If you've never seen the rise and fall of humanity as told by a series of pulleys, levers, and CO2 rockets, now's your chance -- a team of Purdue engineers have built a contraption that not only tells the history of the world through the end of days, but is also a contender for the world's largest Rube Goldberg machine. The Purdue team's "Time Machine" catalogs a history of dinosaurs, war, and rock 'n roll before finally culminating in a cataclysmic inferno and efflorescent renewal in 232 steps -- narrowly beating out the previous record of 230 set by Ferris State University in 2010. Impressive, but not officially the "world's largest" just yet-- the team is submitting a video of a flawless run to Guinness World Records to certify the historic thingamajig, hopefully eking out a victory with its two step lead.
As you may know, crafting a katana is a delicate process that involves carefully constructing a razor-sharp high-carbon edge around a soft shock-absorbent core. One day though, smiths and forging fires could be replaced by electrode-wielding mad-scientists, with the technology to selectively harden and soften metal at will. At least that's what we envisioned when we read about Jörg Weißmüller's breakthrough research in the field of nanomaterials. The German scientist discovered that by placing precious metals in acid he could create tiny ducts through corrosion. Once those channels are flooded with a conductive liquid, electrical currents can be used to harden the material and, if you change your mind about the brittle results, the effect can easily be reversed to make it soft again. The tech could eventually lead to self-healing vehicle armor or scratch-resistant cellphones -- but, really, we just want to zap our way to a high-quality samurai sword. Physorg
Comments
Post a Comment