Ndiyikomityi, intloko yam incinci, i-twist open kukusela umlomo wamanzi, umzimba wam utyebile ngeempahla ezimibalabala.Ndimhle kakhulu!Kwaye iimpahla Zam zenziweyenziwe ngentsimbi eshayinayo.
Siziimfuno zobomi bale mihla, phantse wonke umntu unazo.Kwaye thina ngenxa yeempawu zokugquma kwe-thermal, sithandwa kakhulu ngabantu.Ukubilisa amanzi kwikomityi eqhelekileyo, emva kwexesha elithile ukusuka kushushu ukuya kuphola, olu hlobo lokuqhuba ubushushu ngumthetho wendalo, kodwa ikomityi ye-thermos inokwenza amanzi ekomityini emva kwexesha elithile ingakwazi ukugcina ubushushu obufanayo. yoqobo, ngoko ke abantu bathanda olu hloboindebe ye-thermos.
“Vacuum indebe“, abantu abaninzi basisebenzisela ukusela amanzi yonke imihla.Kodwa ngaba uyazi ukuba kutheni amanzi ashushu kwikomityi engapholi emva kweeyure ezimbalwa?Ngaba uyazi ukuba umgaqo wethu unento yokwenza ne-vacuum?
Ngowe-1892, ingcali yefiziksi yaseScotland kunye nekhemisti uJames Dewar wayila iikomityi yokufunxa.Umsebenzi wobomi bonke bukaDewar wawuphambili kufundo lwecryogenics.Ukuze afunde ngokunyibilika kwerhasi, wayedinga isikhongozeli esine-insulation efanelekileyo ye-thermal.Ngelo xesha, i-thermal insulation effect ye-container yayingekho kakuhle, kwaye ubushushu kwakulula ukulahlekelwa.Ngoko uDewar wacinga ngevacuum engenako ukufudumeza ubushushu.Umoya wakhe wokuphonononga kunye nokusungula izinto ezintsha wenze ukuba ubugcisa bakhe buphumelele.Isikhongozeli sathiywa igama elithi "Dewar" kwaye kamva saba yi-ikomityi yokufunxasisebenzisa ngoku.
Ngeminyaka yee-1950, ukuthengiswa kweemagi zevacuum kwafikelela incopho yazo ngenxa yemfuno yabantu.Ngeli xesha, iikomityi ze-vacuum zaqhutyelwa kwiipikiniki zentsapho, uhambo lolwandle kunye nenkampu yasendle.Kamva, izinto zeikomityi yokufunxayaphuculwa ngokuqhubekayo,yenziwe ngentsimbi eshayinayokunye neekeramics zaba zizixhobo eziphambili zetanki yangaphakathi kunye negobolondo.Isakhono sokwahlula umoya siyaphuculwa, nto leyo eyenza ukuba isiphumo sokugcina ubushushu sibe ngcono kwaye sibengcono.
Ixesha lokuposa: Aug-05-2020