Ama-thermometer ezindlini zethu aphezulu kakhulu, kodwa ngisho nangemva kokubonakala kwekhishini elisha elisha, alihambanga emashalofini akude. Njengomthetho, i-thermos enkulu ithengwa ukusetshenziswa kwekhaya ngokuziqhenya futhi kuvame ukuthengwa ngemindeni enezingane.
I-Thermos enezimnandi nezici zayo
Ngakho-ke, sizinikele umsebenzi wokuthenga i-thermos ( ngokudla noma iziphuzo) emndenini, ngakho-ke sizokhetha imodeli efanelekayo. Intengo izokwakhiwa kuye ngomkhiqizi, "ukugcwaliswa" futhi nakanjani ivolumu.
Inketho ejwayelekile kunazo zonke i-thermos yaseShayina ehloniphekile. Kusuka kusigaba "eshibhile futhi sithukuthele". Emakethe noma esitolo, u-Stenson uye wahlala iminyaka eminingi futhi uphawu lwekampani luyabonakala ngempela. Uveza izinhlobo ezifanayo ze-thermos nge-bulb yeglasi kanye nepom eklanyelwe ukugcina isiphuzo sishisa noma sibanda. I-Glass igcina ukushisa cishe ezingeni elifanayo njengensimbi engagqwali. Kukhona i-thermos yamaShayina enomusa futhi enye inzuzo, ngaphezu kwezindleko ezingabizi. Lokhu kubhekisela kalula ekunakekeleni: ngemuva kwetiye, amabala namacici amnyama azohlala edingekile, futhi kulula kakhulu ukuwageza egilasini kunokuba usuke ovela ensimbi.
Kodwa kuyacaca ukuthi i-thermos ene-bulb ingilazi kanye nokuziqhenya ngesikhathi sokuwa iyoyala impilo ende, ngakho-ke, ngokuxhaphazwa okuqhubekayo nokusebenzayo, abaningi bakhetha ukugcwaliswa kwensimbi. Amanothi anjalo anikezwa amaShayina, okuyi-Zojirushi. Futhi izinga elifanele kakhulu ngezinga elingabizi. Kulo modeli, ivolumu ingama-3 amalitha, okwanele kakhulu emndenini wabantu ababili noma abathathu.
Uma udinga i-thermos ephakeme kakhulu ngepompo engekho yamanje uma iphendukile, futhi awujwayele ukuthembela kumafemu "asempumalanga", ungathola ukuqina okufanelekile kakhulu. Ngokwesibonelo, iRussia ikhiqiza i-thermos Geyser enhle kakhulu engasinda ekulahlekelweni ngaphandle kokulahleka. Cishe zonke izinhlobo ze-thermos ezinepom zizohlinzeka ingxenye yesiphuzo somyalelo we-100 ml, futhi ukuklama kwesikhubhu kuvumela ukuwuthululela ngaphandle kokushayela.