Experiments on Flying
نویسندگان
چکیده
منابع مشابه
Flying Fast and Low Among Obstacles: Methodology and Experiments
Safe autonomous flight is essential for widespread acceptance of aircraft that must fly close to the ground. We have developed a methodology of collision avoidance that can be used in three dimensions in much the same way as autonomous ground vehicles that navigate over unexplored terrain. Safe navigation is accomplished by a combination of online environmental sensing, path planning and collis...
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Honeybee, a small -although powerful- creature moves from one place to another to make an elixir, which cures different diseases. To make one kilogram of honey the small creature has to carry 150000 pieces of pollen and suck the sap of ten million flowers. Both honey and the honeybee poison have been used in treating diseases for thousands of years. The product made by such tiny creatures has b...
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Introduction The fluid-mosaic model of the plasma membrane, proposed by Singer and Nicolson in the early 1970s (Singer & Nicolson, 1972), has provided a powerful driving force for understanding the structure of the cell membrane. Studies of the temporal and spatial architecture of the plasma membrane have indicated that it consists of compartments, which are probably maintained through their in...
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The authors studied the effects of marijuana intoxication on the ability of 10 certified airplane pilots to operate a flight simulator. They used a randomized double-blind crossover design to compare the effect of active versus placebo marijuana. They found that all 10 pilots showed a significant decrease in measurements of flying performance 30 minutes after smoking active marijuana. For a gro...
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ژورنال
عنوان ژورنال: Nature
سال: 1893
ISSN: 0028-0836,1476-4687
DOI: 10.1038/049157a0