Java applets illustrating concepts in math, physics and engineering including: Coupled Oscillations, Digital Filters, 3-D Magnetostatic Fields and Ordinary Differential Equations.
Related: Satellite Tracker from NASA – Non-Newtonian Fluid Demo
Category Archives: Engineering
Self-assembling Nanotechnology in Chip Manufacturing
Read more information about the content of the – IBM Brings Nature to Computer Chip Manufacturing:
the first-ever application of a breakthrough self-assembling nanotechnology to conventional chip manufacturing, borrowing a process from nature to build the next generation computer chips. The natural pattern-creating process that forms seashells, snowflakes, and enamel on teeth has been harnessed by IBM to form trillions of holes to create insulating vacuums around the miles of nano-scale wires packed next to each other inside each computer chip.
In chips running in IBM labs using the technique, the researchers have proven that the electrical signals on the chips can flow 35 percent faster, or the chips can consume 15 percent less energy compared to the most advanced chips using conventional techniques.
Microorganisms on Spaceships
Preventing “Sick” Spaceships, NASA:
Moreover, the mass of water was only one of several hiding behind different panels. Scientists later concluded that the water had condensed from humidity that accumulated over time as water droplets coalesced in microgravity. The pattern of air currents in Mir carried air moisture preferentially behind the panel, where it could not readily escape or evaporate.
Nor was the water clean: two samples were brownish and a third was cloudy white. Behind the panels the temperature was toasty warm—82ºF (28ºC)—just right for growing all kinds of microbeasties. Indeed, samples extracted from the globules by syringes and returned to Earth for analysis contained several dozen species of bacteria and fungi, plus some protozoa, dust mites, and possibly spirochetes.
But wait, there’s more. Aboard Mir, colonies of organisms were also found growing on “the rubber gaskets around windows, on the components of space suits, cable insulations and tubing, on the insulation of copper wires, and on communications devices,”
Photo: Dust mite was found floating in a globule of water onboard Mir. Other microorganisms collected include protozoa and amoeba. [Read more – Microbial Characterization of Free Floating Condensate
aboard the Mir Space Station – pdf]
Related: Boiling Water in Space – Voyager 1: Now 100 Times Further Away than the Sun – NASA Engineering Challenges
New Yorker on CERN’s Large Hadron Collider
Can a seventeen-mile-long collider unlock the universe?
A proton is a hadron composed of two up quarks and one down; a neutron consists of two downs and one up.) Fermions also include neutrinos, which, somewhat unnervingly, stream through our bodies at the rate of trillions per second.
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The L.H.C., Doser explained, relies on much the same design, and, in fact, makes use of the tunnel originally dug for LEP. Instead of electrons and positrons, however, the L.H.C. will send two beams of protons circling in opposite directions. Protons are a good deal more massive than electrons—roughly eighteen hundred times more—which means they can carry more energy. For this reason, they are also much harder to manage.
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The L.H.C., Doser explained, relies on much the same design, and, in fact, makes use of the tunnel originally dug for LEP. Instead of electrons and positrons, however, the L.H.C. will send two beams of protons circling in opposite directions. Protons are a good deal more massive than electrons—roughly eighteen hundred times more—which means they can carry more energy. For this reason, they are also much harder to manage.
“Basically, what you must have to accelerate any charged particles is a very strong electric field,” Doser said. “And the longer you apply it the more energy you can give them. In principle, what you’d want is an infinitely long linear structure, in which particles just keep getting pushed faster and faster. Now, because you can’t build an infinitely long accelerator, you build a circular accelerator.” Every time a proton makes a circuit around the L.H.C. tunnel, it will receive electromagnetic nudges to make it go faster until, eventually, it is travelling at 99.9999991 per cent of the speed of light. “It gets to a hair below the speed of light very rapidly, and the rest of the time is just trying to sliver down this hair.” At this pace, a proton completes eleven thousand two hundred and forty-five circuits in a single second.
Related: CERN Pressure Test Failure – String Theory is Not Dead
$10 Million for Engineering Education Scholarships
$10 million perk aims to help prove engineering is the profession to pursue (link broken)
Kao today will announce that his family foundation is donating $10 million to establish scholarship funds at six regional universities for students majoring in electrical and computer engineering. Kao, an electrical engineer who co-founded Garmin, said he decided to fund the program because he was concerned the United States was losing its edge in engineering and design.
