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I'm not agree with you Jack. According to me the best position for the droplet should have been on the upper third line and at the cross of left and upper lines as the drop is "looking" down (gravity is a fact...).Really well done @Guest 1012 . I would say to have the droplet in the middle of frame, as there is nothing else in composition. Apart from that, I love it.
I don't know if some products added to water can improve the size of the droplet but higher magnification can do the same result...Thanks for ideas and advice! I'll try to redo this experiment soon. Any ideas on how to make the drop bigger and to stick better? Do I need to put something in the water?