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The ultimate Diet Coke & Mentos fountain experiment
So just how do you get geysers to go over 20 feet high?…
The Cartridge
The first big step is making a cartridge of Mentos. Holding a Mento with a pair of pliers, you can drill a small hole through the center. Do not drill a hole through your hand the way Matt did. Repeat: do not drill a hole through your hand the way Matt did.
String together five or six of your new “Mento-beads,” onto a straightened paper clip or a piece of fishing line.
The Cap
Holding a bottle cap with a pair of pliers, you can drill a hole (say 1/4 inch in diameter) through the top of the cap. Be careful here. If you are under age 35, please get help from an adult. Don’t forget Matt. We want you to have full use of all your fingers for many years to come.
Put the end of the paper clip or fishing line through the hole in the cap so that when you screw the cap onto the bottle, the cartridge will hang down inside, just above the soda.
Different size holes in the cap will make different size geysers. A 1/8 inch hole will make a tall geyser that lasts almost 30 seconds, whereas a 1/2 inch hole will last only 5 seconds. A 1/4 inch hole can get a geyser over 20 feet high.
I tried this a few weeks ago and got some smaller fountains, but I am going to try it again with these tricks.
Shows up for job interview and gets put on live TV
He wasn’t really a cabbie like the site says. He showed up for an IT job interview but happened to have the same name as an expert guest they were expecting to interview.
See the video here-
“The home to the Buy a Baldy fund raiser. Shaving our heads to help our sister pay for chemo medication.”
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“This is my homebrew NERF rifle. It’s basically a potato gun that’s tailored to shoot NERF darts.”
Video of Nerf dart destroying a light bulb
Comments
More details on the bottle rocket. When you say the mentos are hanging inside the bottle, they’re not touching the soda?
(I’ll remember Matt. Please remember some of us are girls and could only stand by and watch as the guys did the technical stuff.)
So, for the girls version, do you then shake the bottle to get it to explode or what?
Posted by: chronicler | June 5, 2006 08:16 AM
okay, in my defense, I didn’t see the link above….
Cool! I am going to do this! I am assuming it will work with club soda as well.
Posted by: chronicler | June 5, 2006 08:21 AM
Yeah, make sure the mentos aren’t touching the soda or it will go off.
When I did it I just put an index card over the mouth of the bottle and then put the mentos on top of the card in a rolled up paper tube. Then I would pull the card away and the Mentos would get caught in my paper tube and the first ones in would blow the rest of them out of the bottle. Not ideal.
This method looks perfect.
Posted by: Josh | June 5, 2006 08:43 AM
Josh:
I think I would like to make a modified version of the Nerf gun…making it a Nerf BAZOOKA!! We could use those winged wistling nerf footballs for ammo.
Are you in?
Posted by: shawn | June 5, 2006 01:34 PM
I am totally in!
Posted by: Josh | June 5, 2006 01:50 PM
Be careful with your mentos experiments. Have you seen this, forwarded from Ward’s friend? (not for the faint of heart) http://www.youtube.com/watch?v=LRBkQe_lwak
Posted by: Brian | June 9, 2006 10:06 AM