How Everything Works on Instagram: "After the 1986 explosion at Chernobyl, Reactor No. 4 became something unlike anything else humans had ever created — a machine that was no longer under control, yet still producing deadly radiation around the clock. Inside the ruined reactor sat hundreds of tons of nuclear fuel undergoing uncontrolled decay, releasing intense gamma radiation and radioactive particles that could kill a person in seconds. The melted core, later known as the “Elephant’s Foot,” wa