I know this is an easy word, Experiment, is exactly the same in Catalan than in English; a test, trial, or set of actions, esp. one for the purpose of discovering something unknown or of testing a principle, law, or theory. Experiment ... /əkspərɪme:nt/
I choose this word not for the meaning but for what I was doing while I did the calligraphy! I learned this technique at the London Stationery Show and I had so much fun doing it...!
Simply I used my watercolour paints and then, put some salt (yes, kitchen salt!) on it. It makes these beautiful patterns and dry the paint more quickly. You just have to spend a little time removing the dried salt from the paper...! ;) Easy, fun and with a beautiful result, perfect, don't you think?