Even before the Organic Rankine Cycle engine, there were very small piston engines being made and sold and that continues today.
I attended a demonstration of Summerhill biomass's soup can demonstrations like this one:
An asthmatic woman who could not tolerate heating by an old-fashioned potbelly stove was seated near the business end of the oversize blow torch without the slightest discomfort. A proof-of-concept model using finally powdered biomass "like natural gas" in an internal combustion engine had even been built and demonstrated at Syracuse University. I think it extremely unlikely any such engine will ever be built [unless Harry Schoell makes another ingenious mock-up ] but one should never be certain of what is possible.
My little sister spent some considerable time speaking to a gorilla in the San Francisco zoo. The gorilla speaks Italian sign language and types messages on a computer.
I asked my sister how the gorilla in the zoo compares with the gorillas one can find in most any bar. She said she didn't know since she never hung out at bars. Some scientist she was.
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