Science and Technology Daily, February, 2065438+05 1 1: A joint team of Southampton University in the UK, Massachusetts Institute of Technology (MIT) in the United States and the Research and Technology Alliance of MIT in Singapore has developed an octopus-like robot, which can contract and advance in the water and accelerate at an ultra-fast speed, becoming an unprecedented artificial underwater vehicle.
2. Sonar
Sonar is not a patent of human science and technology. Many animals have their own sonar.
Bats emit 10-20 ultrasonic pulses per second with their throats and receive echoes with their ears. With this "active sonar", they can detect tiny insects and wire obstacles with a thickness of 0. 1 mm ... moths and other insects also have "passive sonar", which can clearly hear the ultrasonic waves of bats 40 meters away, so they often avoid attacks.
3. Electronic frog eyes
Bionic scientist Locke invented the electronic frog eye according to the principle and structure of frog eye. By combining the eyes of the electronic frog with the radar, we can see the moving things keenly, but turn a blind eye to the static things, just like the eyes of the frog, tracking the real targets in flight sensitively and quickly.
Step 4 wade
The paddle simulates the pectoral fin and ventral fin of fish by using the principle of laborious lever, and can paddle back and forth like a fish fin to make the hull move slowly.
The upper end of the paddle is a round rod which is convenient to hold by hand, and it is called a grip; At the lower end is a plate called an oar, which is used to pump water. Using Newton's third law in physics, the ship can move forward through the reaction of water waves.
5. Radar
Scientists have found that bats rely not on eyes, but on an echolocation system consisting of mouth, throat and ears. Because bat magic emits ultrasonic waves when flying, it can also detect the ultrasonic waves reflected by obstacles. Based on this, scientists have designed a modern radar-a radio positioning and ranging device.
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