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This "fire syringe" or diesel piston demonstrator device shows the relationship between gas pressure and temperature – and how they can be used to start a miniature fire! The piston apparatus consists of a thick, clear plastic tube and a plunger. When the plunger is pushed down, the air in the tube is compressed, elevating the temperature enough to ignite a cotton ball. Includes instructions on how to use the fire syringe demonstrator.
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