[alfa6]

A one liter pop bottle will send a plastic 5gal bucket about 20 to 30 ft straight up with a little luck.

I won't began to talk about acetleyne ballons, :-)

Regards

alfa6 ;>}

[trebb]

Acetylene balloons - carbide?

I used to make Hydrogen by mixing lye and water and adding aluminum foil (when I wasn't making my own black gunpowder for firecrackers).

[edwin hubble]

Someone tried to store CO2 pellets in a 16 oz soft drink bottle in a refrigerator freezer. When it finally blew it sent the freezer door across the room and bent it (and the refrigerator) like it had been hit by a truck.

The key is the amount of pressure the plastic bottle will hold - and the damage it can do. Thus the felony penalty if done with intent to harm.