what's this?one of the bottles water is cold and the second one is heated water. then where does the ink goes ?and how the heated water vanishes it?this liquid is water or not can you tell me ?
This is a great demo of diffusion, not of Brownian motion. To demonstrate Brownian motion you need particles which are large enough to see under a microscope but small enough to be visibly buffeted around by the motion of the invisibly small atoms of the surrounding fluid. Robert Brown is not remembered for pointing out that ink diffuses more quickly through hot water - important though that observation is.
@e2m7i I'm guessing the temperature of the water provides kinetic energy to the molecules, which makes for the movement of the ink, although not a good example, because of heat currents. LOL at Slavic people being such doomy looking khunts.
@e2m7i I'm guessing the temperature of the water provides kinetic energy to the molecules, which makes for the movement of the ink, although not a good example, because of heat currents. LOL at Slavic people being such doomy looking khunts.
Nice and clear demonstration: As temperature increases so does molecular motion. I like it.
HolgerFrancisco 3 weeks ago
brilliant video
msjessypp 1 month ago
what's this?one of the bottles water is cold and the second one is heated water. then where does the ink goes ?and how the heated water vanishes it?this liquid is water or not can you tell me ?
BadshahShaharyar 2 months ago
seeing it in school -.- but still better than siting around xD
VirusSquad 2 months ago
Got the idea :)
Decgaid06 3 months ago
Let's see my new technic brownian motion model
inventbyboonchai 4 months ago
This is a great demo of diffusion, not of Brownian motion. To demonstrate Brownian motion you need particles which are large enough to see under a microscope but small enough to be visibly buffeted around by the motion of the invisibly small atoms of the surrounding fluid. Robert Brown is not remembered for pointing out that ink diffuses more quickly through hot water - important though that observation is.
Also - "apparently random"? Not just "random"?
Moletrouser 4 months ago 4
Thank you for posting this, it helped alot! :)
kimchucollection 5 months ago
try putting an ice cube in it and see what happens.
MonochromeF3ar 8 months ago
why isnt my water working
Shawguy17 11 months ago
add sound!!!
icefire309 1 year ago
oh my days! you can make a human face in the bottle on the right hand side from 1:33
knowtice08 1 year ago 4
I can see it mixes much faster but.. could you have used ink that does not go clear in hot water?
5ergey 1 year ago
@5ergey The ink did not "go clear." It simply mixed with the water. Because the ink particles were so far apart, the water looked only faintly blue.
DwayneHoover94 11 months ago
WHAT DOES THE BACK OF YOUR SHIRT SAY?
mistermuffin420 1 year ago 19
and how fast, on average, do molecules of water move at RT?
mistermuffin420 1 year ago
@mistermuffin420 apoximate 1400 miles per hour in a random motion.
zer0dahero 1 year ago
@mistermuffin420 why are we running out of it thats what the back of his shirt says
icefire309 1 year ago
cool stuff :D
monkpkey 1 year ago
I'm sure that's not ink . What it is?
Arghira 2 years ago
It's ordinary blue ink.
coolphysicsvideos 2 years ago 6
you should mingle the cold liquid at the end
e2m7i 2 years ago 7
This has been flagged as spam show
@e2m7i I'm guessing the temperature of the water provides kinetic energy to the molecules, which makes for the movement of the ink, although not a good example, because of heat currents. LOL at Slavic people being such doomy looking khunts.
lofi50 1 year ago
This has been flagged as spam show
@e2m7i I'm guessing the temperature of the water provides kinetic energy to the molecules, which makes for the movement of the ink, although not a good example, because of heat currents. LOL at Slavic people being such doomy looking khunts.
lofi50 1 year ago