Arts & Entertainment
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Wrap your mind around this! photo origami CU Boulder
Aug 27th
CU-Boulder ‘photo origami’ proposal
wins $2 million NSF grant
wins $2 million NSF grant
The art of origami has inspired children and artists all over the world because of the amazing objects that can be created by folding a simple piece of paper.
Now an engineering research team at the University of Colorado Boulder has won a $2 million grant from the National Science Foundation to develop a light-controlled approach for “self-assembly” mechanisms in advanced devices based on the same principles.
Known as “photo origami,” the idea is supported by NSF’s Emerging Frontiers in Research and Innovation program, which supports interdisciplinary teams working on rapidly advancing frontiers of fundamental engineering research.
CU-Boulder associate professor of mechanical engineering Jerry Qi will lead the team developing the photo origami technique. Collaborators will include CU faculty Robert McLeod of electrical engineering, Kurt Maute of aerospace engineering sciences and Elisabeth “Beth” Stade of mathematics, along with Patrick Mather of Syracuse University.
The ability to transform a flat polymer sheet into a sophisticated, mechanically robust 3-D structure will enable new approaches to manufacturing and design of devices from the microscopic to centimeter scales, according to the team. Examples include using extremely low-weight, high-strength materials to create micro-electromechanical systems with complicated 3-D architectures that can be used for microscopic sensors such as antennas or microphones, and miniature robotic devices for environmental monitoring.
Present barriers to the development of folding and unfolding mechanisms stem from the lack of understanding of scaling laws that allow researchers to generalize results obtained at various size scales, the inability to easily cause matter to “reorient” itself to achieve the desired folding patterns, and challenges in automated, sequential folding.
To overcome these challenges, the CU team will make use of recent fundamental advances in the control of polymer architecture through light-triggered chemical reactions.
“One has to accurately control how much deformation a material should have in order to obtain a precise folding angle and to determine where to fold or stop folding in order to avoid interference in the folding path and form the desired structure,” said McLeod, who will use the interaction of light with material deformation to develop optical waveguide transistors.
In this new form of logic circuit, light triggers the deformation of a soft polymer, which in turn switches the light on or off. In this way, the optical waveguide transistor will enable a structure to be pre-programmed with a folding pattern through a sequential set of switching events controlled by the shape of an origami sheet.
In recent years, CU researchers and their collaborators have made significant progress in using light to control and alter the structure of a polymer. They are able to both bend and stiffen polymer structures and to develop new, soft, shape-memory composite materials through photo-initiation techniques. Shape-memory composites are “smart” materials that have the ability to return from a temporary, deformed shape to their original shape when induced by a trigger.
In addition, the team will work with the local school district to provide research and educational opportunities for K-12 students and teachers.
Coming to CU: High-tech hallucinogenic "Swarm Wall"
Jun 4th
June 1, 2012
A monthlong summer exhibit at the University of Colorado Boulder Art Museum will feature a dynamic new media composition based on innovative robotics technology.
Called “Swarm Wall,” the large-scale interactive piece displays changing fields of color, light and sound that are driven by a distributed form of artificial intelligence.
As many as 70 intelligent “nodes” behind the piece create a swarming effect when they detect movement and communicate it with one another. The nodes exhibit swarm behavior because each performs actions solely based on its own plan and the actions of its immediate neighbors.
The 42-by-12-foot installation is the first product from a new art and technology research group on campus. The group was launched by faculty members Michael Theodore of the College of Music, who received a $44,000 grant from CU’s Innovative Seed Grant Program last year to support the collaboration, and Nikolaus Correll of the computer science department.
Also involved in the Swarm Wall is Ken Sugawara, a visiting computer science professor from Tohuku Gakuin University in Japan who is an expert in animal flocking behavior, the inspiration behind the patterns the wall displays.
The seed grant, which Correll and Theodore say already has helped them attract additional funding, was the first step toward establishing an active lab where students, faculty and professional researchers from various disciplines collaborate on cutting-edge applications of artificial intelligence.
“We’re now calling it the ‘if’ lab because we want to see what happens if artists put engineers in front of tough problems,” said Correll, who is providing space for the growing group within his own robotics laboratory in the Engineering Center at CU-Boulder.
“We want to assemble some basic, inexpensive tools that students can use to explore and to develop new applications of robotics,” Correll said.
Scattered around the lab last week were a collection of small custom circuit boards, electronic panels, items resembling ping pong balls and various other components that are being used to assemble robotic devices.
An assembly of circuit boards connected with bright orange cables also was mounted on a partition in the lab in preparation for the installation of Swarm Wall. Small mechanical arms or flippers waved back and forth as the “brains” behind the Swarm Wall were tested. Sometimes the movement was synchronized, while other times a ripple effect would occur in response to some stimuli.
“Artistic exploration can help computer scientists and engineers to ask questions they wouldn’t have otherwise asked,” said Theodore, who also serves as director of the ATLAS Center for Media, Arts and Performance.
“The difference between arts and science is very diffuse; both want to discover new things,” Theodore said. “The cool thing about art is that we can explore systems that are not of interest to classical funding agencies, but might be so after maturing in a lab like the ‘if’ lab.”
Swarm Wall is one of four pieces in “Michael Theodore: Field Theory,” an exhibition of kinetic sculpture, sound, lighting and works on paper, running June 15 through July 14 at the CU Art Museum. The exhibition is free and open to the public. An opening reception will be held on June 15, from 6 to 8 p.m. For additional information, visitors may call the CU Art Museum at 303-492-8300 or go to http://cuartmuseum.colorado.edu.
Ron Baird's BLACK WIND a new thriller crime novel quality fiction
May 26th
Twenty seconds in a young man’s life has followed him like the shadow of a curse for 27 years. Did he crack under pressure or was it simply good reflexes? Aaron Hemingway still doesn’t know and nobody ever told him because the Army had buried it in a black hole.
But in an ironic twist of karma, it was those close to Aaron who paid the price. He sometimes questioned whether the two were connected, but after his 14-year-old daughter was taken hostage by a murder suspect and then watched three men die in her bloody rescue, that was pretty much the end of the argument Aaron, a former Denver cop and newspaper reporter.
So he became a recluse, avoiding people he cared about to protect them. But after three years of that, he was ready to eat his gun. Then an old friend called and offered him a temporary job as a small town deputy marshal. Knowing what was at risk, he nevertheless took the job.
Surprisingly, things seemed to be going well, including his handling of a couple of situations that were ripe for disaster. Then, in an unprovoked but not random attack, his dog was killed and his women friend was left in a coma with a gunshot wound to the head.
Aaron discovered the identity of the man behind the attack and, breaking a vow he made after Vietnam to never kill again unless in self-defense or to protect the innocent, he swore vengeance against the man. He only saw three outcomes: he would be killed, he would succeed and be arrested or he would get away with murder. In the Malpais lava fields of western New Mexico, he found that things are not always that simple.
Available at Book stores, Amazon and on Kindle for $9.00
