Science teacher Jacob Strickling is having a great time today (June 20) launching these little rockets attached to a string line for his students in Gosford, Australia.

The rockets are the little bulb canisters used in whipped cream dispensers and are guided along the string line.

The wooden arm slams into the canisters which causes the end to rupture open and the gas is released causing the canister to rocket forward.

There is a compilation of both real time and slow motion recording.