Author Archives: curiouscat

Himalayas Geology

The mystery of why the Himalaya mountains and the Tibetan plateau are the highest in the world has at last been answered, with the discovery of a gigantic chunk of rock slowly sinking towards the centre of the Earth. When the massive slab – up to eight times the area of the UK and as thick as a dozen Everests on top of each other – dropped off, the lighter crust above it rebounded upwards like a cork released under water, geophysicists say. This “sudden uplift” would have raised the Himalayas by as much as 2km (1.24 miles) to their present height.

If not for the surge, Sir Edmund Hillary and Sherpa Tenzing Norgay might have found themselves reaching the “roof of the world” by conquering Aconcagua (6,962m) in Argentina while Everest languished at a mere 6,848m above sea level, 2,000m below its actual peak. The discovery of the missing mantle – the cold, heavy rock beneath the crust – was revealed last week by Professor Wang-Ping Chen at the University of Illinois, whose team used more than 200 super-sensitive seismometers strung across the Himalayas, from India deep into Tibet.
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But some scientists remain sceptical. One geologist at Cambridge, who wanted to remain anonymous because he hadn’t yet read Professor Chen’s paper, suggested that the slab could be the remains of the Tethys Ocean plate. Professor England counters that both the Asian and Indian plates have moved north since then

Iowa Grapples with Engineer Shortage

State grapples with engineer shortage:

“In the past four years or so, it’s become increasingly difficult to fill positions, especially for people who have experience and can come in with a good skill set,” Dougherty said. “In some instances, you simply go without filling those jobs for a long time.”

Loren Zachary, an assistant dean at the ISU College of Engineering, said enrollment has been mostly in a downward trend over the past six years. In 2001, the college had 1,556 new freshmen; in the fall of 2006, freshman enrollment was 1,213, which was up slightly from 2005’s enrollment of 1,155. Of the 800 or so students who graduate with a bachelor’s degree in engineering from ISU each year, more than 60 percent leave the state for employment, according to Hanneman’s figures.

“Certainly you have a lot of engineering students who are leaving the state,” said the IES’s Scott. “You’ll always have that because the universities attract many out-of-state students.” Zachary said ISU has only a small number of engineering students who are women or minorities. For the current academic year, 14.5 percent of undergraduate engineering students are female. These are two demographics the university is targeting to boost enrollment. “We need more females in engineering,” Zachary said. “It’s an untapped market for us.”

The article mentions several programs for primary and secondary school students we have mentioned previously: Project Lead the Way, Math Counts and FIRST LEGO League

VirtuSphere

The VirtuSphere platform consists of a large hollow sphere that sits on top of a base and allows the sphere to rotate 360 degrees. Wearing a wireless, head-mounted display, users can step inside the sphere to fully interact in immersive virtual environments. The VirtuSphere enables 6 degrees of freedom – one can move in any direction; walk, jump, roll, crawl, run over virtually unlimited distances without encountering real-world physical obstacles.

VirtuSphere systems are made to client specifications and typically include an easy-to- assemble sphere, a base platform that enables it to rotate, a head-mounted display, 3D sensors, sphere rotation trackers, a computer, device drivers and 3D software applications.

See videos of the sphere in action

Robot Looks for Ivory-billed Woodpecker

Robot watches out for rare bird:

The system uses two video cameras to capture continuous images of the sky that are scrutinised for evidence of bird life by sophisticated software.
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“We have caught some very exciting images of birds.” No pictures of the charismatic red, white and black ivory-billed woodpecker have yet turned up.
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Advanced algorithms analyse each frame, discarding the images it believes does not contain an image of a bird and saving those that it thinks does.

$35 million to the USC School of Engineering

The 2006 Slate 60: Donations

Ming Hsieh, 50, founder of Cogent, a technology firm in Pasadena, Calif., that specializes in sophisticated identification systems including fingerprinting, gave $35 million to the University of Southern California’s Viterbi School of Engineering in Los Angeles to coincide with the 100th anniversary of its electrical-engineering program. Hsieh (pronounced “shee”) graduated from the university in 1984 with a master’s degree in electrical engineering after earning his bachelor’s degree in the same field a year earlier. In exchange for this gift, his first to the university, the department has been renamed in his honor. Born on a rice farm in northern China, Hsieh grew up very poor. As a child, he constructed small radios and televisions from spare parts, according to a university spokesman. His interest in electronics was stoked by an uncle, and Hsieh emigrated to the United States to attend college after coming into an inheritance. He recently became a naturalized U.S. citizen.

