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a hat tip to Sean
05:44 in just cool, Science | Permalink
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Some of the science behind the mirror for the mathematically inclined (pdf), but must be purchased.
And for those of us who like math and don't have a lot of money, a University of Pennsylvania pdf version.
My guess is that Dr. R. Andres Hicks was a graduate student and post doc under Professor Ruzena Bajcsy, a very cordial and talented lady who once gave me a tour of her GRASP laboratory at the University of Pennsylvania. I had the distinct pleasure of giving a seminar on the application of spatial algebra to robotics to her group and invited faculty and students. At that time GRASP was performing research on coordinated task performance of multiple robots, and part of my presentation described a procedure for computing the effective inertia of constrained objects, which is important to a bunch of robots working together (or not,) attempting to carry and place a heavy, 50-foot pipe, for example.
June 08, 2012 at 08:22
Most drivers don't know how to adjust their side-view mirrors properly, thinking that they should be able to see the side of their car. This creates a blind spot to the side where cars can't be seen either by the mirror or in the driver's peripheral vision. Side mirrors should be adjusted so that as a car leaves the view of the rear-view mirror, it just starts to enter the field of view of the side mirror. Then, as the car leaves the view of the side mirror, it will start to enter the driver's peripheral vision without having to turn one's head. You can do this while driving and watching cars pass you on the left. When the side-view mirror is properly adjusted it will be directed well away from the side of the car and looking more to the side.
This concludes our lecture.
Jeff Geertsen |
June 09, 2012 at 13:26
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