Chapter 1
The fateful test at reactor four
Chapter 2
The human shield of liquidators
Chapter 3
A city frozen in time
Chapter 4
The modern shield and memory
YOUR GOAL
Master of The human story of Chernobyl
Ch 1 · The fateful test at reactor four
artiteacher Graphite tips on the AZ-5 shutdown button briefly increased reaction rates, creating a positive void coefficient that instantly
artiteacher Glowing holographic outlines show the first responders standing before the ruined Chernobyl reactor.
Fun Fact
Sweden detected it: On April 28, 1986, Sweden's Forsmark Nuclear Power Plant detected radioactive particles on a worker's shoes, alerting the world to the Chernobyl disaster.
Glossary
scram (noun)
The rapid emergency shutdown of a nuclear reactor. On April 26, 1986, operators initiated this procedure at Chernobyl's fourth unit, triggering a catastrophic power surge.
The rapid emergency shutdown of a nuclear reactor. On April 26, 1986, operators initiated this procedure at Chernobyl's fourth unit, triggering a catastrophic power surge.
Quiz
At what exact time did the steam explosion occur at Chernobyl's Reactor 4 on April 26, 1986?
Quiz
What was the name of the specific nuclear reactor model used at the Chernobyl plant?
Quiz
Which European country's nuclear plant first detected Chernobyl's radiation leak on April 28, 1986?
Quiz
What was the name of the button pressed by operators to trigger an emergency shutdown of the reactor?
Quiz
What substance was used in the RBMK control rods that briefly accelerated the reaction during shutdown?
Quiz
How many firefighters and plant workers died from acute radiation sickness within three months of the disaster?
Quiz
Which young firefighter led the first response team to Reactor 4 and died of radiation sickness?