materials science
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Apple hires carbon fiber expert to posit composites
If you're going to compete in the consumer electronics business then you'd better have a solid grasp of industrial design and materials science. Otherwise, you're just another manufacturer trying to eke profit from drab slabs of commodity plastic. With the exception of the MacBook, Apple's entire Mac lineup is currently cut from aluminum. However, Apple's been caught experimenting with its newly acquired Liquidmetal materials recently, even as rumors swirl around new ultra-lightweight and durable carbon fiber components and enclosures. Speculation about the latter has been fueled by an Apple patent application for a process that would use carbon fiber materials woven into the reinforced device housings of mobile telephones, laptops, desktops, and tablets. Interestingly enough, the patent app was filed by Kevin M. Kenney (developer of the first all carbon fiber bicycle frame) on behalf of Apple back in 2009, a man who changed his job title to "Senior Composites Engineer at Apple Inc." on LinkedIn at some point after March 1st (according to Google cache). Of course, a carbon fiber laptop is far from unique -- just reference the Sony G11 from 2007 or 2008's Voodoo Envy 133 if you want to see how it's done. But if Apple makes a wholesale shift to carbon fiber in the months ahead then you can expect the horde of me-too OEMs to follow suit a year later. See the before and after LinkedIn profiles for Kenney after the break.
New coating may lead to fog- and dirt-free windshields
If you're like us and haven't washed your car since, like, ever, you're probably used to the windshield getting all fogged up (not in the good, make out point way, however) and habitually swiping at the glass with your sleeve while swerving between lanes and praying that your airbag still works. Well thanks to a new coating developed by researchers at Purdue University, your dangerous driving habits may soon be a thing of the past (well, except for those occasions when you're texting your buddies while eating a cheeseburger and fiddling with the radio), as this material has the unique ability to both prevent the formation of water droplets (no more fog!) as well as cause oil-based substances to bead up for easy cleaning (no more road grime!). The science behind this breakthrough is a little boring (i.e. we don't really understand it), but it seems that by covalently bonding a DuPont substance known as Zonyl FSN-100 to ordinary glass, the component polymers are able to change shape and react differently depending on the chemicals they come into contact with. After figuring out a way to apply the coating cheaply through spray or roll-on techniques, the next step for the Boilermakers will be to coax the material into repelling other nasty substances, making it suitable for use on the gadgets and glasses we geeks hold so dear.
Shape-shifting paper could help tiny bots take flight
A new breakthrough in materials science may pave the way for those inevitable swarms of tiny flying robots that will one day darken the skies and strike fear into us all, as researchers in South Korea have succeeded in coaxing specially-prepared cellophane paper to rapidly curve and straighten itself in an insect-like flapping motion. Although scientists have apparently known since the 1950's that wood was piezoelectric, meaning that it bends slightly when exposed to electricity, it took a team from Inha University with help from Texas A&M to discover that the same property also holds true for other cellulose-based material. By coating both sides of a sheet of cellophane with thin layers of gold, the researchers were able to create so-called Electroactive paper (EAPap) so sensitive that the voltage from a microwave beam provides enough power to trigger its unique shape-changing abilities. Oddly enough, no one is quite sure of the physics behind the transformation -- theories center around pressure changes resulting from the movement of ions -- but regardless of how it works, we're sure that more than a few governments will be most interested in deploying this technology to beef up their domestic and international surveillance programs.[Via Roland Piquepaille and ScienceNOW]
