What 2 Colored Droplets Of Water Did On Camera Is Bizarrely Fascinating

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Need something to stare at for a short time? Look no farther than these oddly acting droplets of water and food coloring. We guarantee, it”s nowhere near as boring as it sounds.

Nate Cira found something odd while he was working on an undergraduate job. Droplets of water dyed with food coloring discovering other droplets with matching colours to join with, were migrating across surfaces independently, and preventing otherwise coloured droplets. He was fascinated, but baffled.

Manu Prakash and Adrien Benusiglio joined in his research into the occurrence Cira. The procedure by which the dyed water appeared to dance in what looked like a social arena was examined by the threesome. The droplets make contact, would approach one another, or prevent each other based on the colour of their dyes.

So were they living? Did the research team find water that is racist?

No. The behaviour, they discovered was a consequence of the unique elements of each of the drops. Food dye is made from water and propylene glycol. The various quantities of propylene glycol caused the droplets to display different behaviours and gave each colour exceptional properties. This is referred to as man-made chemotaxis. (Chemotaxis is when single cells show what is apparently mindful, societal behaviour.) An explanation of the fascinating behaviour can be seen in the video below.

(via YouTube/Standord, Colossal)

If you”re interested in the more sophisticated theories of fluid dynamics, you can read Cira, Prakash, and Benusiglio”s study in Nature. Or, you could break the food dye out and see when you can recreate the experiments yourself. The footage you see in the video and the .gifs has been sped up, so if you”re going to attempt this, be patient.


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