Author Archives: curiouscat

Photos: Rocky Gap State Park, Maryland

photo of a mushroom Tree on trial in Rocky Gap State Park

More photos from my visit to Rocky Gap State Park, Maryland. Photos by John Hunter. Related: Nature Recreation Declining.

More travel photo essays: Bull Run Trail, Virginia – Mount Rainier National Park – Appalachian Trail, Pennsylvania

Scientists and Engineers in Congress

A list of Congressmen with science PhDs: Vernon Ehlers, Michigan, physics PhD; Rush Holt, New Jersey, physics PhD; John Olver, Massachusetts, chemistry PhD; Brian Baird, Washington, psychology PhD; and now Bill Foster, Illinois, physics PhD. Other scientists, engineers and mathematicians include: Ron Paul, Texas, biology BS, MD; Jerry McNerney, California, math PhD; Dan Lipinski, Illinois, mechanical engineering BS, engineering-economic systems MS; Nancy Boyda, Kansas, chemistry BS; Cliff Stearns, Florida, electrical engineering BS; Joe Barton, Texas, industrial engineering BS. Please comment with additions.

Another Scientist in Congress!

He is not just any old particle physicist, but quite an accomplished one, having been a co-inventor of Fermilab’s antiproton Recycler Ring. Once you’ve mastered antiprotons, the Washington political process should be child’s play. Congratulations!

Vernon Ehlers – “After three years of studying at Calvin College in Grand Rapids, Ehlers transferred and received his undergraduate degree in physics and his Ph.D. in nuclear physics from the University of California at Berkeley in 1960. After six years teaching and research at Berkeley, he moved back to Grand Rapids to Calvin College in 1966 where he taught physics for 16 years and later served as chairman of the Physics Department. During his tenure at Calvin, Ehlers also served as a volunteer science advisor to then-Congressman Gerald R. Ford.”

Russ Holt – Rep. Holt earned his B.A. in Physics from Carleton College in Minnesota and completed his Master’s and Ph.D. at NYU. He has held positions as a teacher, Congressional Science Fellow, and arms control expert at the U.S. State Department where he monitored the nuclear programs of countries such as Iraq, Iran, North Korea, and the former Soviet Union. From 1989 until he launched his 1998 congressional campaign, Holt was Assistant Director of the Princeton Plasma Physics Laboratory, the largest research facility of Princeton University and the largest center for research in alternative energy in New Jersey. He has conducted extensive research on alternative energy and has his own patent for a solar energy device. Holt was also a five-time winner of the game show “Jeopardy.”
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Visitors to the Curious Cat Science and Engineering Blog

For the month of February the Curious Cat Science and Engineering Blog had visitors from 140 countries. Granted, quite a few of those countries had fewer than 5 total visits. The top 12 countries were USA, UK, Canada, Australia, India, Germany, Netherlands, Turkey, Italy, Ireland, Mexico and France. Other countries include South Africa 23rd most visits (and 1st for Africa), Brazil 24 (1st for South America), Singapore 30, Japan 31, China 34.

We also received visits from: Ghana, Nepal, Botswana, Bahrain, Mali, Kazakhstan and Faroe Islands. No visits were registered from: Mongolia, Chad, Madagascar and Paraguay.

Those who read us only via RSS feed might not have noticed we added a tag cloud this month. So you can find, among other things: some of our favorite posts – answers to why… – bacteria related posts – post on economic topics and fun posts.

Google Summer of Code 2008

Over the last three years Google Summer of Code has provided 1500 students from 90 countries the chance to work on open source projects. It also has provide some great software and software enhancements to the open source community. Google has increased their funding by another $1 million. Each participant will receive $4,500 as a stipend.

I don’t understand why they have such a short window of opportunity to apply – but this is how they do it every year. They are accepting applications from open source projects, to act as mentoring organizations, through March 13th. Student applications will be accepted from March 24th to March 31st. See Google’s announcement.

externs.com offers listings of science internships and engineering internships.

Laws of Physics May Need a Revision

Something seems wrong with the laws of physics

Einstein’s general theory of relativity swept Newton away by showing that gravity operates by distorting space itself.

Even Einstein, however, may not have got it right. Modern instruments have shown a departure from his predictions, too. In 1990 mission controllers at the Jet Propulsion Laboratory (JPL) in Pasadena, California, which operates America’s unmanned interplanetary space probes, noticed something odd happen to a Jupiter-bound craft, called Galileo. As it was flung around the Earth in what is known as a slingshot manoeuvre (designed to speed it on its way to the outer solar system), Galileo picked up more velocity than expected. Not much. Four millimetres a second, to be precise. But well within the range that can reliably be detected.
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Altogether, John Anderson and his colleagues analysed six slingshots involving five different spacecraft. Their paper on the matter is about to be published in Physical Review Letters. Crucially for the idea that there really is a systematic flaw in the laws of physics as they are understood today, their data can be described by a simple formula. It is therefore possible to predict what should happen on future occasions.

That is what Dr Anderson and his team have now done. They have worked out the exact amount of extra speed that should be observed when they analyse the data from a slingshot last November, which involved a craft called Rosetta. If their prediction is correct, it will confirm that the phenomenon is real and that their formula is capturing its essence. Although the cause would remain unknown, a likely explanation is that something in the laws of gravity needs radical revision.

