Enriched Uranium

Iran has been in the news quite a lot lately. Depending on which news organization is scaring you at that particular point in time, they are anywhere from a few months to a few weeks from having enough enriched uranium to make a nuclear weapon. https://www.reuters.com/world/middle-east/iran-can-make-fissile-material-bomb-in-about-12-days-us-official-2023-02-28/ So, what exactly is enriched uranium and why is…