Hourglass

Hourglass - wayila eyaguqula isimo sengqondo somntu ngelo xesha. Imbali asisiniki impendulo ecacileyo malunga ngemvelaphi yabo, nakuba kunjalo, oko kuthathwa ukuba sixhobo eyaziwa yamandulo Asia BC.

Le yindlela elula kodwa mobile kakhulu yokulinganisa ixesha - ke ngokukhawuleza alaqhenqetha kumaXesha Aphakathi aze abe Ukongeza enkulu kwi-ngelo xesha, sika.

Elinediski wavumela ukulinganisa ixesha ngexesha ngongcwalazi yaye ngeclepsydra achaneke nangakumbi. A indawo ekhethekileyo nekuhlala belindile iinqanawa ukususela ewa nto yaba nefuthe elikhulu enjalo phezu ugalele entlabathini, ngokungafaniyo iwashi amanzi. Ngokuyintloko yonke Isantya inqanawa kugqitywe - kwaye enokulahlwa intambo emanzini kunye amaqhina kwaye ikloko okwesibini-30 kulinganiswa. Ngelo xesha inverting oomatiloshe iwotshi yehlisa intambo yomzi emanzini iqala ukubala, ngokufuthi ukuya ngaphandle kwebala, "iindawo" - yoko kwabakho ngesantya amaqhina. Kwakhona, iinqanawa kusetyenziswa hourglass ezine iyure, esebenzisa ukuba qondile ixesha derzhurstva ukubukela iqela elinye.

Eyona ethile ezingundoqo ezifana hourglass buninzi encinane yayifumaneka ukulinganisa ixesha lekhefu. Ngoko ke, yaba umboniselo kakhulu ethandwa, ukulinganisa iyure okanye ezimbini, ngamanye amaxesha iiyure ezintathu. Kwimveliso kwakhona basebenzisa iwotshi nogesi ezisibhozo okanye ngentsimbi yeshumi elinesibini - ixesha ngosuku lokusebenza.

Ukuchaneka ikloko enjalo ixhomekeke ubukhulu becala umgangatho entlabathini. Ezisetyenziswa nesanti ukuba ukwenziwa yeglasi - annealed, umdliwo wayigocagoca ngesihlungulo entle. Kunokuba zesanti nazo zinokusetyenziswa namaqokobhe iqokobhe luyacolwa ya okanye nezemarmore yodonga. Kwakhona Ukuchaneka hourglass kuxhomekeka kumgangatho kumphezulu yeglasi ezisetyenziswayo, kodwa ngokuhamba kwexesha, ngenxa lingonakali iglasi isanti umphezulu engaphakathi, ukuchana ikloko enjalo iyawa.

In-18 - 19, kunye ukuvela mveliso kunye mveliso, nto leyo kwimveliso atshiphu, esetyenziswa ngokubanzi, kanye eninzi kunye enkulu iiwotshi koomatshini newotshi alarm. Ngenxa yoko - hourglass saqhutywa ngaphandle ukusetyenziswa ngemihla, kodwa nangona ukuba nanamhlanje ukuba kakhulu esetyenziswa kwishishini, amayeza kunye nezinye iindawo ezininzi.