Unitconversion
1foot(feet)=0.00018939393939394miles(mile)=12inches(inch)=30.48centimeters(cm)=0.3048meters(meter)=0.333333333333333333yard(Code)
Origin
Feet—InEnglish-speakingcountries,variousancientandmodernlengthmeasurementunitsbasedonthelengthofthehumanfoot.Generally25-34cm.InmanyotherWesternlanguages,thefootandtherulerusedformeasurementareexpressedbythesameword,althoughthelengthitrepresentsvariesfromplacetoplaceandfromtimetotime.Forexample,fussinGerman,fodinNorwegianandDanish,etc.Inotherlanguages,itistranslatedintoEnglishasfootandrepresentsawordsimilartotheunitoflength,butitisnotthesameasthewordforhumanfeet,suchastherulerinJapaneseandChinese.ThefutinRussianseemstobejustatransliterationofEnglishfoot.Inmostcountries,feetandtheirmultiplesandfractionshavebeenreplacedbymetersinthemetricsystem.Inafewcountries,feetarestillused,butmetersarestillusedforannotation.TheUnitedStatessetfeetat30.48cmin1959.
CubitisaunitofmeasurementusedinancientEgypttoindicatethedistancefromaperson’selbowtothetipofthemiddlefinger.Qubitisreplacedbythecurrentcode,onecodeequals2qubits.
Puffisthedistancebetweenthefingertipsofthetwomiddlefingerswhenthearmsareraisedhorizontally.Thefathomisaunitformeasuringthedepthofwater,andonefathomisequalto6feet.ItisaEuropeancustomaryusage
Atthebeginningofthe13thcentury,theBritishstandardsweredisorderedandtherewasnouniformstandardacrossthecountry,whichbroughtalotoftroubletothenationaltrade.ThecivildisputesbroughtaboutbythescalehavecausedgreatdistresstotheBritishroyalfamily.Theyhaveconvenedmorethan10ministerialmeetingstodiscussthematter.Theydiscussedanddiscussedandcouldnotdetermineaunifiedstandard.John,whooncesignedtheMagnaCartaThekingangrilysteppedontheground,thenpointedtothesunkenfootprintandsolemnlyannouncedtotheministers:"Thereisafoot,letitbethemeasurefromthisdayforward.(ThisfootprintmakesitforeverThemeasurementstandard!)”TheBritishMuseumalsocontainsarectangularframemadeofalloywithaverysmallexpansioncoefficient.ThehollowpartisthestandardlengthofTheImperialFoot.BecausetheBritishkingwearsshoes,afootisaboutthirtycentimeters,andthestandardlengthis30.48centimeters.