Bermuda_Triangle

BermudaTriangleTrianglearea•TheBermudaTriangle(Devil'sTriangle),isaregioninthewesternpartoftheNorthAtlanticOceanwhereanumberofaircraftandsurfacevesselsdisappearedundermysteriouscircumstances.•TheboundariesofthetrianglecovertheStraitsofFlorida,theBahamas(巴哈马群岛）andtheCaribbeanislandarea.Mainarticles:Flight19•Flight19wasatrainingflightoffivetorpedobombers(鱼雷轰炸机）thatdisappearedonDecember5,1945,whileovertheAtlantic.•Oneofthesearchandrescueaircraftdeployedtolookforthem,ateamwitha13-mancrew,alsodisappeared.WreckageofaplaneConnemaraIV(康尼马拉4号）•OnSeptember26,1955,ayacht(快艇)wasfoundadriftintheAtlanticsouthofBermuda.•Itisusuallysaidthatthecrewvanished(消失）whiletheyachtsurvivedbeingatseaduringthreehurricanes.Otherincidents•StarTigerdisappearedonJanuary30,1948onaflightfromtheAzorestoBermuda;•StarArieldisappearedonJanuary17,1949,onaflightfromBermudatoKingston,Jamaica.•OnDecember28,1948,aDouglasDC-3aircraft,numberNC16002,disappearedwhileonaflightfromSanJuan,PuertoRico,toMiami.•OnAugust28,1963,apairofUSAirForceKC-135StratotankeraircraftcollidedandcrashedintotheAtlantic.•……Explanations•SupernaturalexplanationsAtlantisUFOs•NaturalexplanationsTheGulfStreamViolentWeatherMethanehydratesMagneticvariationsSupernaturalexplanationsAtlantis•Somepeoplebelievethattheatlantishasanomalous(异常的）orunexplainedforces.UFOsThisideawasusedbyStevenSpielbergforhissciencefictionfilmCloseEncountersoftheThirdKind(第三类接触）,whichfeaturesthelostFlight19aircrewsasalienabductees（被绑架者）.NaturalexplanationsTheGulfStream•TheGulfStream(墨西哥湾流)isadeepoceancurrentthatoriginatesintheGulfofMexico.•Ithasasurfacespeedofuptoabout2.5metrespersecond.Asmallplanemakingawaterlandingoraboathavingenginetroublecanbecarriedawayfromitsreportedpositionbythecurrent.False-colorimageoftheGulfStreamflowingnorththroughthewesternAtlanticOcean.(NASA)ViolentWeatherHurricanesRogueWavesMethanehydrates（可燃冰）•largefieldsofmethanehydrates(aformofnaturalgas)•methaneeruptions(sometimescalled“mudvolcanoes”)Itmayproducelargemassofbubblesthatdecreasethedensity(密度）ofthewater.Thewatercan’tprovideadequatebuoyancy(浮力）forships.Magneticvariations(磁场突变）•Compass（罗盘）problemsareoneofthecitedphrasesinmanyTriangleincidents.Magnetic(compass)northandgeographic(true)northareonlyexactlythesameinsometriangleareas.•Acompass“changing”acrossanareaaslargeastheTrianglemayhappen.NormalmagneticfieldAbnormalmagneticfield