When I was a teenager I used to have all kinds of fun with an air
compressor and 2 liter plastic bottles.  I used to launch them accross
my basement, etc.  They amazingly never popped at 180 PSI.  The one time
I filled one half full with water to make a super squirt gun it blew up
at under 100 PSI.  Luckilly I wasn't next to it.  From the looks of the
shrapnell there would have been some nasty injuries.

Greg Hastings wrote:

> Hi all,
>   Back in High school we built water rockets from 2 liter bottles
> and shot them into the air with an air compressor.
>
>   I am going to build some more, this time adding a PIC to it to
> record its highest altitude.  Does anyone have any ideas on how
> the altitude can be determined?
>
>   Also if anyone has done any projects involving rockets and
> microchips please email me.  I would be very interested to hear
> what you have done..
>
> Thanks,
>   Greg H. (ghpoe@hotmail.com)
>
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