What achievement did Augustin Mouchot showcase at the 1878 Universal Exhibition?
Answer
An engine that produced ice using concentrated solar heat
In 1878, Augustin Mouchot demonstrated that solar thermal energy could be captured and focused to drive a thermodynamic cooling cycle. By utilizing a concentrated heat source, he successfully produced ice. This event was a significant milestone because it established the foundational principle that solar power could be harnessed for cooling purposes, long before modern electricity-based solar refrigeration systems existed.

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