I had a Fire syringe from a science supply company and It would not work. I
discovered that the plunger was not going all the way down because of a
design flaw. Once I fixed it, it worked well. One must be careful to get
all the water from combustion out of the tube after it burns and to get a
fresh supply of oxygen into the tube or it will not easily work again.
Fred Bucheit
Nothing has meaning except in relation to something else.