The first thing most obvious connection between the sea animals with the concepts of physics is the ability to swim very well which is owned by marine animals. Body shape of fishes is designed so that they can swim quickly and easily. Slender shape (so-called streamlined) became so popular and much imitated by humans in a variety of technological creations, such as a submarine design.
Dolphins and blue whales are very sensitive to sound and able to produce and detect sound at a frequency ten times greater than the frequency of audible sound man (ultrasonic frequency). This capability is used to navigate in the dark sea world (echolocation), catch prey, and communicate with the herd (even blue whales are able to use infrasonic waves that have very low frequency to communicate with each other). Dolphins emit high-frequency sound waves that reflected to the body of its prey. This reflected wave is received back by the dolphins and processed as information about the location, distance, speed, direction, and size of prey. The dolphins could even see the prey image. Sonar systems can even penetrate the body's prey so it can see the picture frame of bone and heard his heartbeat. This is similar to an ultrasound system used in the medical world to see and hear the fetal heartbeat humans. Thus, the dolphin can see a fetus that was conceived without X-ray and ultrasound equipment used by humans!
Marine animal even smaller sizes were able to spend very large electricity. One of them is the electric eel that can emit an electric shock that can kill a horse. Who would have thought that such a small animal can kill another animal that have size in tens of times greater?
It turned out that the sea animals that looked calm and not dangerous can’t be underestimated his ability. All that can happen because of physics. Every day the sea animals continue to show attractions like a parade of physics at the beautiful sea world. Humans have used and will continue to learn from life under the sea that is fascinating.
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