskill from the feather-in-their-cap dept.
Matt_dk writes "Scientists are now able to explain why Mars' residual southern ice cap is misplaced, thanks to data from ESA's Mars Express spacecraft (the same probe running the 'Mars Webcam'). It turns out the martian weather system is to blame. And so is the largest impact crater on Mars — even though it is nowhere near the south pole. Like Earth, Mars has frozen polar caps, but unlike Earth, these caps are made of carbon dioxide ice as well as water ice. During the southern hemisphere's summer, much of the ice cap sublimates, a process in which the ice turns straight back into gas, leaving behind what is known as the residual polar cap. The mystery was that while the winter cap is symmetrical about the south pole, the residual cap was offset, and scientists couldn't figure out why."

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