Monday 9 June 2014
Frac/Dec/% Year 6 Part Unknown Problems Presentation
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Echolocation Writing
What is ECHOLOCATION? Echolocation is the transmission of sound waves to locate objects. Whales, among other sea animals, use echolocation in order to see through the sometimes murky depths of the deep ocean. Bats also use echolocation for food or from far far away places.
In some bats the sounds are made and sent out by their noses but, most send different sounds through their mouth. The sounds bounce off objects and prey in their surroundings like insects or branches, and are picked up by the bat's sensitive ears. Although bats have good eyesight, they depend on the echolocation system to navigate as well as capture their food. Bats give off pulses at very high frequencies that are not audible to humans, at an impressive rate of 200 pulses per second.
Marine mammals also use echolocation as a means of sight. Thought to be an "Auditory Imaging System" by different species of mammals, echolocation involves the vocalizations by the echo-locating mammal which detects the echoes of sounds and uses them to produce 3-Dimensional information.
Sunday 8 June 2014
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