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The Bermuda Triangle is an area near Bermuda where many ships, planes and people are said to have have mysteriously disappeared, with no trace of them ever being found. Over the years, a mythology has built up around these events, which have been attributed to almost every pseudoscientific phenomena imaginable. In most cases, the Devil’s Triangle is synonymous with the Bermuda Triangle. Some commentators use this moniker to refer to a similar area in the Pacific Ocean near Japan, but the latter area is more commonly known as the "Devil's Sea."
 Mysterious occurrences
The mysterious nature of the Bermuda Triangle, if it exists, manifests itself as an unusually high rate of disappearances of aircraft and marine vessels in the area. Among the more highly publicized events are:
- A pair of Avro Tudor IV passenger aircraft; the Star Tiger was lost on January 30, 1948, the Star Ariel was lost on January 17, 1949
- The disappearance of the SS Marine Sulphur Queen on February 4, 1963
- The paranormal experience of airplane pilot Chuck Wakely in 1964
- The disappearance of expert yachtsman Donald Crowhurst on June 29, 1969
Occasionally the Mary Celeste is lumped in with other Bermuda Triangle mysteries, even though its crew disappeared when it was on the other side of the ocean.
 Flight 19
The most famous event associated with the Bermuda Triangle was the ill-fated “Flight 19”, a training mission of US Navy bombers on December 5, 1945. The planes and their 14 crewmen never returned, and no wreckage has ever been located.
It is believed that the commander of the flight misidentified a group of islands, causing him to erroneously believe that he was over the Florida Keys, rather than well out into the Atlantic Ocean. Compounding this error, he assumed that the aircraft instrumentation was faulty, and continued heading out to sea. As the planes continued to stray, radio contact was eventually lost, and the planes likely ran out of fuel. The weather also turned bad, and darkness fell.
In the following days, one of the search planes suffered a fatal fuel-tank explosion en route to the search area.
The Navy originally reported that the squadron was lost due to pilot error, but following protests from the commander’s family, this was changed to “causes unknown”. The secondary tragedy of the search plane was reported as if “it too never returned”, creating a sense of profound mystery where there was none.
As early as 1950, people began to notice an unusually high frequency of tragedy in the area of the Bermuda Triangle. In 1952, George X Sands wrote an article in Fate magazine about the phenomenon. In 1964, Vincent Gaddis wrote an article in Argosy which attached paranormal causes to the disappearances. In 1969, the book Limbo of the Lost by John Wallace Spencer led to a documentary The Devil’s Triangle.
In 1974, Charles Berlitz published The Bermuda Triangle, which recounted the long history of shipping losses in the area, and examined particularly the events of Flight 19. While the essential details were correct, Berlitz dramatized the disappearance significantly.
The Bermuda Triangle became a bestseller, and many people began to speculate on the reason for the high frequency of mysterious disappearances. Speculations in the popular media have included extraterrestrial alien abductions, space-time anomalies, advanced civilizations from Atlantis, and other supernatural causes.
 Is it even true?
Before attempting to explain the high levels of disappearances in the Bermuda Triangle, it is necessary to ascertain whether there really is such a thing. This area is one of the busiest shipping areas in the world, so a correspondingly higher level of typical ship disappearances would be expected. The Southeast coast of the US is also prone to violent storms, suggesting that a more frequent occurrence of non-supernatural disappearances would be expected.
It should be noted that one could arbitrarily pick any three points in the ocean roughly the same distance apart as those making up the Bermuda Triangle and, assuming sufficient traffic, discover a similar number of unexplainable sinkings.
It turns out that the Bermuda Triangle is no more dangerous than other similarly storm-prone areas. Heavier traffic in the area corresponds to a higher number of disappearances. Moreover, insurance rates for shipping and travel within the Bermuda Triangle are no higher than anywhere else.
