towards liquid-state-machine http://www.transmediale.de/content/medienwerkstatt-berlin-liquid-state-machine
1] magnetite ferrofluid
can be found in computer disk drive seals
“Ferrofluids can be suspended in water or in an organic fluid. A typical ferrofluid is about 5% magnetic solids, 10% surfactant, and 85% carrier, by volume. One type of ferrofluid you can make uses magnetite for the magnetic particles, oleic acid as the surfactant, and kerosene as the carrier fluid to suspend the particles.” http://chemistry.about.com/od/demonstrationsexperiments/ss/liquidmagnet.htm
eg. citric acid and light silicone oil/biodiesil
see also http://www.dansdata.com/magnets.htm#ff
a) use to 'measure' oscillations from Berlin Tempelhof wheel (eg. seal 10% in tube and fill rest with ethanol/isopropanol and attach to wheel)
b) diy field viewing film - apply to thin acetate/similar
Actual
saltwater antenna +
theremin schematic: http://www.thereminworld.com/pics/schematics/simple.jpg
= crude saltwater theremin supplying Herr Howse's paper cup AND logic gate model = a trivial machine nested together with a non-trivial machine whose function is not fully known = inverted, non-trivial machine in Von Foerster's terms.
ferromess and dendritic growths
mixing carbonates, metals and sulphates with acids
