This is really a variant on the old blowing
smoke rings trick back in the days when people smoked a lot
If you get the
smoke into a chamber, and then use are to push it out, you can have a ball of
smoke sent out over the audience
Basically you need a source of the
smoke, and source of some compressed air
It is possible to do it with a
pvc tube say looking like a canon, you would feed the
smoke in first, with the front of the
barrel closed to hold the
smoke, then
switch to compressed air, and open up the front of the
barrel and you will have the
smoke projected out over the audience.
You can do it with a co2 fire extinguisher since it creates a cold
smoke that tends not to rise, and then a can of compressed air to propel it If you wanted to get more mechanical, you could have a plunger type device in the
pvc tube behind where you put the
smoke in, you then fill the forward chamber, and at the same time as you unblock the front exit you ram the plunger forward could be rubber or bungie controlled ,
Basically the
smoke will tend to hang together especially if it is cold. and since it is very light but denser than the surrounding air, you can puff it out.
There used to be a large bill board in NYC that was an add for camel cigaretts, then had a person smoking and the
system kept blowing
smoke rings
Sharyn
Sharyn