Indiana EDU Sensing Δ 12th of January 2014 Ω 7:24 PM

ΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞ
~ University of Indiana ~ Purdue University ~ sense for Ξ	~ sense for Ξ ~ sense for Ξ ~ sense for Ξ	~ sense for Ξ ~ sense for Ξ ~ sense for Ξ
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«U.S. EDU Sensing	Θ	Θ
ΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞΞ

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~ University of Indiana

»University of Indiana
ξ the stages of manufacturing are often overlooked by the end user
ξ they invariably involve either particular equipment or a skilled craftsman;
ξ in most automated processes, machines are the preferred method
ξ throughout the assembly line, each of these machines is highly specialized to perform one or two tasks:
ξ While one device might rivet two plates together, it cannot weld, glue, or cut as well
ξ If the manufacturing process calls for such operations, they will have to be performed by another machine.
ξ As if it weren't complex enough already, consider the equipment necessary to manufacture these manufacturing machines.
ξ The concept quickly develops into a tangled web of raw materials,
ξ generalized manufacturing techniques, and specialized assembly line equipment.
ξ There is a way to simplify it all, though.
ξ The technique seems bizarre to seasoned industrialists,
ξ but is strangely familiar to all biological organisms: self-assembly.
ξ Researchers have long toyed with proof-of-concept experiments utilizing baseball-size or larger robotic sub-units
ξ to arrange themselves into a functioning "organism,"
ξ one team of scientists at Purdue University has finally achieved the same feat at the molecular level
ξ "Autopoiesis" is a term derived from Greek words, which means "self-creation."
ξ It can be applied to evolution to describe the process undergone by inorganic molecules to form the building blocks of life.
ξ Biologically, it can be used to describe the eukaryotic cell,
ξ which produces more of itself through mitosis or meiosis.
ξ These are natural occurrences familiar to most of us on at least some level.
ξ Alternatively, self-replicating machines pioneered by scientists like John von Neumann can theoretically self-replicate,
ξ drawing from local resources to build more machines.
ξ These machines have been called clanking replicators, von Neumann machines, and universal constructors.
ξ Much of the premise of nanotechnology is based around self-replicating machines.
ξ The converse of autopoiesis is allopoiesis; current manufacturing techniques are allopoietic.

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~ Purdue University

»Purdue University

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