Category Archives: Engineering

Atom-thick Carbon Transistor

Atom-thick carbon transistor could succeed silicon by Tom Simonite:

Transistors more than four times smaller than the tiniest silicon ones – and potentially more efficient – can be made using sheets of carbon just one-tenth of a nanometre thick, research shows. Unlike other experimental nanoscopic transistors, the new components require neither complex manufacturing nor cryogenic cooling.

The transistors are made of graphene, a sheet of carbon atoms in a flat honeycomb arrangement. Graphene makes graphite when stacked in layers, and carbon nanotubes when rolled into a tube. Graphene also conducts electricity faster than most materials since electrons can travel through in straight lines between atoms without being scattered. This could ultimately mean faster, more efficient electronic components that also require less power.

Editorial: Engineers of the Future

Engineers of the future:

Technology education programs at all grade levels seek to afford students opportunities to tinker, to discover how things work, and to explore the designed world. At the elementary school level, students may learn about simple machines designed for specific tasks or about the basics of electricity by actually building simple circuits. In middle school, students may explore concepts in more detail, perhaps by designing and building a model of a bridge or a gliding aircraft. In high school, students may have opportunities to design an affordable home, take something apart to see how it works, or design and build a robot that would be used for a rescue mission or some other specific purpose. All of these experiences are related to the processes of engineering.

This is the type of learning that can enhance a future engineer’s experience, but also the type that cannot be included in the typical upper grade level math or science classroom for one main reason: math and science teachers generally do not have the time and may not have the interest or expertise needed for in-depth study of technology.

The editorial makes a good point. As import and primary science and math education are they are not enough. Effort to create an environment where students can experiment and use their hands and minds to solve problems is incredibly valuable. Teaching in this way is not as simple as it might seem, see example below for some ideas and resources that can help create these type of learning institutions.

Examples: Middle School Engineers – k-12 Engineering Education – Engineering is Elementary – Colorado Science Teacher of the Year – Building minds by building robots – Leadership Initiatives for Teaching and Technology – Engineering Education Program for k-12 – Project Lead The Way – k-12 science and engineering posts

Medical Study: Antioxidant Supplements Don’t Extend Life

Antioxidant Supplements Don’t Extend Life Span, Study Finds

Representatives of the vitamin industry, as well as some other researchers, disputed the findings, criticizing the study for, among other things, including people who were already sick. People tend to take vitamins to stay healthy, they said.

“There’s a large body of data that shows that antioxidant supplementation is beneficial,” said Andrew Shao of the Council for Responsible Nutrition, an industry group. “The message to the average consumer is: Don’t pay attention to this. This doesn’t apply to you. You can go ahead and continue taking your antioxidant supplements in addition to the other things you do in your life to stay healthy.”

But Gluud and his colleagues defended the findings, saying that the study used careful methods developed by the internationally respected Cochrane Collaboration, an independent nonprofit effort to methodically assess medical claims. The analysis included many large studies involving healthy people, and the increased risk was clear after accounting for factors that could confuse the findings, Gluud said.

Economic Gains from Science

Gaze into future for state’s economy:

For policymakers, that means: Invest in the state’s educational system, especially the University of Wisconsin System, and use tax policy to encourage investors to supply the money to make business ideas grow.
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TomoTherapy, 10 years old, already employs 500 people. Co-founded by two UW-Madison professors, it was financially backed by investment groups in Madison, Milwaukee and California. The next step may be to follow Madison-area high-tech businesses Third Wave and Sonic Foundry into the public stock market.

GenTel, employing 17, started at University Research Park, has moved to Fitchburg and plans to open an office in North Carolina. The company has found additional financing from investors, including groups in Madison and Appleton. Aruna sprouted from brainpower and research at the University of Georgia, but it licenses human em bryonic stem cell technology from the Wisconsin Alumni Research Foundation. Because UW-Madison is a hotbed of stem cell research, moving its jobs and income to Wisconsin would make sense.

Asimo Robot: Running and Climbing Stairs

ASIMO Brings Engineering to Life at the Dream Factory:

The Dream Factory is an educational initiative organized by Honda of the UK Manufacturing Ltd (HUM) in association with The Science Museum to provide inspiration and a greater excitement about the subject of engineering. Aimed at Key Stage 3 students (ages 11-13 years), each workshop has been specifically designed to explain a basic engineering principle and show how this is then used in Honda’s leading edge technology. ASIMO joins Punk Science presenters from Discovery Channel’s Scientific Show and the HUM team to help inspire over 500 local school children.

