Diffusion of skittle colors
Professor Hertzberg’s note: Although there is little information reliably published on this common ‘science experiment’, this phenomenon is likely due to Marangoni (surface tension driven) flow. Food dye is a surfactant, which reduces surface tension, as does sugar from the dissolving candy coating. The circle geometry will reduce surface tension around the inner ring of Skittles more than around the outside. Higher surface tension in the undyed center draws the dyed fluid in, maintaining radial symmetry. (Jan 21, 2019)
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What a fun experiment to do. This is a great idea that we can all relate to :D
I think it’s an interesting choice having 4 stills to demonstrate the flow instead of a video.
Nice editing work makes the image frame in an aesthetic way. And the brightness and contract were well adjusted. Good work!
I like the black hole-like illusion in the flow physics. The time lapse looks like its forming a vortex.
This is, aptly put, a very fun image. It is cool seeing stills of all the different steps of the process, because it gives more time to think about what’s happening.
I like your idea of sharing a collection of images. It is nice to be able to follow the series of events through a few pictures.
Good progression visualization and the colors look fun. The glare is a little unfortunate but not too distracting.
Very cool 3d imagery with the circular pattern and the way the flow travels. Really cool visual of a flow into a plate.
Love the colors! This is something that I have seen for years, but never thought to put it in an image.
These images are super nice! I really like that you decided to break down the flow into respective images. The last images is slightly muddy but that’s ok!
I like how this shows the progression of the flow. The lower left image is especially crisp!