A common sight here in the Seattle area: puddles in the rain. A drop hits, then a circular wavelet expands...

It seems like it should be a law of nature: reflections of a source cannot be brighter than the source...

Many of these leaves were on the forest floor. They look to be from different plants. Yet they are both...

The name is descriptive yet misleading. The colored edges of some clouds indeed look a lot like the colored interference...

On a gently rippled lake, look near the boundary between reflections of land objects and sky. If you are close...

Just rays of light bouncing off a lake… Recently while walking along the eastern shore of Lake Sammamish, I noticed...