A little more info on what was happening would have been nice.
What was the purpose of this demonstration?

4-hydroxybenzaldehyde has a melting point of around 114C. So that is a very hot liquid 4-hydroxybenzaldehyde in the conical flask. When it is placed into the ice it will start to solidify very quickly. The cooling process probably creates thermal currants inside the flask. Combined with a swirl of the flask before it was placed into the ice.

As the material cools it solidifies and recrystallizes creating a mixture of hot liquid 4-hydroxybenzaldehyde and solid 4-hydroxybenzaldehyde. Which is what creates those beautiful patterns, and the fight between molten and cold 4-hydroxybenzaldehyde.

At least that's my guess

One of the most beautiful displays of a cooling material I have ever seen. And this demo serves no other purpose than to just look pretty and demonstrate rapid cooling effects.

Thank you science buffs

@2 A true hero..using ancient forbidden knowledge for transmuting red wine to fresh orange juice..For all humanity's well being!

Thank you #3! Just one nitpick: the flask was not swirled before being lowered - they use a magnetic stirrer. https://en.wikipedia.org/wiki/Magnetic_stirrer

"Whaaa...?"