Re: Not exactly rocket science but...

On Sat, 17 Jun 2006 02:02:20 +0100, Phineas T Puddleduck wrote:

In article <1150505375.490608.19450@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
<jt64@xxxxxxxx> wrote:


[quoted text muted]
Sugar and soda is always fun, the fizz is all the co2 leaving. But what is
more fun... Soda bottle rockets.

You can do something a bit easier with a two litre plastic soda bottle and
a foot pump. Half to quarter fill the bottle with water, and use a rubber
bing with a hole in it in the opening and over inflate it.

Its a little difficult to get right the first time, but as a kid I got
them a good 100 feet in the air

As a kid I used to have a toy plastic rocket that worked on a similar
principle; the rocket was filled with some water and placed on a small
handpump (that came with the rocket). The pump would pressurize the
rocket, and then the rocket soared into the air -- probably about 100-200
ft or so, if that.

Unfortunately, I think the nozzle of the rocket broke (a clip on the pump
held it and it was probably subjected to some stress) and it was probably
discarded by Mom shortly afterwards. :-)

Not sure how one would ensure that the soda bottle doesn't twist in the
air. If that bing hole isn't straight a torque is going to be applied to
the bottle.

(Even if it is straight there's probably an issue with water slosh.)

--
#191, ewill3@xxxxxxxxxxxxx
It's still legal to go .sigless.

.

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