Posts Tagged ‘YouTube’

Free MIT education still not for everyone

Tuesday, September 1st, 2009

Popular Science writer Josh Dean finds out what happens when you try to get an MIT education using the legal five-finger discount. Dean “took” a class taught by MIT physics professor Walter Lewin, who, incidentally, has developed a following via OpenCourseWare. In the video above, Lewin swings from a wire to demonstrate a pendulum. Dean learns, if nothing else, free isn’t the same as easy:

I stuck with it, for a while. In a week, I watched three of Lewin’s 50-minute lectures and understood almost none of them. The stunts for which he’s become famous are undeniably entertaining — I think it’s fair to call this prop-wielding genius the Gallagher of science — but at the end of each hour I’d look down at my scrawls and realize they were useless to me. They looked like hieroglyphics.

I got that long-dormant lost-in-class feeling that triggers notebook doodles and clock watching, and I started to dread “going.” And so, in a departure lounge at Miami International Airport, around the time Lewin said, “We now come to a much more difficult part, and that is multiplication of vectors,” I decided to drop the class.

The school puts its materials on its OpenCourseware site and collects its video lectures on its YouTube channel.

Raytheon sells 1st ‘pain ray,’ but not to the military

Thursday, August 6th, 2009

Wired.com’s Danger Room reports Raytheon has sold its first Active Denial System, the “pain ray” which uses microwaves to push back approaching enemies. Weirdly enough, the defense giant isn’t selling the ray gun to the military, which begs the question: Can anyone buy one of these things?

“Paradoxically, it seems that the controversial ‘pain beam’ may be more acceptable in the civilian market than in the military — depending on how the weapon is used.Certainly, few people would object to the Active Denial System being used for zapping off pirates. The Long Range Acoustic Device, which produces an intense beam of sound, was used to fend off pirates attacking the cruise ship Seabourn Spirit in 2005. But it might be received differently if it was used in a prison or to repel intruders (or protesters) from company property.

In the longer run, Raytheon believe that Active Denial might have all sorts of applications in law enforcement, prisons and protecting installations – not to mention chasing geese away from airports. One day a domestic version might even repel burglars.”

Raytheon is developing a smaller version of the ADS, so we should have a whole new sub-genre of YouTube video to look forward to if these things ever shrink to the size of tasers. 

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