“As a business leader of a company like Garmin, and as an immigrant, I feel it should be a real concern for this country,” Kao said. “I don’t think it’s good for a country to be a pure service business.” The education initiative is the somewhat private billionaire CEO’s first significant endowment in the Kansas City area. “Compared to Asian countries, the career of engineer is somewhat overlooked” in the United States, Kao said. “Young kids don’t aspire to be engineers.”
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The endowment from the Kao Family Foundation will be used to fund 100 scholarships a year, offering students $5,000 annually. It will be tied in with Garmin’s internship program, offering 75 or more summer jobs that include a furnished apartment and health and dental benefits.
Good. Related: Increasing American Fellowship Support for Scientists and Engineers – Science and Engineering Scholarships and Fellowships – Engineering Internships – $35 million to the USC School of Engineering
3-D Images of Eyes
Future clinical studies, as well as further development, may someday enable ophthalmologists to routinely obtain three-dimensional “OCT snapshots” of the eye, containing comprehensive volumetric information about the microstructure of the retina. Such snapshots could potentially improve diagnoses of retinal diseases such as diabetic retinopathy, glaucoma and age-related macular degeneration.
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The current research was sponsored by the National Science Foundation, the National Institutes of Health and the Air Force Office of Scientific Research.
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The current research was sponsored by the National Science Foundation, the National Institutes of Health and the Air Force Office of Scientific Research.
CDC Advice on the Use of Masks to Prevent Flu
CDC offers advice on citizen use of masks, respirators:
Though there is little scientific evidence to go on, wearing a surgical face mask may make sense for people who have to go into crowded public places during an influenza pandemic, federal health officials said today.
Furthermore, people who care for a pandemic flu patient at home or have other close contact with sick people in a pandemic should consider wearing an N-95 respirator, a more elaborate type of mask designed to stop virus-sized particles, the Centers for Disease Control and Prevention (CDC) advised.
CDC officials said avoiding crowded conditions and infected people are the most important precautions in a pandemic, but masks and respirators may provide additional protection. Standard precautions such as hand hygiene and social distancing should also be used, officials said.
Design for the Unwealthiest 90 Percent
Design for the unwealthiest 90 percent by Alice Rawsthorn:
Many humanitarian designers focus on helping the needy to enhance their earning potential by setting up new businesses, or running existing ones more efficiently. The Bamboo Treadle Pump enables poor farmers in countries like Bangladesh, Cambodia and India to pump up groundwater during the dry season. The Big Boda Load-Carrying Bicycle provides cheap transport in Kenya and Uganda to carry hundreds of pounds of cargo or two passengers using pedal-power. And thanks to the KickStart MoneyMaker Block Press, eight workers can produce up to 800 building blocks a day from soil and a small quantity of cement.
Related: Appropriate Technology – Safe Water Through Play – $100 Laptop
Funding for Science and Engineering Researchers
To authorize programs for support of the early career development of science and engineering researchers, and for support of graduate fellowships, and for other purposes. passed the house on a vote of 397 – 20 and was forwarded to the senate. From the majority whips talking points:
supports outstanding researchers in the early stages of their careers through grants at the National Science Foundation (NSF)
and the Department of Energy of $80,000 per year for 5 years
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enlarges an existing program at NSF supporting graduate students in multidisciplinary fields of national importance
and the Department of Energy of $80,000 per year for 5 years
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enlarges an existing program at NSF supporting graduate students in multidisciplinary fields of national importance
This bill started with the same name as the Sowing the Seeds Through Science and Engineering Research Act – though seems to be missing much on fellowships now.
Related: Increasing American Fellowship Support for Scientists and Engineers – Presidential Early Career Award for Scientists and Engineers
Innovation with Math
Invented by scientists at the nearby Los Alamos National Laboratory in the 1980s, complexity science is a gumbo of insights drawn from fields as diverse as biology, physics, and economics. At its core is the belief that any seemingly complex and utterly random system or phenomenon–from natural selection to the stock market–emerges from the simple behavior of thousands or millions of individuals. Using computer algorithms to stand in for those individual “agents,” scientists discovered they could build fantastically powerful and detailed models of these systems if only they could nail down the right set of rules.
When Brown arrived in town in the late 1990s, many of the scientists-in-residence at the Santa Fe Institute–the serene think tank dedicated to the contemplation of complexity–were rushing to commercialize their favorite research topics. The Prediction Co. was profitably gaming Wall Street by spotting and exploiting small pockets of predictability in capital flows. An outfit called Complexica was working on a simulator that could basically model the entire insurance industry, acting as a giant virtual brain to foresee the implications of any disaster. And the BiosGroup was perfecting agent-based models that today would fall under the heading of “artificial life.”