Digital Pen

Cool gadget –Logitech io2 Digital Pen. Take notes on paper and then dock the pen in your computer and have the notes captured in your computer. It can convert your handwriting to digital text as though you typed it in. You can also import drawings and sketches from the pen as jpg, gif, png etc. files. It seems the pen only works with their paper which seems like a bad design for customers, but those interested in gadgets might like it.

Aussies Look to Finnish Innovation Model

Aussies look to Finnish Innovation Model:

Australian policy makers are looking to Finland for inspiration in their drive to bring the nation closer to the dream of thriving technological innovation. The country’s president and other Finnish representatives are in Sydney to share with Australian researchers the strides the nation has made in the past three decades. Home of companies such as Nokia, the world’s largest mobile phone manufacturer, Finland has captured the attention of governments looking to shift their economic base away from traditional industries towards a more innovative focus.

Finland’s research and development spend accounts for 3.5 per cent of its gross domestic product (GDP), a higher percentage than that of most European Union nations. It intends to lift this percentage to four per cent by 2010. Australia’s spending on research in comparison was 1.8 per cent of GDP in 2004/05, below the Organisation for Economic Cooperation and Development (OECD) average of 2.3 per cent.

Using IT to Improve Construction

Teicholz awarded top construction engineering prize:

One of CIFE’s biggest innovations is a program that visualizes the various stages of a construction project over time using 3-D models, like a digital movie. The models, which integrate hundreds of building components in an understandable way, can be shared early in the design stage and can straightforwardly communicate a complex schedule to everyone, Teicholz says. “Better decisions can be made about every aspect of the design rather than trying to improve the design after everyone has completed their work,” he says.

The need to correct mistakes after the fact is seen all too often in construction projects, says Martin Fischer, professor of civil and environmental engineering and current CIFE director. Walls built prematurely might have to be torn down, for example, or two work crews that did not communicate might plan to be in the same place at the same time. Time, labor and materials are wasted, and the final cost of the project increases.

Cost of Powering Your PC

The cost of leaving your PC on

Have you ever wondered how much it’s costing you to leave a computer on 24 hours a day, 7 days a week?
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Here’s the kilowatt-hour calculation for my server, which draws ~160 watts: 160 watts * (8,760 hours per year) / 1000 = 1401.6 kilowatt-hours

The other thing you’ll need to know is how much you’re paying for power in your area. Power here in California is rather expensive and calculated using a byzantine rate structure. According to this recent Mercury News article, the household average for our area is 14.28 cents per kilowatt-hour. 1401.6 kilowatt-hours * 14.28 cents / 100 = $200.15 So leaving my server on is costing me $200 / year, or $16.68 per month. My home theater PC is a bit more frugal at 65 watts. Using the same formulas, that costs me $81 / year or $6.75 per month.

Power could cost more than servers, Google warns: “A Google engineer has warned that if the performance per watt of today’s computers doesn’t improve, the electrical costs of running them could end up far greater than the initial hardware price tag.”

Women Working in Science

Progress Over the Long Term

The commission found that women have doubled their share of bachelor’s degrees in science and engineering over the last four decades. In 1966, they earned one quarter (24.8 percent) of bachelor’s degrees in those fields, while in 2004, they earned half (50.4 percent). Over the same time span, women also gained a dramatically greater percentage of master’s degrees – 13.3 percent in 1966 versus 43.6 percent in 2004. At the doctorate level, the increase was especially noteworthy – 8 percent in 1966 compared to 37.4 percent in 2004.

Proportion of Females in the following fields, from the article:
Psychologists 67.3%
Biological Scientists 48.7%
Computer Programmers 26.0%
Chemical Engineers 14.3%
Mechanical Engineers 5.8%