History Fragments | Real Historical Footage on Instagram: "After the Chernobyl disaster in April 1986, Soviet engineers raced to contain the wreckage of Reactor 4. In just over 200 days, they built a massive concrete-and-steel shell called the Sarcophagus, designed to seal in the radioactive debris. Crews worked in extreme radiation, using cranes, remote equipment, and lead shielding to construct walls, a cooling slab, and support structures. Though it reduced contamination, the Sarcophagus was

Motion Of Physics on Instagram: "What happens when a nuclear reactor completely melts down? This video focuses on the Elephant’s Foot, a solid mass of corium formed during the Chernobyl Nuclear Disaster inside Chernobyl Nuclear Power Plant Unit 4. The material was created when nuclear fuel, control rods, concrete, and steel melted together and flowed into the lower levels of the reactor building. The mass eventually cooled and hardened in a steam distribution corridor in the basement, forming a