Saving Mankind

Hollywood got it wrong, this is how you stop an apocalyptic asteroid:

Rather than Hollywood’s preferred option, engineers are trying to develop unmanned rockets that can land on space rocks and use the asteroids’ own material to propel them into a safer orbit.
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“It is like throwing rocks out of a rowing boat on a lake. The rocks go in one direction and the boat is slowly pushed in the other under the laws of physics,” said John Olds, the chief executive of SpaceWorks, the firm behind the scheme. “Over several months we think we can make the difference between a hit and a miss.” Astronomers fear that a 400-yard wide asteroid will pass dangerously close to the Earth within 30 years. Typically, one the size of a football pitch strikes every 100 years or so, and it is also almost 100 years since the last major impact which caused an explosion equivalent to a 15 megaton nuclear bomb in Tunguska, Siberia on June 30, 1908.

Car Elevator (for parking)

Interesting photos of a NYC parking garage with elevators and the looks of a fancy mall not a garage. Cars are driven onto a palet and then the automated systems take it from there. Parking as a Destination:

The project is the work of AutoMotion Parking Systems, the American subsidiary of Stolzer Parkhaus of Strassburg, Germany. Stolzer Parkhaus has built 28 automated garages in 11 countries since its first, in Kronach, Germany, in 1996. The software and hardware that moves the cars around in the garages were adapted from systems that store materials in warehouses.
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“Lasers check that the car is aligned,” Mr. Milstein said, and determines that it is not one of the trucks or S.U.V.’s too big for the garage. The driver locks the car, takes the keys and picks up an electronic card from a nearby machine. A large door closes behind the car; motion detectors ensure that no children or pets are left behind.

Then the pallet holding the car slides below ground level, into two subterranean floors of storage. “It’s simple — park, swipe and leave,” Mr. Milstein said. The returning driver pays — using a credit card at a machine, or handing cash to the human “parking concierge” in a booth. The machinery retrieves the pallet holding the car, which rises to ground level, pointing toward the exit. You unlock the doors and drive away.

“You get your car in under three minutes,” Mr. Milstein promises. “It’s as easy as an A.T.M. or E-ZPass.” Rates will be comparable to conventional parking in Manhattan, he said, about $400 a month. For the driver, the advantages of an automated system go beyond convenience and speed. The car remains untouched and unopened, and with the parking area ostensibly off limits.

Engineering is cool. Related: The High Cost of Free Parking

Wave Energy

Orkney to get ‘biggest’ wave farm:

Of the Pelamis scheme, he said: “This will be the world’s biggest commercial wave project – significantly bigger than the major Portuguese scheme. “Scotland has the potential to generate a quarter of Europe’s marine energy and kick-starting the sector is vital if we are to create a significant industry based in Scotland and meet our long-term renewables targets.”

Mr Stephen said the industry had the potential to create thousands of jobs and attract millions of pounds of investment. Scottish Power’s director of renewables, Keith Anderson, said: “This is a massive step forward. “It will be a test of the actual devices that will be used commercially and, if successful, should help propel Scotland into the forefront of marine energy throughout the world.”

NSF Robotics Report

Cool NSF Robotics Report:

Today, NSF supports mechanical engineers, electrical engineers, computer scientists and other researchers as they develop future generations of intelligent robots. These engineers and computer scientists cooperate with biologists, neuroscientists and psychologists to exploit new knowledge in the study of the brain and behavior. NSF also supports education activities that use robots as a platform for studying mechanics, electronics, software and other topics.

Robots and Biology:

A research team at the University of Illinois led by Fred Delcomyn is one group that has developed a six-legged robot modeled after cockroaches, in this case the American cockroach Periplaneta americana. The researchers hope to mimic the insect’s extraordinary speed and agility by learning and applying the biological structure and principles in the robot’s design.

Insect flight, particularly the airborne maneuvers of the fruit fly Drosophila melanogaster, has been the decade-long research pursuit of Michael Dickinson at Caltech. Dickinson has tethered flies to poles and mimicked them with robots to examine the mechanics of their muscles and the flight control behind the rapid rotation of their wings.

Stimulate Innovation

What if America Had an Innovation Czar?, good ideas from Keven Kelly:

1. More large prizes, like the Grand Challenger, for specific results. Cheap, effective, popular. The best Mars rover gets sent to Mars, etc.
2. Reform patent law, to reflect reality of current conditions (no submarine patents, etc.).
3. Mandate science fairs in high schools, the secret sauces for American innovation.
4. Open-source scientific literature.