Thaum twg Ogallala Nebraska nrhiav tau?

Thaum twg JJ Thomson nrhiav tau lub isotope?

Nyob rau xyoo 1856 - 1940. J. J. Thomson coj kev tshawb fawb mus rau qhov siab tshiab nrog nws xyoo 1897 nrhiav pom ntawm cov hluav taws xob - thawj subatomic particle. Nws kuj pom thawj cov pov thawj tias cov khoom ruaj khov tuaj yeem muaj nyob hauv isotopes thiab tau tsim ib qho ntawm cov cuab yeej muaj zog tshaj plaws hauv kev tshuaj ntsuam chemistry - qhov loj spectrometer

Thaum twg Griffith nrhiav tau?

1928 Hais txog qhov no, thaum twg Frederick Griffith nrhiav DNA? Xyoo 1928, British bacteriologist Frederick Griffith tau ua ntau qhov kev sim siv cov kab mob Streptococcus pneumoniae thiab nas. Griffith tsis yog sim txheeb xyuas cov khoom siv caj ces, tab sis, theej, sim tsim cov tshuaj tiv thaiv kab mob ntsws.

Thaum twg Gregor Mendel nrhiav tau cov hauv paus ntsiab lus ntawm kev sib hloov?

Mendel lub hauv paus ntsiab lus ntawm kev tsim noob neej. Lus Txhais: Ob lub hauv paus ntsiab lus ntawm kev yug me nyuam tau tsim los ntawm Gregor Mendel hauv xyoo 1866, raws li nws cov kev soj ntsuam ntawm cov yam ntxwv ntawm cov txiv laum huab xeeb los ntawm ib tiam mus rau lwm tiam. Cov hauv paus ntsiab lus tau hloov kho me ntsis los ntawm kev tshawb nrhiav caj ces tom ntej

Henri Becquerel nrhiav tau dab tsi uas ua rau nws tau txais 1903 Nobel nqi zog Nws nrhiav tau dab tsi txog lub caij uranium?

Teb: Henri Becquerel tau txais ib nrab ntawm qhov khoom plig rau nws qhov kev tshawb pom ntawm cov hluav taws xob tsis zoo. Teb: Marie Curie tau kawm txog cov hluav taws xob ntawm tag nrho cov tebchaw uas muaj cov xov tooj cua paub, suav nrog uranium thiab thorium, uas nws tom qab pom kuj tseem muaj xov tooj cua

Thaum twg lub vacuole nrhiav tau?

Antonie van Leeuwenhoek, inventor ntawm lub microscope, nrhiav vacuoles nyob rau hauv 1676. Thawj cov ntsiab lus rau nws lub tshuab tsom iav yog cov kab mob thiab nws yog tus discoverer tsis yog ntawm vacuoles xwb tab sis ntawm ntau lwm yam cellular qauv