SeaMonkey Posted June 24, 2009 Share Posted June 24, 2009 OK last suggestion, and this one creates suspense, cause you just never know when the pressure of the reaction will over come the physical friction. A mixture of vinegar(acetic acid) and sodium bicarbonate(baking soda) will produce a reaction giving off carbon dioxide. Both chemicals are relatively harmless and adding a little soap will definitely increase the overall visual effect(foaming bubbles). You'll have to experiment with the proper dosages, but that's the fun part. Make sure you wear eye protection. Have fun! 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 24, 2009 Share Posted June 24, 2009 A mixture of vinegar(acetic acid) and sodium bicarbonate(baking soda) will produce a reaction giving off carbon dioxide. You didn't read my last post on the first page, did you? Michael 0 Quote Link to comment Share on other sites More sharing options...
Stalins Organ Posted June 25, 2009 Share Posted June 25, 2009 So how'd it go?? huh? huh? We want photos, Youtube video, interviews, scandal.......did she have the help of a used car dealer or the PM?? 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted June 25, 2009 Author Share Posted June 25, 2009 My dad is a car dealer! I think the kids will all have their moment in the sun next week. Or rather, the parents who actually did the work. I think the strangest entry is the kids whose dad has just slapped together a 1/400 model kit of the Graf Spee. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 25, 2009 Share Posted June 25, 2009 My dad is a car dealer! Well that rather rounds things out, doesn't it? Does he wear a lot of plaid? Michael 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted June 25, 2009 Author Share Posted June 25, 2009 Nah. He works the other end of the market. He's selling to 65 year old CEOs and their wives. People that like to deal with an older man in a crisp white shirt and sober tie. Unfortunately, I can't afford the cars he sells. So I still have to deal with the 23 year old morons with baseball jackets and cigarette breath when I'm looking for wheels. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 25, 2009 Share Posted June 25, 2009 ...I still have to deal with the 23 year old morons with baseball jackets and cigarette breath when I'm looking for wheels. Ever think of just knocking them on their heads? Just on general principles? Michael 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted June 26, 2009 Share Posted June 26, 2009 This thread was a good read (Even the off topic car dealer comments). Some of the rocket propulsion statements I'd known (And forgotten) over the years. The use of liquid detergent to lower the cohesiveness of the water is something I use everyday in gem polishing, but I would have never thought of it as something which could boost a water rocket's performance. Good job, guys. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 26, 2009 Share Posted June 26, 2009 Good job, guys. The bill is in the mail. Prompt payment is appreciated. Michael 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted June 26, 2009 Share Posted June 26, 2009 The bill is in the mail. Prompt payment is appreciated. Michael We're a bit strapped for cash, so I hope you'll accept a laurel... and hearty handshake. 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 26, 2009 Share Posted June 26, 2009 We're a bit strapped for cash, so I hope you'll accept a laurel... and hearty handshake. A case of one of the better imported beers will suffice. I believe you have my address? Michael 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted June 26, 2009 Share Posted June 26, 2009 Cell 13A, Port Townsend Home for the Chronically Wrinkled? Yes, I still have it. 0 Quote Link to comment Share on other sites More sharing options...
MeatEtr Posted June 26, 2009 Share Posted June 26, 2009 Cell 13A, Port Townsend Home for the Chronically Wrinkled? Yes, I still have it. Ok that was a good one, lol! 0 Quote Link to comment Share on other sites More sharing options...
Michael Emrys Posted June 26, 2009 Share Posted June 26, 2009 Was not! :mad: Michael 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted June 26, 2009 Author Share Posted June 26, 2009 It has been a good thread. Little Affentitten's speech is being rehearsed this weekend and hopefully she'll make an impressive display with her rocket. Luckily this household is generously supplied with empty tonic water bottles. 0 Quote Link to comment Share on other sites More sharing options...
costard Posted June 27, 2009 Share Posted June 27, 2009 Break a leg. 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted July 2, 2009 Share Posted July 2, 2009 So? What happened? 0 Quote Link to comment Share on other sites More sharing options...
Bugged Posted July 2, 2009 Share Posted July 2, 2009 And maybe while he's at it, he'll finish the story of his time in Africa. 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted July 2, 2009 Share Posted July 2, 2009 And maybe while he's at it, he'll finish the story of his time in Africa. Oh, you mean the one where he was telling how he shot an elephant in his pajamas and how it got in there, he'll never know? 0 Quote Link to comment Share on other sites More sharing options...
Affentitten Posted July 2, 2009 Author Share Posted July 2, 2009 Apparently it went very well. She was a little disappointed because her regular teacher was off sick. But the substitute thought it was terriffic and said she had "set a pretty high benchmark" for the other kids. We added red food colouring to the water and this also proved to be a crowd pleaser. As for Africa.....Bugged is obviously a long-term fan! God knows what happened to all that stuff when the forum got updated and I moved jobs. 0 Quote Link to comment Share on other sites More sharing options...
Boo Radley Posted July 2, 2009 Share Posted July 2, 2009 How high did it go? Did your daughter win the respect and admiration of her peers? Did anybody lose an eye???!?!?! 0 Quote Link to comment Share on other sites More sharing options...
Jev.Dk Posted July 4, 2009 Share Posted July 4, 2009 Or you could ask some friends of mine http://www.copenhagensuborbitals.com/ 0 Quote Link to comment Share on other sites More sharing options...
stoat Posted July 4, 2009 Share Posted July 4, 2009 And maybe while he's at it, he'll finish the story of his time in Africa. Is your e-mail address still hot4affentitten? 0 Quote Link to comment Share on other sites More sharing options...
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