Brownian motion

Brownian motion is the seemingly random movement of particles suspended in a fluid. In the water with higher temperature particles are moving faster.

Category:

Science & Technology

Tags:

• Brownian motion
• temperature
• heat
• physics experiment
• science project
• optics
• education

[Arghira]

I'm sure that's not ink . What it is?

[coolphysicsvideos]

It's ordinary blue ink.

[mistermuffin420]

WHAT DOES THE BACK OF YOUR SHIRT SAY?

[e2m7i]

you should mingle the cold liquid at the end

[HolgerFrancisco]

Nice and clear demonstration: As temperature increases so does molecular motion. I like it.

[msjessypp]

brilliant video

[BadshahShaharyar]

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 ?

[VirusSquad]

seeing it in school -.- but still better than siting around xD

[Decgaid06]

Got the idea :)

[inventbyboonchai]

Let's see my new technic brownian motion model

[Moletrouser]

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"?

[kimchucollection]

Thank you for posting this, it helped alot! :)

[MonochromeF3ar]

try putting an ice cube in it and see what happens.

[Shawguy17]

why isnt my water working