Airplane crashes are, almost by definition, extraordinary events, and thus always occur as a result of an improbable sequence of events. Nevertheless, the official explanation for the disappearance of Flight 19 is both plausible and consistent with the facts: a group of flight students got lost, ran out of fuel, and crashed at night in an unknown location.
Disappearances of ships at sea are, of course, mysterious, but not unexplainable: the ocean is a dangerous and unpredictable place. The sea obscures or swallows up all evidence. We are not used to large objects disappearing, but the sea is obviously more than capable of making any large object vanish entirely.
Librarian Lawrence Kusche conducted independent research into many of the incidents associated with the Bermuda Triangle. His work was published in the book The Bermuda Triangle Mystery: Solved. He found that the most highly publicized cases were often full of sloppy and incomplete research - Kusche preferred, where possible, to use original sources for each incident. He noted inconsistencies between the stories of popular writers and the testimony of witnesses. He also pointed out that descriptions of clement sailing weather did not agree with official weather records of stormy weather, and that reports of mysteriously missing craft were publicized, but reports of their return or other resolution were not. Kusche concluded: "The Legend of the Bermuda Triangle is a manufactured mystery... perpetuated by writers who either purposely or unknowingly made use of misconceptions, faulty reasoning, and sensationalism." (Epilogue, p. 277).
The BBC TV Horizon documentary about the Bermuda Triangle, first aired in 1976 and reedited for PBS as the NOVA episode "The Case of the Bermuda Triangle" (original air date 1976-06-27), featured a broad variety of opinion on the subject, but concluded "When we've gone back to the original sources or the people involved, the mystery evaporates. Science does not have to answer questions about the Triangle because those questions are not valid in the first place... Ships and planes behave in the Triangle the same way they behave everywhere else in the world."
In the NOVA version, David Kusche pointed out a common problem with many of the Bermuda Triangle stories and theories: "Say I claim that a parrot has been kidnapped to teach aliens human language and I challenge you to prove that is not true. You can even use Einstein's Theory of Relativity if you like. There is simply no way to prove such a claim untrue. The burden of proof should be on the people who make these statements, to show where they got their information from, to see if their conclusions and interpretations are valid, and if they have left anything out."
 Reality is weirder than fiction
Aside from supposed supernatural effects, the Bermuda Triangle is not without fascinating and dangerous anomalies and phenomena.
There is known to be a large deposit of methane clathrates (water ice containing interstitial methane) on the sea floor in the region of the Bermuda Triangle. Sudden melting of large deposits are known to occur. These could conceivably release enough methane into the water, that upon reaching the surface, the density of the water would be suddenly decreased. This could conceivably then, cause a large ship to sink suddenly without warning.
Portions of the Bermuda Triangle are known for the Sargasso Sea, a profusion of seaweed that once made passage by ship difficult or impossible. Bioluminescent bacteria surrounding this seaweed can produce an eerie glow at night.
So-called Freak Waves have been proposed as a possible cause of the mysterious sinking of ships in calm water. It is believed that unusually large waves may suddenly appear, caused by the focused coincidence of smaller waves. The phenomenon is poorly understood, and seems to occur with a greater frequency than current theories explain.
It has been proposed that the South Atlantic Anomaly (a point of increased electromagnetic activity caused by a weak spot in the Earth’s magnetic field) could cause compass problems and other instrumentation failure on ships and airplanes. However, this area is quite far from the Bermuda Triangle.
 Other "Triangles"
National publicity in the 1970s about the Bermuda Triangle spurred a copycat "mysterious triangle" in southeastern Massachusetts called the Bridgewater Triangle. A "Michigan Triangle" has also been proposed, located in Lake Michigan.
- ↑ The Un-mystery of the Bermuda Triangle
- ↑ Could methane bubbles sink ships? NBC News
- ↑ Granted, this seems like an improbable coincidence (a sufficiently large clathrate deposit letting go at just the "right" time to sink a ship above); but at least it doesn't invoke anything supernatural.
- ↑ What is the South Atlantic Anomaly?