Posterous theme by Cory Watilo

Filed under: news

Earthquake Magnitude & Earthquake Energy

Japan’s terrifying earthquake, tsunami, and nuclear disasters have the world watching, talking, and thinking hopeful thoughts for people in that island nation. Yesterday, I listened as a seismologist talked to an NPR radio host about the magnitude of the Sendai earthquake, which has now been upgraded to a 9.0 magnitude earthquake.

The seismologist said that Japan is no stranger to earthquakes, and has put considerable effort into quake-proofing their infrastructure. But their preparations have targeted magnitude 7.0 quakes. Nobody would have predicted a quake as large as the Sendai quake happening in Japan. “It was almost 1000 times more powerful than a 7.0 magnitude quake,” he said.

This confused me.

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First picture from Earth of a spacewalk

@BadAstronomer is sharing the exciting news that someone has taken the first picture from Earth of an astronaut on a spacewalk from a Shuttle. Is this the first such picture, internationally? Or is it just the first such picture in America?

Check out the pics at the photographer's web page. They are well annotated and exciting.

Taking ground-based photographs of satellites and space vehicles is a great project for young people interested in image processing and space. In this case, the result is spectacular, but to get a photo of anything human-made (e.g., the ISS) would be exciting for young and old, alike.

The 'Ph.D. Problem'

This morning, I saw a question on Quora about the state of Ph.D. production in the U.S. "What can be done to address the problems of the current PhD system of academia?", the writer asked, pointing to the December 2010 article "The disposable academic: Why doing a PhD is often a waste of time" by Natasha Loder in the Economist.

 


There is an oversupply of PhDs. Although a doctorate is designed as training for a job in academia, the number of PhD positions is unrelated to the number of job openings. Meanwhile, business leaders complain about shortages of high-level skills, suggesting PhDs are not teaching the right things. The fiercest critics compare research doctorates to Ponzi or pyramid schemes.

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A 'convergence' model for STEM training

This morning, Insider Higher Ed reported on a meeting at MIT at which a panel discussed how recent breakthroughs in the life sciences point to a new way to think about academic organization. The called this model 'convergence', suggesting the movement from several directions (or disciplines) toward a common limit point (or achievement). Of course, this is just another way to package interdisciplinary interaction at a team-level.

It's natural to walk away from this discussion all excited about training scientists in this new approach from the start of their undergraduate career. Been there. Thought that. And I always return to the fact that excellence in interdisciplinary achievement will always be built on deep discipline-specific knowledge.

Some questions from the packed audience of academics, researchers, Capitol Hill and White House staffers, and MIT alumni centered on whether universities should start training "convergent scientists" who are versed in hybrid fields. But Keith Yamamoto, professor and executive vice dean of the University of California at San Francisco's School of Medicine, cautioned against it. Highly specialized knowledge will only grow in importance, he said. What is needed more, he argued, was a wider acceptance -- as reflected in how scientists are trained and what gets published -- of the importance of teamwork. Effective teamwork among specialists of disparate disciplines who look to new areas of knowledge would spur progress. "We need to excite people about what's going on in the boundaries," said Yamamoto.

So it's not 'interdisciplinary' scientists that we need to train, we need to inculcate in our students curiosity about what's going on at the boundary of disciplines, where only interdisciplinary teams can make progress.

The White House and Makers

"After all, we wouldn't teach kids how to play football by lecturing to them about football for years and years before allowing them to play. And if education is about the 'lighting of a flame not the filling of a pail' -- we should be putting the tools of discovery, invention and fabrication at the finger tips of every child -- inside and outside of the classroom." ( Thomas Kalil of the White House Office of Science and Technology Policy)

From an interview with Dale Dougherty of O'Reilly Media, in which Mr. Kahill talks about President Obama's support for hands-on science, mathematics, and engineering educational experiences like those provided by Truman State University. I say, let's take what we do to another level. Who's with me?