Fire a small, light projectile using a pressure difference generated by a vacuum cleaner.

Risks:

1. People being hit, and potentially injured, by the projectile.

2. Damage to surroundings

Control measures:

1/2. a. Demonstrator should maintain control of the direction the bazooka is firing in.

1/2. b. If not holding the firing tube the demonstrator should have the projectile, end stop or both in his/her possession at all times to prevent bazooka being fired by anyone else.

1/2. c. Bazooka should be sited to allow it to be fired along the room into a wall or (ideally)

curtain, such that people who are not involved in the experiment cannot accidentally walk through the area, and so that those that are participating can be excluded from the firing area during firing.

1/2. d. Projectile should be composed princially of light-weight packing material or similar (such as bubble wrap). It may be desirable to weight the front end with blu-tak or similar to encourage predictable flight but this should be done with consideration for the total resulting weight.

In case of accident:

1. In case of injury call first aider

2. Clear up any broken materials which might present a danger to demonstrators/the public. Inform a committee member.