SignalFailure
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Probably a daft question but here goes:
Given two engines of identical form made to the same tolerances and of the same materials but where one is twice the size of the other, would more steam or air pressure be required to run the larger engine? (ignoring starting the engine).
Given two engines of identical form made to the same tolerances and of the same materials but where one is twice the size of the other, would more steam or air pressure be required to run the larger engine? (ignoring starting the engine).