Quick Answer: The Fire Syringe, also known as a Fire Piston, compresses air with a quick, firm stroke of the piston to produce a flash in the chamber, showing that rapidly doing work on a gas raises its temperature.
Last updated: October 2026
Key Features
Also known as a Fire Piston
A quick, firm stroke on the piston handle produces a flash in the chamber
The flash burns as long as there is air present
Supplied with combustible fibre and 2 replacement O-rings for the piston
About This Product
A small piece of combustible cotton fibre is placed in the syringe before the piston handle is pushed down sharply, compressing the air into a smaller volume. The demonstration shows how rapidly doing work on a gas results in an increase in temperature, and it is used when teaching energy transfer.
Frequently Asked Questions
Q1. What is supplied with the Fire Syringe? It comes with combustible fibre and 2 replacement O-rings for the piston.
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