polyethylene
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Lego's treehouse set uses plant-based bricks for the greenery
Last year, Lego revealed a new type of brick made using a type of polyethylene created with ethanol from sustainably sourced sugarcane. Though it said only a small percentage of total bricks would be made in such a way, it was a major step towards Lego's broader sustainability ambitions. Several sets have included such pieces, though Lego has unveiled perhaps its most ambitious one yet: a Treehouse kit that includes 185 of those pieces.
Inspiration Mars ship using human waste as a radiation shield: no really, it's fine
Dennis Tito is planning an ambitious private flyby of Mars for 2018 that will carry all kinds of logistical challenges during its proposed 501-day span, not the least of which is shielding the crew from radiation without consuming valuable resources. The team's solution is a clever one, if not especially pretty: human waste. While the walls of the Inspiration Mars spacecraft will initially be lined with water-filled bags to guard against cosmic rays, their contents will be gradually replaced with er, byproduct that will be dehydrated through the bag (possibly using polyethylene) to reclaim and purify water for drinking. As water-based materials are better at stopping radiation than metal, the approach theoretically represents the best of all worlds with less bulk, a simpler life support system and maximum room for supplies. If the Inspiration Mars group can keep the bags working at high efficiency in space, it won't have to worry about its travelers' safety; their comfort with being surrounded by their own waste may be another matter.
Roto-a-Matic retro vending machine injection molds toys while you wait (video)
The advent of 3D printing is most certainly upon us, and its helped injection molding make the crucial transition from dated tech to a retro novelty. The Roto-a-Matic has recently gone live in toy maker Rotofugi's store in Chicago, and will create a polyethylene plastic figurine for you in under a minute, provided you feed it a token. Rotofugi and product design company Squibbles INK have given the vintage Mold-a-Rama vending machine a new lease of life, and now they are looking for artists to contribute designs for future molds. Currently a one-eyed dragon designed by sculptor Tim Biskup is on offer for Chicago-based hipsters, but for the wind-averse, a token-to-toy video demo resides beyond the fold.
MIT gurus use polyethylene to suck heat away from your next CPU
Man, MIT is making all of these other places of higher learning look silly. For what seems like the fortieth time this month, scientists at the university have revealed yet another breakthrough that might just change the way we compute in the future. Polyethylene, which is about as common a polymer as they come, could very well become a vital part of the way your next processor is cooled, as MIT boffins have figured out how to cause said polymer to "conduct heat very efficiently in just one direction, unlike metals, which conduct equally well in all directions." If you're still struggling to figure out why this matters, have a listen at this: "this may make the new material especially useful for applications where it is important to draw heat away from an object, such as a computer processor chip." In fact, even Intel is taking notice of the development, though no one's saying outright when exactly this stuff will leave the lab and hit Dell's supply chain. There's no time like the present, guys. [Thanks, Kevin]
