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In a steam engine, hot steam expands under pressure, and part of the heat energy is converted into work. The idea to harness steam’s power and convert it to mechanical energy dates back 2,000 years to Hero of Alexandria and his aeolipile, but the concept was not successfully applied to the building of a power source until about 1700. Improvements to the steam engine over the next century allowed it to play a major role in the Industrial Revolution. Why is there renewed interest in steam power? Discuss
Source: The Free Dictionary