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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

kno3 alternative

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Re: kno3 alternative

Post by Water Rocket Expert » Mon Feb 17, 2014 12:02 pm

Yeah, those kids must have been really stupid lighting it indoors without protection.



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Re: kno3 alternative

Post by bugwubber » Mon Feb 17, 2014 4:38 pm

It's just a bad month for homemade model rocket motor makers....


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Re: kno3 alternative

Post by Water Rocket Expert » Mon Feb 17, 2014 10:34 pm

bugwubber wrote:It's just a bad month for homemade model rocket motor makers....
So can you explain what was wrong with making model rocket motors. Is this illegal in California?



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Re: kno3 alternative

Post by bugwubber » Tue Feb 18, 2014 12:04 am

Water Rocket Expert wrote:
bugwubber wrote:It's just a bad month for homemade model rocket motor makers....
So can you explain what was wrong with making model rocket motors. Is this illegal in California?
what's wrong is the guy blew his hand off. The pros decided his house could not safely be cleaned up.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 12:09 am

Oh I didn't look that hard at the article. But still, making the stuff is not illegal. Next thing they'll be saying no sugar for tea, and no powdered weed killer.


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Re: kno3 alternative

Post by bugwubber » Tue Feb 18, 2014 10:27 am

Water Rocket Expert wrote:Oh I didn't look that hard at the article. But still, making the stuff is not illegal. Next thing they'll be saying no sugar for tea, and no powdered weed killer.
The article also states he hadn't been charged or arrested for anything.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 10:43 am

bugwubber wrote:
Water Rocket Expert wrote:Oh I didn't look that hard at the article. But still, making the stuff is not illegal. Next thing they'll be saying no sugar for tea, and no powdered weed killer.
The article also states he hadn't been charged or arrested for anything.
Oh, I see. They just wanted to make sure the place was safe.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 11:15 am

Did anyone say that this was even gunpowder.


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Re: kno3 alternative

Post by bugwubber » Tue Feb 18, 2014 7:01 pm

Water Rocket Expert wrote:Did anyone say that this was even gunpowder.
The article listed gunpowder among other unspecified chemicals.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 8:22 pm

Well if kids have their hands on the stuff without guidance, it will eventually happen. Even I have had a few incidents with piles of leaves catching fire after playing with pyrotechnic powder. So if kids have all that and no parental guidance....Well, here is the formula: SP+GP+NPA=Explosion where SP equals spare time and GP equals gun powder, and NPA equals no parental advisory.


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Re: kno3 alternative

Post by bugwubber » Tue Feb 18, 2014 8:39 pm

Water Rocket Expert wrote:Well if kids have their hands on the stuff without guidance, it will eventually happen. Even I have had a few incidents with piles of leaves catching fire after playing with pyrotechnic powder. So if kids have all that and no parental guidance....Well, here is the formula: SP+GP+NPA=Explosion where SP equals spare time and GP equals gun powder, and NPA equals no parental advisory.
Agreed. This particular story doesn't have kids however.

People familiar with something tend to become blind to the dangers over time.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 10:52 pm

Too true. It is like an old experienced lumber jack who forgets the dangers of his chainsaw and ends up with his arm off.


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Re: kno3 alternative

Post by Water Rocket Expert » Tue Feb 18, 2014 11:02 pm

For some people, even using matches is just too much responsibility. Even my dad doesn't let me purchase an oxygen tank :saber: for my hybrid rocket engine testing.

Due to issues with "irresponsibility" with paint, though I have temporarily been banned from rocketry altogether although this site does not count. Hopefully, within the next month I will be permitted to continue to build my wa 8) 8) ter rockets and Estes pyros.

Dumb adults who blow up the place. :explode: :explode:


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Re: kno3 alternative

Post by U.S. Water Rockets1 » Sun Feb 23, 2014 12:14 am

Water Rocket Expert wrote:Since I am 15, my dad would have to take me to the store to purchase it (unless I can buy it from my neighbor, or have my friends smuggle it home for me). On the way to Home Depot, my dad would say, "Why do you need stump remover". I say "Uh? Well I know, I need to remove that tree in the woods." Things would go down hill from there as my dad has a pretty bad idea of me playing with explosives although I try to make him understand that it is just an oxidizer, he says that in school, he remembers it being flammable. I build a hybrid motor today and the flame melted the nozzle made of a metal garden hose connector. I made the oxygen from bleach and hydrogen peroxide and the fuel being PVC. I ignited it using steel wool.

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Years ago, 15 year old boys faced the exact same challenges and overcame them one way or another, and the internet wasn't even available back then.


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Re: kno3 alternative

Post by bugwubber » Sun Feb 23, 2014 12:24 am

U.S. Water Rockets1 wrote:
Water Rocket Expert wrote:Since I am 15, my dad would have to take me to the store to purchase it (unless I can buy it from my neighbor, or have my friends smuggle it home for me). On the way to Home Depot, my dad would say, "Why do you need stump remover". I say "Uh? Well I know, I need to remove that tree in the woods." Things would go down hill from there as my dad has a pretty bad idea of me playing with explosives although I try to make him understand that it is just an oxidizer, he says that in school, he remembers it being flammable. I build a hybrid motor today and the flame melted the nozzle made of a metal garden hose connector. I made the oxygen from bleach and hydrogen peroxide and the fuel being PVC. I ignited it using steel wool.

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SPWR

Years ago, 15 year old boys faced the exact same challenges and overcame them one way or another, and the internet wasn't even available back then.
October Sky- favorite scene was the abandoned train line where they were attempting to overcome their funds shortage. Woo wooo!


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