An interesting puzzle that illustrates how scientists attempt to confirm our understanding and real world results. And those efforts include uncertainty and confusion. Too often, I think, people think science is only about absolute truth and facts without any room for questions. We understand gravity well, but that does not mean we have no mysteries yet to solve about gravity.

Research paper: The Anomalous Trajectories of the Pioneer Spacecraft

Programmers

Programming Dinosaurs - comic

Dinosaur Comics: “programming is for folks who are thrilled when a computer reminds them they’re missing a bracket or a semicolon”

Vaccine For Strep Infections

Engineered Protein Shows Potential as a Strep Vaccine

A University of California, San Diego-led research team has demonstrated that immunization with a stabilized version of a protein found on Streptococcus bacteria can provide protection against Strep infections, which afflict more than 600 million people each year and kill 400,000.
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Group A Streptococcus (GAS). GAS causes a wide variety of human diseases including strep throat, rheumatic fever, and the life-threatening “flesh-eating” syndrome called necrotizing fasciitis. Studies were performed using M1 protein, which represents the version of M protein present on the most common disease-associated GAS strains.
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“We created a modified version of M1 with a more stable structure, and found that it is just as effective at eliciting an immune reaction, but safer than the original version of M1, which has serious drawbacks to its use in a vaccine.”

Honda Engineering

Inside Honda’s brain by Alex Taylor III

why is Honda playing with robots? Or, for that matter, airplanes? Honda is building a factory in North Carolina to manufacture the Hondajet, a sporty twin-engine runabout that carries six passengers. Or solar energy? Honda has established a subsidiary to make and market thin-film solar-power cells. Or soybeans? Honda grows soybeans in Ohio so that it can fill up cargo containers being shipped back to Japan. The list goes on. All this sounds irrelevant to a company that built some 24 million engines last year and stuffed them into everything from cars to weed whackers.
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On fuel cells, Honda is literally years ahead of the competition. The FCX Clarity will go on sale in California this summer. It is powered by a fuel cell that uses no gasoline and emits only water vapor. Though mass production is at least a decade away, the Clarity is no mere test mule. Elegant and efficient, its hydrogen-powered fuel-cell stack is small enough to fit in the center tunnel – a significant improvement over other, bulkier power packs – and robust enough for a range of 270 miles.

The wellspring of Honda’s creative juices is Honda R&D, a wholly owned subsidiary of Honda Motor. Based in Saitama, west of Tokyo, R&D engineers create every product that Honda makes – from lawn mowers to motorcycles and automobiles – and pursue projects like Asimo and Hondajet on the side. Defiantly individualistic, R&D insists on devising its own solutions and shuns outside alliances. On paper it reports to Honda Motor, but it is powerful enough to have produced every CEO since the company was founded in 1948.
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The engineer in Fukui [Honda’s president and CEO] cannot help but be intrigued by what his former colleagues are up to, and his office is only a few steps away from Kato’s. But even with the CEO just down the hall, says Kato, “We want to look down the road. We do not want to be influenced by the business.”
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Honda allows its engineers wide latitude in interpreting its corporate mission. “We’ve been known to study the movement of cockroaches and bumblebees to better understand mobility,” says Frank Paluch, a vice president of automotive design. Honda R&D gets about 5% of Honda’s annual revenues. Most of the money goes to vehicle development, not cockroach studies
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mistakes like the Insight are also the exception. R&D has provided Honda with a long list of engineering firsts that consumers liked, including the motorcycle airbag, the low-polluting four-stroke marine engine, and ultralow-emission cars.

Antarctic Fish “Hibernate” in Winter

This is the first time fish have been seen actively becoming torpid—a state similar to hibernation in land animals—as part of an annual cycle. “A lot of freshwater fish go [unexpectedly] dormant in winter because a drop in temperature lowers their metabolism,” said study co-author Hamish Campbell, a zoologist at the University of Queensland, Australia.

“By contrast, these Antarctic fish actively reduce their ‘cost of living,'” he said… “The fish became 20 times less active in winter compared to summer,”… About every week or so the cod wake up and swim around for a few hours, the team observed. “This is quite similar to ‘denning’ in bears, where the hibernation isn’t so deep and the animals can be disturbed, then spend some time awake before going back to bed,” Fraser said.

Full paper: Hibernation in an Antarctic Fish: On Ice for Winter – Arctic Sharks – Antarctic Robo-sub

2008 Draper Prize for Engineering

Draper Prize for Engineering Medal

2008 Charles Stark Draper Prize will be awarded to Rudolf Kalman for the development and dissemination of the optimal digital technique known as the Kalman Filter. The award recipient receives a $500,000 cash award. 2007 Draper Prize to Berners-Lee – 2006 Draper Prize for Engineering

The Kalman Filter uses a mathematical technique that removes “noise” from series of data. From incomplete information, it can optimally estimate and control the state of a changing, complex system over time. The Kalman filter revolutionized the field of control theory and has become pervasive in engineering systems. It has been applied to systems and devices in nearly all engineering fields and continues to find new uses today. Applications include target tracking by radar, global positioning systems, hydrological modeling, atmospheric observations, time-series analyses in econometrics, and automated drug delivery.

Administered by the National Academy of Engineering, the Draper Prize is endowed by The Charles Stark Draper Laboratory, Inc., and was established in 1988. The Prize is awarded for outstanding achievement, particularly innovation and reduction to practice, in engineering and technology contributing to the advancement of the welfare and freedom of humanity.