Puas yog kho qhov tsom iav tsom iav ntsuas cov qauv molecular?
Cov qauv molecular tuaj yeem pom siv lub tshuab hluav taws xob hauv tshuab hluav taws xob, uas tam sim no muaj kev nthuav dav txog li 15 lab zaus.
Thaum xyoo 197 {0 s, kis hluav taws xob micrimeters yog li 0.1 millimeters, uas yog thawj lub xeev ntawm hluav taws xob kev loj hlob.
Xyoo 1931, tus kws tshawb fawb German tau hloov kho qhov hluav taws xob siab oscilloscope los ntawm kev sib txuas txias canode tawm txias rau hluav taws xob los thiab lub lens nrog peb lub tshuab hluav taws xob. Tom qab hloov kho, nws pom tias cov oscilloscope yuav tuaj yeem ua rau khoom siv ob peb zaug. Yog li, nws tau tsim lub chaw tsheb kis hluav taws xob hauv hluav taws xob, thiab qhov tsim muaj ntawm lub high-voltage oscilloscope paub lub hwj chim ua haujlwm ntawm lub tshuab hluav taws xob.
Thaum pib ntawm lub xyoo pua 20, Asmeskas cov kws tshawb fawb tau ua cov kev hloov tshiab hauv kev kawm txog kev daws teeb meem ntawm hluav taws xob cov qib siab. Nyob rau lub sijhawm no, hluav taws xob microscopes kuj tau ntsib kev loj hlob sai hauv Suav teb.
Tam sim no, kev tshaj tawm ntawm Electron me me tuaj yeem ncav cuag 15 lab lub sijhawm, thaum lub zog ntawm Optical tsom me me tsuas yog 2000 zaug. Qhov no kuj yog qhov sib txawv ntawm Electron tsom iav thiab kho qhov tsom iav kho qhov muag. Yog li ntawd, peb tuaj yeem ncaj qha rau cov atomic ncaj ncees hauv cov hlau thiab cov noms ntawm atoms nyob rau hauv electron tsom iav.
Qhov kev daws teeb meem ntawm electron microscopes tseem tseem zoo tshaj rau lub tsom iav ntawm qhov muag. Lub zog loj ntawm kev tawm kho qhov muag yog li 2000 zaug, thaum niaj hnub hluav taws xob microscopes muaj kev tshaj tawm ntawm ntau tshaj 3 lab zaus. Yog li ntawd, los ntawm Electron microscopes, nws muaj peev xwm tau pom ncaj qha atomic latheces thiab muaju molecular ntawm cov crystal duab ntawm molecules nrog cov kev teeb tsa sib txawv)
Tam sim no, microscopes tau pom tias tsis tuaj yeem pom cov molecules kom meej meej, tsis yog vim tias lub zog tsis txaus, tab sis vim hais tias kev daws teeb meem ntawm tsom kwm kho qhov muag. Cov cua daj cua dub tam sim no nyob ib ncig ntawm 20nm, uas txhais tau tias ob lub ntsiab lus sib cais los ntawm ntau dua 20 nanometers tuaj yeem pom meej, thaum cov qis dua 20 Nanometers tshwm sim ua ib pawg.
Molecules yog tsawg kawg ntawm nanoscale. Yog tias peb siv tshuab hluav taws xob, nws yog qhov nyuaj hais. Lub Tshaj Tawm Ntawm Electron metcopy tau ncav cuag 10000 zaug, thiab kev daws teeb meem ntawm electron metercocy yog nyob ntawm nanoscale. Nyob rau tib lub sijhawm, Kuv xav qhia koj tias kev daws teeb meem yog qhov tseem ceeb heev. Yog tias tsis tuaj yeem mus txog, muaj kev magnification zoo yog tsis muaj nuj nqis.
