Re: It's all fun and games until...
 

Party pooper. Although the mentioned concerns are valid, there is a simple way to compensate. Enclose all potenital projectile particles in an appropriate container that will properly constrain any errant motion. For an excellent example, please refer to this experiment, which is conducted with all the proper precautions.

-dave

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

so what happens if you drink Diet Coke while chewing on a Mentos mint ?

what happens if you drink about a liter of D coke and then swallow one :eek:

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

I tried putting mentos and coke in my mouth at the same time. Basically you sort of just fizz and then realize your mouth isn't nearly as big as you thought it was.

Re: It's all fun and games until...
 

Haha! But, is it me or did she just pour it down the front of herslef without actually drinink any?

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

I acually own a mechanism to launch plastic bottles with using compressed air and liquids...I definitely gotta try this...I know what I'm buying when I get off work tomorrow.

EDIT: 500th post for me.

Re: It's all fun and games until...
 

That's one way, Dave. Another way is throwing it off of a two-story building (clip is in the middle of the video, but watch the whole thing anyways.)http://www.chilloutzone.de/files/06051902.html

Thanks go to artdutra04 for actually showing how to get the mentos in with out it blowing up in your face. I had been wondering how to do that. Now, all that can be done is wait until coke goes on sale and then it's off to the Hilton parking lot (I have a Hilton rliterally right in my backyard. I can see it typing this.)

Actually, on a side note, anyone have suggestions on where to do this (not on your own property) where nobody will really care and/or you won't get in trouble for it? Yah... having a small lot is a problem sometimes.

Thanks everyone,

The Canuck

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

I have a launch system to use, but I have to have time before the mentos react with the pop and start to creat pressure. Unfortunately, I have yet to figure out a time delay.

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

Well, what's the system? Maybe one of us can help you figure it out.

The Canuck

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

Try putting them in a napkin and then put them in. It will take time for it to break through

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

*cough* Why don't you actually watch the video in post number 1 and learn how? *cough*

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

Excuse the crudeness of my drawing, but I have attached a file showing the launch system I currently have. I have to add the mentos, but have time to turn the bottle over and place it on the launcher.

I did watch it and tried it, but I could not get them to go into the bottle without falling out or jamming up, which would cause it to react before I can safely setu a way to launch it.

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

Sounds like a good idea! What a wise man.

I have not tried it, but maybe another way to do it would be to do the conventional way by wrapping it in paper to keep them straight and orderly, then roll the tube (with open ends) in the plastic wrap. You could maybe even make sure the tube was longer so when one end was tied/twisted you could pull it (the tube) out and tie/twist the other end. Just throwing ideas out there... I'm waiting for summer to try everything (I get out the 28th :( ...you can all say "ouch- that sucks" now :D). I might be able to convince one of the counselors to do it one day...that would be fun... thus is the end of my rambling.

The Canuck

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

How about something that puts a hole in the cap? (eg, a big nail)

When the cap is punctured, the pressure has an exit.

You could also try preparing the bottle so that pressure build up just blows the bottle neck off. (or maybe blows it off with some help.)

Could you do some complex thing where the bottle is upside down, the mentos are suspended above the coke, and the string to release them is coming out the bottom?

Maybe a paint mixer would help to safely shake up the bottles.

You may want to barrow some player stations during testing.

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

this thread is well on its way to becoming an engineering design contest.

remember to take video of your best launch, if you want recognition for your design :^)

Re: One upping Dave: A Diet Coke and Mentos Rocket!
 

Might have to go scrounge through the garage for some piping or something to make a launcher... or a model rocket launch pad... :D. On that note, does anyone have any feasible way to "knock the top off" the bottle while upside down on a launch pad? In the video, they threw it on the ground, but does anyone have any ideas on how to launch it without putting a hole in the top or anything? Maybe Jamie's idea of putting a hole in it with a nail would work (e.x. force the bottle down on to the nail, then quickly pull hands back and watch it fly). I'm welcome to suggestions on how to improve this, like maybe putting more nails so hole is bigger, forcing it onto nails without human interaction (bungee cords????), etc...

PM me or post with any suggestions...

The Canuck