Here's why:
* Steam engine development was gradual: Steam engine technology evolved over centuries, with numerous inventors and engineers making significant contributions. It's unlikely one person could claim such a revolutionary breakthrough.
* Efficiency varied by design: The efficiency of steam engines depended heavily on their design, fuel used, and operating conditions. It's challenging to compare engines across time periods and different purposes.
* "Significantly cheaper" is subjective: What constitutes "significantly cheaper" depends on the context. Cost comparisons across eras and technologies are difficult.
However, some notable individuals and periods of innovation in steam engine development include:
* James Watt (1736-1819): While not the inventor of the steam engine, Watt's improvements significantly increased its efficiency and practicality.
* The Industrial Revolution (18th and 19th centuries): This period saw rapid advancements in steam engine design, with many inventors and engineers contributing to improvements in size, efficiency, and cost.
* Later developments: In the late 19th and early 20th centuries, further innovations, such as compound engines and turbines, led to increased efficiency and smaller size.
To find more specific information, you'll need to provide:
* A time period: When did this "40% more efficient" steam engine exist?
* Specific design features: What were the key differences in this engine's design compared to standard engines of the time?
With more information, we can explore potential candidates and their contributions to steam engine technology.
