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It's possible that this is the cause of "knowing when someone is staring at you from behind". The eye muscle is the fastest reacting muscle of the whole body, contracting in less than 1/100th of a second.
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Do giraffes produce ultrasound to communitate?
Actually, Giraffes communicate using infrasonic sounds, i.e. sounds with a frequency BELOW the range of human hearing. Ultrasound would be ABOVE the human hearing range.Sources: Wikipedia
Do wolves produce ultrasound?
no
What is an Ultra-sound?
Ultrasound is sound with a frequency higher than the upper limit of human hearing. It can be directed inside an object and the reflected waves analyzed to produce an image. The most well known application of this technique is its use in sonography to produce pictures of fetuses in the human womb.
What does an Endorectal ultrasound produce?
A sonogram
Why is ultrasound useful?
ULTRASOUND produce STSTIONERY wave while pass through LIGUID
What is the opposite of the ultrasound?
The opposite of ultrasound (above the human hearing range) is infrasound (below the human hearing range).
How a human can produce ultrasound?
A laser beam pointed at the skin will produce ultrasound as a side effect by interacting with the tissues. This is how a photoacoustic tomography device works and is used for imaging tissues below the skin. "technology works on a near infrared laser that is fired into tissue. The laser's energy, once absorbed by the tissues, generates heat, which in turn generates the photoacoustic signals that are picked up by an ultrasound transducer." coool.
What sounds bat produce?
Ultrasound sound waves
Frequencies too high-pitched for the human ear to hear?
Ultrasonic Frequencies
Is amniocentesis a technique used to produce an image of the fetus?
No, ultrasound is a technique used to produce an image of the fetus.
What does ultrasound mean?
Ultrasound simply means that the sound is too high-pitched for the human ear to pick it up.
What are uses of ultrasound in day to day life?
Ultrasound are usedful in diagnosing medical problems caused to human beings.
