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Biomagnetism
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Waves
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Infrasonic Waves
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Species: includes Columba livia Physics Application(s) Overview: Bioelectricity, biomagnetism, and infrasound Species distinctions: Domestic
Pigeon: Habits, physical and social structures: Pigeons, some species also known as
doves, carrier pigeons, or homing pigeons, have been known to be domestic
birds for centuries, with use in Asia and Rome as a religious symbol, for
meals, and as messengers as the birds are notorious for their Physics Application(s): Bioelectricity: Similarly to other living organisms, the pigeon requires electricity to allow its wings to function, to survive, and to reproduce, as previously explained.
Biomagnetism:
Pigeons are well known to be examples of birds who may use magnetism to
navigate: as magnetite has been discovered to exist in their brains, it is
Infrasound:
Although biomagnetism may be a method by which the birds navigate and
determine their location, it has also been discovered that pigeons are
capable of perceiving infrasound waves, which may aid them in determining
the precise location at which they may find themselves. A form of support
of this theory comes from a pigeon race which was held in 1997: pigeon
races are an international sport, where pigeons are bred and trained to be
taken from their homes to a distant location with other competitors, when
are released. The return speeds of the birds as they find their way home
are timed, where over 90% return in a few days, followed by the rest, with
a few exceptions. However, in 1997, one particular race turned into what
was considered a catastrophe for pigeon racers but something of interest
to zoology. June 29, 1997: to celebrate the centenary of the Royal Pigeon Racing Association, a race of more than sixty thousand homing pigeons began at 6:30 am from a field in Nantes, France. The birds were to fly to their lofts in southern England, 643.7 to 804.7 km (400.0 to 500.0 miles) away. The majority of birds left France and began their trek over the English channel with the expectancy that they would have arrived home by early afternoon, but when most did not return that day nor any days following, the race was labeled as a disaster. One bird would inevitably find itself lost, but what could explain the disappearance of thousands?
Another notable incident to address
occurred in 1995, when France detonated a nuclear device that affected the
rest of the world through reverberation. From the source in France, near
Paris, infrasound waves traveled at the speed of sound for a radius of
1287.4 km (800.0 miles) in the first hour. Eleven hours later, the
infrasound waves arrived in North America, and went undetected by homo
sapiens ears. However, it was observed that pigeons found in the
United States were disturbed by the waves, which they could detect very
well with their ability to hear infrasonic sound waves. In essence,
although
Anemaw [Animal Electromagnetism and Waves] © Elizabeth Gerrow 2002 . |
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