Stars in the water
Some time ago I was sitting at this fountain, I was looking around and feeling the unknown new place, when then I looked at the water and focused on the part where the droplets from the fountain touched the surface, they made various bubbles. The bubbles then travelled further away from the rest, some independently, some in pairs or groups. Then they migrated to the part of the surface of the body of water where a sun hit them in just the right angle and projected star-looking shapes on the bottom, the stars like on the night sky, but these were much pointier and sparklier. Dozens of them were just floating around, it was such a lovely sight.
A little bit of explanation here:
This happens, because of the light refraction. When bubbles are formed on the water surface and the light passes through them, the light bends. The bubbles create this curved air-water interfaces, that act like lenses, which are bending and focusing the sunlight into bright spots or patterns on the bottom surface. The star patterns occure when the edges of the bubble scatter and diffract light, creating patterns and dark bands that resemble a star. And of course the slight movement of the water also helps with the sparkly effect.
The little details hidden in the daily life are magical. So have this as a reminder to take it slow, look around and notice small things.
I hope you enjoyed this little physics lesson, have a great day, rest of your day or night. Take care and see you sometime else.