4. The reactor had a dangerously large positive void coefficient. The void coefficient is a measurement of how a reactor responds to increased steam formation in the water coolant.
5. A more significant flaw was in the design of the control rods that are inserted into the reactor to slow down the reaction.
6. Other deficiencies besides these were noted in reactor design, as were its non-compliance with accepted standards and with the requirements of nuclear reactor safety
7.
8. 203 people were hospitalized immediately. 31 of them eventually died. Most of these people were workers in the plant or local firefighters.
15. Psychological ImpactPeople have been led to think of themselves as victims over the years, and are therefore more apt to take a passive approach toward their future rather than developing a system of self-sufficiency.
24. Humans were evacuated from within a 20-kilometre radius of the earthquake-damaged Fukushima nuclear reactor complex soon after the overheated reactors and spent fuel ponds began leaking radiation.