mentos+diet coke: hilarious

Forum covering all aspects of small gauge cinematography! This is the main discussion forum.

Moderator: Andreas Wideroe

User avatar
MovieStuff
Posts: 6135
Joined: Wed May 01, 2002 1:07 am
Real name: Roger Evans
Location: Kerrville, Texas
Contact:

mentos+diet coke: hilarious

Post by MovieStuff »

I know this is probably old news to most of you but I've been so busy I just saw this. Apparently if you put a butt-load of mentos into a 2 liter bottle of diet coke, you get a huuuuge reaction, like, immediately. Here is one of probably hundreds of videos showing the reaction:

http://video.google.com/videoplay?docid ... epsi&hl=en


I saw another link where a guy slammed a bottle down on the pavement and it shot off in the air like a rocket, clean over his house.

I am really fascinated by this. I can imagine why there would be a reaction but it is so violent and fast. Is there a chemist in the house?

Wouldn't this be a great cheap special effect for a Super 8 film? :D

Roger
aj
Senior member
Posts: 3556
Joined: Thu Oct 02, 2003 1:15 pm
Real name: Andre
Location: Netherlands
Contact:

Re: mentos+diet coke: hilarious

Post by aj »

MovieStuff wrote:I

.
.
.
Wouldn't this be a great cheap special effect for a Super 8 film? :D

Roger

Euh, like shooting from a vantage point and track the launced bottles or more like the rocket camera idea of Nigel. I.e. strap a (somebody else's) camera to a bottle and see what comes of these images when it is running when it is launched.
Last edited by aj on Thu Aug 10, 2006 3:19 pm, edited 1 time in total.
Kind regards,

André
Janne
Posts: 228
Joined: Thu Jul 21, 2005 7:52 pm
Location: Finland
Contact:

Post by Janne »

It has something to do with carbon dioxide and
arabic gum which brakes the surface tension.
Dr_Strangelove
Posts: 225
Joined: Wed Feb 15, 2006 9:49 pm
Location: Sweden

Post by Dr_Strangelove »

the two fellas in this video take the experiment to a whole new level

http://video.google.com/videoplay?docid ... 5&q=mentos
User avatar
jpolzfuss
Senior member
Posts: 1657
Joined: Wed Jun 22, 2005 12:16 am

Re: mentos+diet coke: hilarious

Post by jpolzfuss »

MovieStuff wrote:Wouldn't this be a great cheap special effect for a Super 8 film? :D
...yes, it'll be a nice effect when shooting a porn film :D
This space was left intenionally blank.
chachi
Posts: 724
Joined: Fri Mar 11, 2005 6:33 am

Post by chachi »

If you goto youtube.com and type in mentos, there are alot of examples of this both weak attempts and good ones.

Imagine how they found out this worked though? I feel sorry for the poor sap who tries to eat a bunch of mentos whilst drinking diet coke inorder to get on the next Jackass movie! 8O
User avatar
Nigel
Senior member
Posts: 2775
Joined: Sat Oct 05, 2002 10:14 am
Real name: Adam
Location: Lost

Post by Nigel »

I saw this done about a year ago at a party and have been trying to figure out how to make it bigger and better...

Like a drum of coke--An Old Faithful of Coke in the backyard would be fun.

Good Luck
User avatar
flatwood
Senior member
Posts: 1691
Joined: Tue Mar 04, 2003 5:55 am
Real name: Tabby Crabb
Location: Tylerville GA USA
Contact:

Post by flatwood »

The pros restrict the size of the opening to get more pressure.
http://MusicRiverofLife.com
http://TabbyCrabb.com
User avatar
Nigel
Senior member
Posts: 2775
Joined: Sat Oct 05, 2002 10:14 am
Real name: Adam
Location: Lost

Post by Nigel »

That is what I am saying...

A 55 gallon drum with just a small opening to get the real geyser.

Good Luck
jean
Posts: 694
Joined: Wed Dec 25, 2002 3:29 pm
Location: germany
Contact:

Post by jean »

makes me wonder if any poor fellow ever by accident drank some coke while chewing mentos?
have fun!
User avatar
MovieStuff
Posts: 6135
Joined: Wed May 01, 2002 1:07 am
Real name: Roger Evans
Location: Kerrville, Texas
Contact:

Post by MovieStuff »

jean wrote:makes me wonder if any poor fellow ever by accident drank some coke while chewing mentos?
Hey, there's a rapid weight loss program! Just drink a bottle of Diet Coke, pop some Mentos and hold your breath while your friends run from the room! :lol:

Roger
Angus
Senior member
Posts: 3888
Joined: Fri Mar 07, 2003 11:22 am
Contact:

Post by Angus »

As you may know I work in the science department of a London school...a few days before this phenomenon was spread across the London newspapers a teacher picked it up on an internet forum and we tried it...works really well...

There's a spoof video somewhere on YouTube of a girl eating mints, drinking pepsi, dancing around and exploding.....
The government says that by 2010 30% of us will be fat....I am merely a trendsetter :)
Evan Kubota
Senior member
Posts: 2565
Joined: Sun Apr 03, 2005 9:04 am
Location: FL
Contact:

Post by Evan Kubota »

I am really fascinated by this. I can imagine why there would be a reaction but it is so violent and fast. Is there a chemist in the house?
The sugar in the Mentos lowers the surface tension, and it has a rough surface at the molecular level - this provides many nucleation sites for the CO2 to come out of solution as bubbles. The surface tension is lowered, so the bubbles are able to migrate into the atmosphere.

I don't know why Diet Coke works better than other sodas. I hate the stuff and will never purchase it or consume it, so I can't be the one to ingest both simultaneously ;)
User avatar
MovieStuff
Posts: 6135
Joined: Wed May 01, 2002 1:07 am
Real name: Roger Evans
Location: Kerrville, Texas
Contact:

Post by MovieStuff »

I wonder if this could be used to unclog bathroom drains in a tub? Just pour some Diet Coke and mentos in the drain and hold down the stopper! 8O

Roger
T-Scan
Senior member
Posts: 2331
Joined: Mon Sep 08, 2003 9:19 am
Location: Portland, OR

Post by T-Scan »

Ahhh- 2 more restricted items in the airport security lines.
100D and Vision 3 please
Post Reply