|MadSci Network: Biophysics|
Well, That's an interesting question. I would like to mention that all that runs on batteries/cells is exactly analogous to our body. If we see that the smallest unit of our body is a living cell (animal cell to be precise) and there are various chemical ions like Sodium, Potassium, Chlorine ions inside the cell in the shape of cellular fluids (inter-cellular as well as intra-cellular). The cells inside the body have a potential of -0.60mV to 0.90mV when at rest and the potential increases to +0.20 when agitated. It is the distribution of these ions which give rise to the ionic current and hence the required excitation is achieved. So on the same lines we have all something like dry cells or other sources of voltage in our bodies. So in short we can say that the existing cars that run on batteries are also somewhat similar to the mechanism of our body that produces some voltages at various parts/tissues. But I have not come across any information about a car exactly as you have asked. Thanks Note: One of the drawbacks to a biologically powered car is the amount of biological material it would take. Look at the horsepower of even a small car and notice that it is many times the power of a horse! We don't know how to miniaturize a horse, so it would take something the size of many horses to power a standard car, if it was all biological material. So, mechanical engines will probably not be replaced. They are smaller and plenty efficient to do the job. -- Bill Reisdorf -- MadSci Moderator, Biophysics
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