Casing

Article summary

Casing may refer to enclosing or surrounding material, such as: * * Shell (disambiguation) * * * Sleeve (disambiguation) * * Casing (ammunition), shell enclosing the explosive propellant in a projectile cartridge * Casing (borehole), metal tube used during the drilling of a well * Casing (molding), decorative molding surrounding door or window openings * Casing (sausage), thin covering holding the food contents of sausage * Casing (submarine), platform attached to the upper side of a submersible vehicle * Organ casing, the component that surrounds the pipes, action, and wind system Casing or Casings may also refer to: * Letter case, the distinction between upper and lowercase letters in typography * Surreptitious reconnaissance, especially to aid a robbery * "Casings" (Ethel Cain song)

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Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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