The science and engineering of the atomic weapons is interesting. In this video, I tried to explain working of the ‘FAT MAN’, The second atomic weapon exploded over NAGASAKI, JAPAN. First we will go through the basic science of nuclear fission and then we will explore all other important components of the bomb. finally, some visuals of the day of bombing. I hope you will find it interesting and informative. if so, please do subscribe and like the video, also, don’t forget to mention your views in the comment section.