Diet Coke & Mentos in super-slow-motion (1200fps)

When filmed at 1200 fps with the new Casio Exilim EX-F1 camera, the familiar Diet Coke & Mentos reaction takes on a whole new look

Category:

Science & Technology

Tags:

• diet
• coke
• mentos
• slow
• motion
• exilim
• ex-f1
• 1200fps

[MadOverlord]

Google "diet coke and mentos coffey" to find the links to the AJP paper by Tonya Coffey.

[MadOverlord]

@ValerieRollins: Since the CO2 is in solution -- not chemically bound -- the mechanism you propose is that the solubility is changing, either by a chemical reaction or (more likely) the mixture of the Mentos with the Cola ingredients.

Have you tried repressurizing the soda and then dropping some more Mentos back into it?

Published research in AJP disagrees with you, btw

[Sonicx5698]

This should be a Diet Coke Ad

[MadOverlord]

@Sonicx5698 Except for the fact that doing this ruins the taste, sure. Unless you go for the "Diet Coke -- oh, it also tastes good" angle.

[quekazoo]

@PedroLop98, its only diet coke, no one likes diet coke.

[MadOverlord]

Nobody has died from Diet Coke & Mentos. It is not a chemical reaction, but a physical one. The Mentos provide billions of nucleation sites on their surfaces that permit the rapid formation of the bubbles - what would happen over a period of hours (the soda going flat) instead happens in seconds.

[ValerieRollins]

@MadOverlord, I teach high school physical science and use the mentos/coke example in my classroom. The fact that you see fizzing (release of carbon dioxide gas), resulting in the flat-tasting soda, is a direct result of the chemical reaction b/t the mentos & soda. If this were a physical reaction, you would be able to "put the soda back together", so to speak. The only way to "unflatten" the soda would be to chemically add carbon dioxide back to it. So, no, this is not a physical change.

[Gonzalomv]

Really i dont care about chemical reactions and that... but i cant beleavie how, can 20, not 1 or 2, twenty people colud rate this video as bad, really i cant understand that.This video is amazing

[grb345]

reminds me of when i jizz.. idk why...

[Raegan607]

Very cool why does it do that

[SamuelsCamera]

@thodoris789 @thodoris789 you need a camera that can film at a high fps, the casio exilm brand is good for this, if you dont know what fps is, it stands for frames per second, a frame is like a picture, to create video, the camera takes a bunch of pictures all in a row, when played fast it creates a moving image, standerd footage is recorded at 30 fps.if you up the fps to say 300 it takes 300 picture each second Then if you play it at 30fps it appears to be slower than normal. more fps = slower.

[SamuelSlowMotionTV]

no comments for a month what????