# We can paint in a piece of paper but why can't we paint in the air? [closed]

People might say that is is because air has no source to absorb the paint but even air has molecules so then, why is it that we can't paint in the air?

## closed as off-topic by Separatrix, L.Dutch♦, F1Krazy, Mołot, dot_Sp0TApr 18 '18 at 9:13

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question does not appear to be about worldbuilding, within the scope defined in the help center." – Separatrix, L.Dutch, F1Krazy, Mołot, dot_Sp0T
If this question can be reworded to fit the rules in the help center, please edit the question.

• Because in order to paint you would need to use paint and air is not a good medium to deposit said paint! – Cbm.cbm Apr 18 '18 at 8:32
• You absolutely can. see e.g. en.wikipedia.org/wiki/Skywriting . You can also have a dye molecule in a matrix of nitrogen molecules which technically would also be "painting in the air". – Raditz_35 Apr 18 '18 at 8:36
• We can paint in the air. The problem is that air is a fluid, and molecules in a fluid move around a lot, thus dispersing the pigment and effacing the image. – AlexP Apr 18 '18 at 8:46
• Welcome to worldbuilding. As the name might suggest, here we like worldbuilding questions. Your looks hardly as such. Can you rework it? – L.Dutch Apr 18 '18 at 8:56

• @AryaShrestha To tag another user in your comment, just type @ followed by their name, as I did. It even autocompletes for you. – F1Krazy Apr 18 '18 at 9:11