What would happen if a nuclear bomb went off in a major city

The world is living under the threat of nuclear war and a terrifying simulation reveals what would happen if a nuclear bomb went off in a major city. As well as looking at the destruction, scientists used the computer model to work out how people would behave if the worst-case scenario struck. An entire city block was obliterated instantly and buildings blasted for a mile in almost every direction. Researchers found people who did nothing were most likely to die with nearly 280,000 people killed in just 48 hours. In the dystopian-like version of The Sims, researchers simulated a nuke exploding in Washington DC (pictured).