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Title: MIT's 'Smart Sand' Can Duplicate Any Object, Creep Out Any Blogger
Source:
PCWorld
URL Source: http://www.pcworld.com/article/2531 ... ect_creep_out_any_blogger.html
Published: Apr 3, 2012
Author: Kevin Lee
Post Date: 2012-04-06 15:54:44 by FormerLurker
Keywords: None
Views: 126
Comments: 5
To test their algorithm, the researchers designed and built a system of "smart pebbles"--cubes about 10 millimeters to an edge, with processors and magnets built in. [Photo: M. Scott Brauer via MIT News] One day, the researchers imagine that you will be able to deposit an object into a box of sand-grain-sized computers and pull out a full-size replica of the original object a few seconds later. (3D printing, eat your heart out!) Each cube has magnets--which are recognizable by the reddish wires wrapped around them--on four of its six faces. [Photo: M. Scott Brauer via MIT News] The researchers are currently experimenting with a larger-scale version of their sand-computers with 10-milimeter cubes. Each cube is equipped with a rudimentary microprocessor that can run 32KB of code with just 2KB of working memory. The cubes start off in a large block formation that’s held together with magnets on four sides of each cube--two sides were left out to make room for the microprocessor and circuitry to regulate power usage. The magnets themselves are "electropermanent" in nature, meaning they only need a single electric pulse to switch between magnetized or demagnetized. While the cubes are connected, they can communicate with each other and even share power. When the block of cubes needs to reform itself into another object, it disengages unnecessary parts, which then simply fall away from the rest of the mass. The building method uses a subtractive process, which is the opposite of the usual additive approach used by most reconfigurable robots and 3D-printers. Defining the object you want to duplicate is a little more complicated since you first need to bury it inside of the pile of smart cubes. While the object is inside of the block, the cubes communicate with each other to determine the perimeter of the object. From there, it duplicates the object’s shape in another section of the block, while the rest of the mass disengages itself, leaving you with only the replica and original. (Skynet, anyone?) The DRL team has demonstrated that its smart cubes can already build 2D objects, and computer simulations show that the duplication algorithm will work with 3D objects, too. The real test will come when researchers attempt to make decrease the size of the grains while retaining enough computational power and electrical power. The DRL researchers will present their paper on Smart Sand and its algorithms at the IEEE International Conference on Robotics and Automation held in St. Paul, Minnesota this May. [MIT News via ZDNet and SlashGear] Get more GeekTech: Twitter - Facebook - RSS | Tip us off Poster Comment: Seems similar to the technology behind the "Replicators" on the Stargate television series. 
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#1. To: FormerLurker (#0)
What would Sam Kinnison say?
An old lonely slave comes back from the grave I guess he'd say something like this... deleted
The relationship between morality and liberty is a directly proportional one. "If you love wealth more than liberty, the tranquility of servitude better than the animating contest of freedom, depart from us in peace. We ask not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains rest lightly upon you and may posterity forget that you were our countrymen.” —Samuel Adams America: Israel's Handmaiden
In the future, our cat litter will spy on us.
An old lonely slave comes back from the grave deleted
The relationship between morality and liberty is a directly proportional one. "If you love wealth more than liberty, the tranquility of servitude better than the animating contest of freedom, depart from us in peace. We ask not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains rest lightly upon you and may posterity forget that you were our countrymen.” —Samuel Adams America: Israel's Handmaiden
Searching... searching... searching
For his master who's long gone on
#2. To: Prefrontal Vortex (#1)
"The real deal is this: the ‘royalty’ controlling the court, the ones with the power, the ones with the ability to make a difference, with the ability to change our course, the ones who will live in infamy if we pass the tipping points, are the captains of industry, CEOs in fossil fuel companies such as EXXON/Mobil, automobile manufacturers, utilities, all of the leaders who have placed short-term profit above the fate of the planet and the well-being of our children." - James Hansen
#3. To: Prefrontal Vortex (#1)
#4. To: Eric Stratton (#3)
Searching... searching... searching
For his master who's long gone on
#5. To: Prefrontal Vortex (#4)
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