Video narration
Lego ke tukde kram se judkar poori cheez bante hain - to car ke alag-alag hisse milkar chalne layak kaise bante hain? Engineer pehle car ka design tay karte hain. Usi samay, kai purze alag karkhanon aur suppliers mein bante hain, aur kuch kaam saath-saath chalta hai. Car ek hi jagah, ek baar mein nahin banti: hisse alag taiyar hote hain, phir kai charanon mein judte hain. Dhaatu ki chadaron ko aakar dekar dhaancha banaya jata hai, joda jata hai aur rang kiya jata hai. Phir jodne ke dauran engine ya motor, bijli ke taar, seaten aur doosre zaroori purze apni jagah lagte jate hain. Har charan mein alag hisse car ke poore roop ke kareeb aate hain, lekin use chalne yogya saabit karna baaki hai. Aakhir mein, car ki jaanch hoti hai; uske kaamkaaj ko parakhte hain aur use chala kar dekhte hain. To car pehle design hoti hai, phir hisson se bankar charanon mein judti hai, aur jaanch ke baad factory chhodti hai.