Chii chinonzi mita?

Zvaizoratidza sokuti chii chingava nyore pane zvakaitwa Unit, izvo munhu wose anotarisana chaizvoizvo kubva paucheche. Meter, kilogram, fő ... Zvisinei, dzimwe nguva upenyu anoisa mibvunzo itsva kunyange vasati "Chisel" izvi. Mumwe mienzaniso yakadaro - chii mita ichi. Zvechokwadi, muna chikoro geometry zvidzidzo muzvikamu chero kwakakura hadzina kuyerwa. Saka, pamwe havapo, sezvinoitawo metres achimhanya - yakaisvonaka nhema? Zvino kuti paIndaneti hunowanikwa zvose, mune dzidziso, unogona kuwana nyore mhinduro chero mubvunzo. Chinhu chikuru - zvakanaka kuzoumba nayo. Kuongorora kuburikidza achitaipa ari kutsvaka pakapuranga pamusoro Browser chikumbiro "kuti mita ndiro" Chokwadi kushamisika kuti chokwadi kuti mashoko aya pamwe musoro kicheni. Zvinorevei izvi?

mureza

Zvichida, pashure zvose, tinofanira kunyatsoongorora mubvunzo kuti mita. Zviri pachena, sezvo tiri kutaura pamusoro vezvikwata yakayerwa, kutsvaka mhinduro inofanira muFrance, muna Bureau of muzviyereso, iro rinochengeta zvose bhuku ivhu SI. Asi kana tinogona kutarisa pacho, ipapo hapana ngano Linear mita hakuna kuwanikwa. Izvi zvinoratidza kuti chipo mita runodiwa mwero urefu chete sananga ukama.

Pakutanga, mumwe-mugove gumi nguva yacho pano meridians, intersecting Paris akaiswa sokunoratidza. Zvakafanira matanho vakanga rakatangwa muna 1795, uye pashure pakatanga okugadzirisa kuwedzererwa muna 1799, inobva date mutsetse chakagadzirwa Stainless Platinum saizi. Naizvozvo, zvisinei, kururama mamita vakadaro vari kuramba kunzi kupinda mubvunzo, sezvo pezvakaita nyika iri kure akakwana idenderedzwa, asiwo dzekare geodesy kuwana vakadaro zvakarurama kusingaenzaniswi pasina Satellite arşive kwakaoma zvisingaiti. Kana panguva yepakutanga "mureza" Kururama kwake chaiva kwakakwanira ose mabasa ose nguva, mamiriro ezvinhu akanga kuchinja ose gore. Somugumisiro, muna 1960, akanga aronga kuti kushandisa somunhu mita imwe chikamu chezvinhu wavelength of mabhomba kuchinja mu krypton. Uye makore chete 23 Kwapera akagamuchira mwero dudziro yadzo ano, akasungirirwa kureba munzira chiedza danda ari Vacuum.

Chii chinonzi mita?

Izwi iri rinoshandiswa zvikuru kutengeswa yakanyikwa zvinhu. Pamusana kwaari, asingakwanisi yekudyidzana hureruke Masvomhu. Somuenzaniso, mumwe munhu anofanira kutenga 10 mativi mamita ane linoleum. The nehoro vanoshingaira zvinhu chaitwa mune mabhanzi, noupamhi chiri invariable roga womuenzaniso. Saka, kuti vawane zvinodiwa 10 sq. M 2 mamita yakafara rwakapetwa, zvakakodzera kuyera 5 chete m. Sezvo 2 M * 5 m = 10 sq. M. Heano 5 - uye mita. Nemamwe mashoko, mita akaenzana bhuku kukosha, asi tichifunga kuzombotaurazve kugara ukoshi (iyi kana upamhi).

Zvisinei, tsanangudzo iyi zvinoda kutsanangurwa, sezvo kakawanda okuti "Linear mutinhimira kicheni," hazvisi pachena nguva dzose. Pashure pezvose, nomuenzaniso, pamwe kutenga midziyo kicheni, hunonzi, inogona kukumbirwa kuti usununguke zvako kubva rwakapetwa imwe nhamba makabhati. The kuvhiringidzika zvauya kubva chokwadi kuti vapemhi kwakadaro fanicha zvigadzirwa yambotaurwa kugara tsika vanoonekwa vasina rakafara, uye mutengo zvokunyama uye basa. Kana tichiziva nomutengo meter, uye mumwe anotevedzana akasiyana chete spatial configuration (apo kuramba zvakafanana zvinhu), zvinogona nyore kushandisa pfungwa anofungidzirwa Masvomhu por mita. Buyers kuziva mari "kicheni womuenzaniso chete, asi mukuru kana muduku urefu," anogona overenga zviri nyore, kunyange zvavo.