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Bats hunt by echolocation. The best condition for an echo is a hard surface. Some materials absorb sound. Curved surfaces are used to reflect sound over a large area.
2m 21s |
a year ago
HowStuffWorks
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Animal echolocation
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hsw
The Doppler effect is seen in the sound of a siren. As the siren‘s sound approaches, the waves are pushed closer together, causing a higher-pitched sound. When the siren is moving away, the waves ...
1m 34s |
a year ago
HowStuffWorks
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The Doppler Effect (music artist)
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...rarefaction....ultrasonic pulses that bounce off objects in its environment. How long it takes for the sound to be reflected back to the bat indicates how close (or far) a given object might be, ...
3 years ago
American Institute of Physics
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25122
...echolocation or seeing with your ears. This was a class project for "Dynamic user-centered research and design" in the Arts, Media & Engineering program at Arizona State University. For more ...
0m 29s |
a year ago
YouTube
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Animal echolocation
sattygalle (YouTube)
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149
Mechanical Measurements&Metrology
57m 24s |
a year ago
YouTube
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Metrology
nptelhrd (YouTube)
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Bats hunt by echolocation. The best condition for an echo is a hard surface. Some materials absorb sound. Curved surfaces are used to reflect sound over a large area.
a year ago
HowStuffWorks
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Rarefaction
Doppler effect
Reverberation
Reflection (physics)
Animal echolocation
Medical ultrasonography
Human echolocation
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