Ubani isazi sesayensi enkulu kunazo zonke ezake zaba khona?
Kuye kwaba khona ososayensi abaningi abavelele eminyakeni edlule, futhi nakuba kungenakwenzeka ukusho ngokuqiniseka ukuthi ubani 'owayemkhulu kunabo bonke,' u-Isaac Newton no-Albert Einstein bangabancintisana kakhulu nalesi sihloko.  U-Isaac Newton (1642-1746) wayengusosayensi waseNgilandi nesazi sezibalo esidume kakhulu ngokuqamba i-calculus, i-classical mechanics. Imithetho yakhe emithathu yemishini yasendulo yabikezela ngokuphumelelayo ukuziphatha kwezinto eziqinile kuzo zonke izilinganiso ezingabonakala - kusukela ekuhambeni kwamaplanethi kuya ekuweni kwama-apula. Iminyaka engaphezu kwengu - 250 imithetho yakhe yayisetshenziswa ngokunemba okukhulu nangokwengeziwe, ihlale inikeza izimpendulo ezifanele.  Nokho, ngasekupheleni kwawo-1800, izazi ze-physics zazama kanzima ukuvumelanisa izilinganiso zejubane lokukhanya nemithetho kaNewton. Lokhu kungenye yezinto ezaphawula okwaholela ku-Einstein Special Theory of Relativity.  U-Albert Einstein (1879-1955) wayengusosayensi waseJalimane owaguqula indlela esiqonda ngayo isikhala, isikhathi nendaba ngemibono yakhe yokuhlobana nemishini ye-quantum. Imibono yakhe ephathelene nokulinganisela okukhethekile nokwejwayelekile yashintsha indlela esiqonda ngayo isikhathi nendawo futhi yachaza ngokuphumelelayo ukunyakaza kokukhanya nokuziphatha kwamandla adonsela phansi. Imibono yakhe nge-quantum mechanics nayo yaguqula indlela esiqonda ngayo izwe elingaphansi kwe-athomu.  Ngaphezu kukaNewton no-Einstein, kunabanye ososayensi abaningi abathola izinto ezintsha, kuhlanganise noGalileo Galilei, uJames Clerk Maxwell, uMarie Curie, uNeils Bohr, uRichard Feynman, noStephen Hawking.