Keeb Kwm Ntawm Kev Kho Mob Liab - Kev Siv Lub Teeb ntawm Cov Neeg Iyiv, Greek thiab Roman

68 Saib

Txij thaum chiv keeb los, cov khoom siv kho mob ntawm lub teeb tau raug lees paub thiab siv rau kev kho mob. Cov neeg Iyiv thaum ub tau tsim cov chaw solariums uas muaj iav xim los siv cov xim tshwj xeeb ntawm cov spectrum pom kev los kho cov kab mob. Nws yog cov neeg Iyiv uas thawj zaug paub tias yog tias koj pleev xim iav nws yuav lim tawm tag nrho lwm qhov wavelengths ntawm cov spectrum pom kev ntawm lub teeb thiab muab rau koj ib daim ntawv ntshiab ntawm lub teeb liab, uas yogKev tawg ntawm 600-700 nanometer wavelength.Cov neeg Greek thiab Loos thaum ub siv lub teeb los ua lub zog thermal.

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Xyoo 1903, Neils Ryberg Finsen tau txais txiaj ntsig Nobel hauv kev kho mob rau kev siv lub teeb ultraviolet los kho cov neeg mob Tuberculosis. Niaj hnub no Finsen tau lees paub tias yog leej txiv ntawmkev kho mob niaj hnub no.

Kuv xav qhia koj ib daim ntawv qhia uas kuv pom. Nws yog los ntawm xyoo 1900s thaum ntxov thiab ntawm sab xub ntiag nws nyeem tias 'Txaus siab rau lub hnub hauv tsev nrog lub hnub hauv tsev.' Nws yog ib yam khoom ua los ntawm Askiv hu ua Vi-Tan ultraviolet home unit thiab nws yog lub thawv da dej ultraviolet incandescent light. Nws muaj lub teeb incandescent, lub teeb mercury vapor, uas tso tawm lub teeb hauv ultraviolet spectrum, uas yuav muab vitamin D.

Sau ib qho lus teb