Video narration
Lego ke alag-alag tukde judkar ek model banate hain - to padarth ka sabse chhota hissa, paramanu, asal mein bana kis se hai? Kisi cheez ko paas se zoom karein, aur mez se ek paramanu tak pahunchein. Beech mein nabhik hai - ghana kendra, jismein proton aur neutron hote hain. Iske chaaron or electron ka baadal phaila hai. Yahin tasveer badalti hai: paramanu thos gend nahin; uske bheetar zyadaatar khaali sthaan hai. To jawab hai: paramanu, proton aur neutron wale nabhik se bana hai, jiske chaaron or electron hote hain.