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Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.
Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.
Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.
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Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.
Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.
Pengyi is China ’s leading manufacturer of sports goods, has been specializing in swimming, diving and skiing products manufacturing and export.

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The honeybee robot developed by Harvard university can swim: it weighs only 175 milligrams

Date: 2017-11-02
Views: 39


A new type of robot, the bee, can fly, dive, swim, and breaking the surface, and it 's small and cute, media said.
The robot bee is an air-water amphibious robot weighing just 175 milligrams, the us interest science website reported on Oct. 30. The robot was first reported in 2014 in the bimonthly issue of biological inspiration and bionics. Robot experts at Harvard university at the time after 12 years of efforts to finally develop a micro-device capable of vibrating wings. Since then, they 've been adding features. Now they make a swimming and flying robot.
" this is the first micro robot to move around in a complex environment," said Chen Yufeng, who helped write a paper on the new technology while studying at Harvard university. We have designed a new mechanical device that allows for a direct air-water transition. ""
The difficulty in completing this transition is linked to differences in the viscosity of water and air, the report said. Machine bees must be able to change the frequency of their wings so that they can vibrate much faster in the air than in water. If their wings vibrate in the water as fast as they need to fly, they break because the water is more viscous. The size of the wings must also be suitable for both media.
The researchers eventually developed a robotic bee that can convert its wing frequency from 300 Hz in the air to about 13 Hz in the water.
The machine bees must also be able to come out of the water. This is tricky because the surface tension of water — the force that keeps water molecules close to each other — can easily block a honeybee robot with only one needle. In order to provide the power to break through the water, the researchers added four outboard buoys to it, allowing the robot to float on the surface. They also equipped the honeybee robot with a central electrolytic plate that converts water into hydrogen and oxygen. Hydrogen and oxygen serve as fuel to propel the robot from the water to the nearest land.
" by modifying the design of the aircraft, we can now make it more than three times the payload of previous versions. " researh material - 11 peak said.

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