The Origins of Modern Weapons

Where did all these modern weapons we have now come from? They came from ancient texts. This is Jay Robert Oppenheimer, the father of the atomic bomb. How did he learn about making this atomic bomb? It wasn't from Albert Einstein. He was quoting from the 1944 Brahavamanda. And that comes from the Mahabharata. So I believe that those are remnants of ancient weapons that even exist in our solar system.