[Year 12 IT Apps] Re: OT Rocket Science qn..

[Mark Kelly]

Sorry to be a party pooper, guys, but this would do better in the 
Offtopic list.

Cameron Bell wrote:
> We used to do it at a previous school with an adventurous sci lab tech 
> who mixed up hydrogen and oxygen with water in the bottle.
> The bottle was inserted on a plastic conduit pipe that had two wires 
> running up the middle and were exposed at the top.  Just add battery!
> We did learn that you can't use the same bottle twice. the intial 
> explosion sort of annealed (?) the plastic to make it very very brittle, 
> so any subsequent launches just shattered the bottle.
> Did it out on the oval. Kids loved it!  Boy did we get some height!
> Cheers
> Cameron
> 
> Russell Edwards wrote:
>>
>> On 14/08/2007, at 11:16 PM, McDonald, Debra A1 wrote:
>>> our school does this but with water rockets.. and it is much easier..
>>
>> _Water_? Booooo!!! No loud hissing noise, no billowing smoke, how 
>> boring! Everyone knows it's the pyrotechnics and not the principles of 
>> propulsion or ballistics that make it fun ;-)
>>
>> Russell
>>
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