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First of all I wanted to find a way not to harm the plant that much. Because most of the conductive metals are reacting with the plant itself causing a poisoning. Therefore I tried to find out the specifics of graphite as a non reactive invasive electrode to measure (whatever) inside the plant. During my research I found a very nerdy, fetish article about a pencil IBM merchandise as a part of the | First of all I wanted to find a way not to harm the plant that much. Because most of the conductive metals are reacting with the plant itself causing a poisoning. Therefore I tried to find out the specifics of graphite as a non reactive invasive electrode to measure (whatever) inside the plant. During my research I found a very nerdy, fetish article about a pencil IBM merchandise as a part of the [http://www.lexikaliker.de/category/bleistifte/page/36/ IBM Electrographic (you need to scroll down, after all the pictures is finally the article)]. The next step was to find out by myself which degree of hardness would be best in its conductive characteristics. So I did the same experiment as shown in the article and found out the softer the lead, the better is its conductivity. This has to do with the way graphite lead is manufactured. The specifics of carbon/ graphite you can find [http://www.chemie.de/lexikon/Kohlenstoff.html here] (it is in german). | ||
The next idea was also to measure on the surface of the plant, so I just ordered some electrode pads with a layer of silver and carbon. [https://tens-ems.com/tens-elektroden/elektroden-5x5cm-karbon-silber-beschichtung here is a link to order it] | The next idea was also to measure on the surface of the plant, so I just ordered some electrode pads with a layer of silver and carbon. [https://tens-ems.com/tens-elektroden/elektroden-5x5cm-karbon-silber-beschichtung here is a link to order it] | ||
== What to measure == | |||
When I finally had attached the electrodes on the surface and inside the plant, I found out it is not so easy to understand what are the values displayed on the multimeter. For sure it shows us a value in voltage and it is also possible to measure the resistance of this organism, but what does it say to us? A signification (what I want to do finally) is a scientific instrument to hear invisible processes going on. One of the most famous signification is the Geiger counter and it sonify the radioactivity or better say the decay rate of a radioactive element. So a sonification shows us a specific process. What are the processes belonging to electricity inside a plant that are usable for a sonification? Another question that came up, was how is it possible that there is no measurable current inside the plant? If we take the formula for calculating the resistance: R = U/I it would lead us to the point that there could be a mathematical problem: division by zero. But at least we can calculate that little amount of current by convert our formula to: I = U/R. | |||
The next phenomenon that I observed by the experiments of what to measure was there are no constant values. Sure, a plant is a living organism and therefore it changes electrical values because of a intercellular exchange of information. But the values for resistance for example rises till the end of the scale when it is measured. At the same time the organism seem to be "charged" with a rising voltage. The question is why this is happening? | |||
Here are some examples for the setup that I used: | |||
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