Think of tags as like a book index where you find words and which pages they are on, the same principle applies here. Although it's taken a stage further so it might not be the word, but the subject, so for example if you're looking for things to do with fractal gradients for example. A tag may bring back posts with gradient files, as well as posts that discuss gradients, or tutorials about them.
Started off as an experiment with Jesus Sosa’s Lsystem variation, and then Robert Keen suggested a sky of sorts. So I added a starry background done with another flame. I’m posting the bottom half of the image here so you might want to play with the settings of the lsystem.
By Jesus Sosa From physics, we know the basic motion of a pendulum, the primary mechanism in the harmonograph machine, is sinusoidal. Both the x-axis and y-axis motion is delivered by pendulums, which means the basic equation for motion along each axis is a sinusoid.