A third demonstration of the Marangoni effect. Here, small shapes are cut out of cardboard and placed on the surface of water. A volatile organic liquid is added to the water. After some time, you observe the cardboard pieces moving chaotically on the water surface. This effect is again due to surface tension gradients that arise once the organic liquid begins to evaporate.
"They're....comunicating... with us..."
jMsism 1 year ago
What is the fluid you're adding to the water? If you added soap, would teh surface tension still be enough to support them? Thanks-good video!
chipinlhp 1 year ago
What type of liquid would you add to the water to create this effect? Iodine? Thanks!
50calfrag 1 year ago
cool
Kamelg 1 year ago
hehehe, it's always good to see the reality of our teories (brownian motion). I was expecting much smaller forces :O
frangossauro 2 years ago
good
Domytar 3 years ago
Teacher Bertran was love very much this video...
Wake up girl!!! (rs)
rocharen 3 years ago
Teacher Bertran was love very much this video...
rocharen 3 years ago