Open Thread: Water Light on Lined Paper

In the past we've looked at the shapes made by light passing through wavy or rippling water, and discussed the different but similar looking phenomenon of light reflecting off of such water to shine on, say, a ceiling.

Obviously that's only a tiny amount of what water and light can do together.

Here I give you what happens when you take the sun, a bottle of water, and a notebook, and then position them (quite accidentally in this case) in the correct places relative to one another.

The picture was taken on a moving bus, so it is not the sharpest image in the history of ever.

(Sorry the open thread is a day late.)

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We have special open threads set aside for discussing various movies, said discussions including plain text spoilers.  These are they:
   ● Avengers: Infinity War
   ● A Wrinkle in Time (2018)
   ● Black Panther

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Friday Saturday Recommendations!  What have you been reading/writing/listening to/playing/watching lately?  Shamelessly self-promote or boost the signal on something you think we should know about - the weekend’s ahead of us here, so give us something new to explore!

And, like on all threads: please remember to use the "post new comment" feature rather than the "reply" feature, even when directly replying to someone else!