Are there any foreign models of school reform the U.S. should look to?

Question: Are there any foreign models of school reform the U.S. should look to?

Joel Klein: Well there are people who face different challenges and have different things going for them certainly. And I’ve looked at work. Right now we’re doing some work on meaningful careers and technical education as a part of the kind of analysis that I think we need to do, so that not everybody is on a four year academic college track. Some people want a career in technical.

And so if you look in Northern Europe, in the Scandinavian countries, Denmark in particular has done some work on that. If you look at Korea, Finland, those are countries that are doing quite well on global tests, among other reasons, is because they attract very high quality teachers, as the research says.

Michael Barber who I mentioned is doing this work for Tony Blair, who’s now at McKinsey [& Company] has just come out with his book, and also a global analysis of the four or five things that really matter throughout the globe.

And looking for commonalities, it’s the same process of knowledge management that you talked about at the school system that we’re not trying to talk about nationally. But you can also do it globally. And we’ll create platforms where we learn from each other in that respect.

 

Recorded on: March 30, 2008

 

 

 

 

 

 

 

 

Look at the countries excelling by international standards.

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Scientists study tattooed corpses, find pigment in lymph nodes

It turns out, that tattoo ink can travel throughout your body and settle in lymph nodes.

17th August 1973: An American tattoo artist working on a client's shoulder. (Photo by F. Roy Kemp/BIPs/Getty Images)
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In the slightly macabre experiment to find out where tattoo ink travels to in the body, French and German researchers recently used synchrotron X-ray fluorescence in four "inked" human cadavers — as well as one without. The results of their 2017 study? Some of the tattoo ink apparently settled in lymph nodes.


Image from the study.

As the authors explain in the study — they hail from Ludwig Maximilian University of Munich, the European Synchrotron Radiation Facility, and the German Federal Institute for Risk Assessment — it would have been unethical to test this on live animals since those creatures would not be able to give permission to be tattooed.

Because of the prevalence of tattoos these days, the researchers wanted to find out if the ink could be harmful in some way.

"The increasing prevalence of tattoos provoked safety concerns with respect to particle distribution and effects inside the human body," they write.

It works like this: Since lymph nodes filter lymph, which is the fluid that carries white blood cells throughout the body in an effort to fight infections that are encountered, that is where some of the ink particles collect.

Image by authors of the study.

Titanium dioxide appears to be the thing that travels. It's a white tattoo ink pigment that's mixed with other colors all the time to control shades.

The study's authors will keep working on this in the meantime.

“In future experiments we will also look into the pigment and heavy metal burden of other, more distant internal organs and tissues in order to track any possible bio-distribution of tattoo ink ingredients throughout the body. The outcome of these investigations not only will be helpful in the assessment of the health risks associated with tattooing but also in the judgment of other exposures such as, e.g., the entrance of TiO2 nanoparticles present in cosmetics at the site of damaged skin."

Why are so many objects in space shaped like discs?

It's one of the most consistent patterns in the unviverse. What causes it?

Videos
  • Spinning discs are everywhere – just look at our solar system, the rings of Saturn, and all the spiral galaxies in the universe.
  • Spinning discs are the result of two things: The force of gravity and a phenomenon in physics called the conservation of angular momentum.
  • Gravity brings matter together; the closer the matter gets, the more it accelerates – much like an ice skater who spins faster and faster the closer their arms get to their body. Then, this spinning cloud collapses due to up and down and diagonal collisions that cancel each other out until the only motion they have in common is the spin – and voila: A flat disc.