Fire Syringe.
PIRA: Unknown
A small tuft of cotton is placed inside a cylinder fitted with a piston. When the piston is pushed inwards with a strong and sudden force, the air in the cylinder is compressed adiabatically to a small volume, rasing its temperature to alevel that ignites the cotton to produce a brief flame.
Equipment | Storage |
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Kit with instructions from Wards Natural Science. Has Cylinder on a stand | |
piston | |
o-rings to insure small loss of gas under compression | |
cotton supply | |
lubricant to prevent piston from sticking | |
and a plastic straw with cut end to aid in removing burnt cotton. |
Unfortunately, there are no media for this demo. :(
Video: Pressure ignites a piece of cotton inside a piston