Windscale fire

Article summary

The Windscale fire of 10 October 1957 was the worst nuclear accident in the United Kingdom's history, ranked in severity at level 5 out of 7 on the International Nuclear Event Scale. The fire was in Unit 1 of the two-pile Windscale site (now Sellafield) on the north-west coast of England in Cumberland. The two graphite-moderated reactors, referred to at the time as "piles", had been built as part of the British post-war atomic bomb project. Windscale Pile No. 1 was operational in October 1950, followed by Pile No. 2 in June 1951. The fire burned for three days and released radioactive fallout which spread across the UK and the rest of Europe. The radioactive isotope iodine-131, which may lead to cancer of the thyroid, was of particular concern at the time. It has since come to light that small but significant amounts of the highly dangerous radioactive isotope polonium-210 were also released. Calculations based on the amount of radiation released estimate that the accident may have caused 190 cases of cancer, with around 100 of these being fatal, however recent epidemiological studies failed to find any such increase. At the time of the incident, no one was evacuated from the surrounding area, but milk from about of the nearby countryside was destroyed for about a month afterward due to concerns about it being contaminated with iodine-131.…

Key claims

1. date of birth: 1950 — source: Wikipedia · confidence 0.95
2. date of birth: 1950 — source: Wikipedia · confidence 0.95
3. date of birth: 1950 — source: Wikipedia · confidence 0.95
4. date of establishment: 1946-02-04 — source: Wikipedia · confidence 0.95

Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. The record states that the date of birth is "1950". What evidence would count against this claim?
3. The record states that the date of birth is "1950". What evidence would count against this claim?
4. The record states that the date of birth is "1950". What evidence would count against this claim?
5. The record states that the date of establishment is "1946-02-04". What evidence would count against this claim?
6. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
7. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1374720239