These snowflakes are generated randomly by a technique called Brownian tree growing. Daniel Shiffman did this in one of his Coding Challenges. I am quite impressed by the manifold structures that develop by this relatively easy method.
You can find the source code in this codepen:
https://codepen.io/Grilly86/pen/BaaOKzv
https://codepen.io/Grilly86/pen/mzGEmR
Move the cursor over the Mandelbrot-set and you will see the corresponding Julia-set beneath.
The human ear has very strange abilities. An example of this are so-called binaural beats. The unusual thing is that there are actually no real beats happening at all!
The left and the right ear are listening to sounds of slightly different frequencies. From the difference of the frequencies (in Hz) then results the frequency of the beats. For example, if the left ear is exposed to a 440 Hz tone and the right ear to 439 Hz, then this difference results in one binaural beat per second (1 Hz). At 438 Hz for the right ear, the frequency doubles to 2 Hz.
The effect works similarly when the sounds are output through speakers. However, physical overlays and interferences – (ie beats) – are actually happening here. The crazy thing about binaural beats from headphones is that there is not really that superposition of sounds. Each ear hears a continuous sound at a constant frequency.
The beats seem to arise only during processing in the brain.