nd 0.6V [@taylor2015physarum]. When 9.4kOhm external load is connected, the voltage drops to 0.2V in the control fuel cell and 0.25V in the Physarum fuel cell. During 7 days of experiments power generated by the Physarum fuel cell was 12.5–15 $\mu$W and power generated by the control fuel cell 10–11V [@taylor2015physarum].

Biodiesel production
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This is not about computation, sensing, actuation or analog physical modelling. But we included this section because future unconventional devices will need energy. Biodiesel is a liquid fuel made of vegetable oil or animal fat and used in compression-ignition engines. It is produced by a conversion of a carboxylic acid ester into a different carboxylic acid ester by reacting lipids with an alcohol producing fatty acid esters [@ma1999biodiesel]. Biodiesel is advantageous to fossil fuels because it is biodegradable and has low toxicity. However, biodiesel is expensive to produce: cost of raw material is 2/3 of production costs. Slime moulds have relatively high concentration of lipids in their bodies. Thus they could be a good alternative to existing technologies of bio-mass production. *P. polycephalum* is found to be a champion, amongst *Myxomecetes*, in lipid production [@tran2012evaluating]. Physarum produces equivalent of 65 g of dry biomass and over 7 g of lipids per litre of culture medium in four days [@tran2012evaluating]. The biomass production rate exceeds that of algae [@chisti2007biodiesel]. Tran et al [@tran2015evaluation] show that cultivation of Physarum on 37.5 g per litre rice brans yields 7.5 g dry biomass and 0.9 g lipid in five days.

Arts
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Music generation
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Physarum expresses its physiological states in patterns of its electrical potential oscillators [@adamatzky2011electrical]. In [@adamatzky2009music] 5-10 days recordings were processed and converted to sound track by mapping parameters of electrical potential oscillation to pitch, attack and duration of tones. First ever sound track was produ