The start of the sub-series dedicated to Avi. Some kind of "smoking a small universe" if you like, which evolves from chaos to chaos as the time passes by. Any comments wouled be very welcome.
Thanks a lot for the nice comment, Andre! Perhaps one of the reasons why I get my pipe and smoke is exactly that effect, you describe so well.
About the movements, they can really be unpredictable though there are physical reasons behind them. This is another chaotic phenomenon. The way the movement happens has a reason (it is causal) but not predictable (not determined). Which means that the crystal clear and simple physical laws for each single moving particle get combined to something that has unexpected properties. The coupled simple rules result into an unforseen complexity of phenomena that is not contained within the single formulae you start with - so to speak. An infinitesimal small change of some properties (weight, speed, etc) of even one of those many particles at the start can have a very bug impact to the evolution of the whole. (Chaos.)
So, to produce compexity and diversity only some few small rules are needed and the rest is just coupling many of them. The world is very simple on the level of individual phenomena but the combination of all them makes for example the unpredictable and yet recognizable (!) patterns of the fur of a tiger. A single pigment particle in that fur is fully determined - its state is completely known at every time. You just put the numbers into the variables of some formula and voila! Even if you made some little mistake about the values of those variables, the result will be "just a little false" but still very close to the real result. But the state of all the pigment particles together that form the whole pattern of the tiger's fur is undetermined. An infinitely small mistake in the value of a single variable may produce a completely different pattern on the fur, and soon the tiger is a leopard. And we shouldn't annoy the tiger, ey? ;-)
Hi Nick, This type of smokey abstract has a very soothing effect. Chaos that is easy on the eyes. I like the series. The movement of smoke is always intriguing. The movements seem so random and unpredictable, yet we know there has to be a physical explanation for every pattern produced. An example of just how complicated the world can be. Andre
So this is how we call those shapes in Englisch? They are eddies? Nice to know, thank you very much! I have used the word "vortex" up to now, but this sounds too... scientific tome.
0 
