Comments by "g simpson" (@GSimpsonOAM) on "PeriscopeFilm" channel.

  1. Shell being the major sponsor may have had a bearing on them glossing over that.
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  2. Not bad for internal combustion. Even considering electric cars though. There are many losses along the way. At generation, transmission, storage in batteries, speed drives and the motor.
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  3. In the Victorian era the thermodynamics were well understood. The diesel cycle was designed with a PV (pressure/volume) diagram with a different form to the Otto (petrol/gas) engine and would be theoretically more efficient and turned out to be so. https://en.wikipedia.org/wiki/Pressure%E2%80%93volume_diagram
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