[peer_gynt]

Hello everyone,

I am an student of interior design from Italy and I have some ideas for research that require help from chemists. First of all, I would like to apologize for possible ignorance I will demonstrate in following part of the post, I tried to inform myself as much as possible, but there is not much info on the web about this (or, more likely - I searched in the wrong places).

As you are familiar, in previous centuries it was almost normal thing to paint sky on the vaults of the buildings. It was something like this:

http://media-2.web.britannica.com/eb-media//27/99427-050-6E134B40.jpg

But this practice was abandoned by the beginning of the 20th century. Now, I am thinking is there some way to create a more abstract, but dynamic representation of sky in the interior. I am having something like this gif in mind:

http://media3.giphy.com/media/PIh4laWJlz9bq/giphy.gif

So, is there some chemical reaction that can create "clouds" in some fluid. These clouds should change so people can notice it - like the real time change. My idea is that all this be put in some glass tank (and maybe mounted to the ceiling - but that are technical solutions that I will come up with).

I am familiar with crystallization, but I need some process that is occurring much faster.

Thank you in advance.

All the best!

[billnotgatez]

Although not the exact solution you suggested.
Maybe lava lamp methodology might be used.

[peer_gynt]

Yes, it is not really what am I looking for, but I will continue to research in that direction.

Thank you for the help.

P. S. Also, if anyone knows some other resources where I can find information, please tell me

[ATMyller]

I think you can achieve that kind of a visual effect much easier with couple of billboard size electronic ink displays.