Lesson plan

Squib (explosive)

stunt where bullet hit squibs hidden in the actor's costume blew open pre-scored "bullet holes", bursting fake blood through and subsequently running down the jacket. A squib is a miniature explosive device used in a wide range of industries and applications, from special effects to the military. It resembles a tiny stick of dynamite, both in appearance and construction, but has considerably less explosive power. A modern squib includes two electrical leads separated by a plug of insulating material; a small bridge wire or electrical resistance heater; and a bead of heat-sensitive chemical composition, in which the bridge wire is embedded. Squibs can generate mechanical force to shatter or propel various materials; they can provide pyrotechnic effects for film and for live theatrics. A squib generally consists of a small tube filled with an explosive substance, with a detonator running through the length of its core, similar to a stick of dynamite. Also similar to dynamite, the detonator can be a slow-burning fuse, or (as is more common today) a wire connected to a remote electronic trigger. Squibs range in size from ~ in diameter.

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Article summary

stunt where bullet hit squibs hidden in the actor's costume blew open pre-scored "bullet holes", bursting fake blood through and subsequently running down the jacket. A squib is a miniature explosive device used in a wide range of industries and applications, from special effects to the military. It resembles a tiny stick of dynamite, both in appearance and construction, but has considerably less explosive power. A modern squib includes two electrical leads separated by a plug of insulating material; a small bridge wire or electrical resistance heater; and a bead of heat-sensitive chemical composition, in which the bridge wire is embedded. Squibs can generate mechanical force to shatter or propel various materials; they can provide pyrotechnic effects for film and for live theatrics. A squib generally consists of a small tube filled with an explosive substance, with a detonator running through the length of its core, similar to a stick of dynamite. Also similar to dynamite, the detonator can be a slow-burning fuse, or (as is more common today) a wire connected to a remote electronic trigger. Squibs range in size from ~ in diameter.

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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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