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Unread 26-06-2006, 16:05
Ted Boucher Ted Boucher is offline
Its been awhile.....
FRC #0237 (Black Magic Robotics)
Team Role: Engineer
 
Join Date: Oct 2003
Rookie Year: 2003
Location: Watertown, CT
Posts: 281
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Re: One upping Dave: A Diet Coke and Mentos Rocket!

Quote:
Originally Posted by Elgin Clock
LOL Oops. So, Ted.. need any supplies from Home Depot tonight? I prolly won't be able to give them to you till Saturday anyways, but just wanted to know.. Text me and let me know.

Plans are underway!!! Oh yes.. plans.. plans are good.
lol probably not elgin... right now the only idea i have is to make it go boom..

So since my last post, I created quite an ingenious liftoff method. I used a tornado tube soda bottle connector, a full bottle of diet coke, and the 2 halfs of a cut up soda bottle. This used equal pressure to plug the hole of the diet coke until the reaction took place.

The 2 parts to this rocket:
Part A: This included a full diet coke bottle, the tornado tube connector, and the top screw half of a soda bottle.
Part B: Was the base part of a cut in half soda bottle.

I first wrapped a full tube of mentos in saran warp and inserted them into the open bottle of diet coke. Then I screwed on the tornado tube to complete the assembly of Part A. I then Part B over the cut in half section of bottle on Part A. This created a nice suction and made it so there were 2 equal sets of pressure on either side of the tornado tube. Then I turned it all upside down so the diet coke bottle was on top in the air, and the 2 halfs sections were on the bottom. To my enjoyment, the seal stayed and the diet coke was suspended in the top of the bottle only though the pressure. Then I shook Part A until the reaction took place and the newly created high pressure of Part A rushed into the lower pressure of Part B. There was enough pressure to have Part A shoot out of the base of Part B and fly up a crazy 2 feet in the air (grrr) and crazy down and spray me with diet coke.

I was quite happy with this experiment, and I am sure someone can improve upon it. lol The basic problem of it was it lost off if its power in the liftoff stage. It also tryed to lift off right when the pressure started to go off, with the original, it was shook up good and had built up a great deal of pressure.

I will post pics later on so it will be easier to understand, good luck everyone!
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FRC Team 237 Alumni (04-07)
Western New England College Class of 2011
FRC Team 237 Mentor (11-?)

Last edited by Ted Boucher : 26-06-2006 at 20:10.
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