Model steam engines have intrigued hackers and makers for over 100 years. Many of us have seen old steam engine models up for sale at garage sales and various internet auction sites. The problem ...

The model is based on a 2500 horsepower triple ... If you’d prefer your steam engines to have real-world applications, though, make sure to check out this steam-powered lawnmower.

Q: Why are the flanges on model steam engine drive wheels so much larger than on the prototypes? Is it because the models don't weigh very much? Or is it because they have to navigate tight curves?

These two geniuses were the first to transfer heat energy into useable power using steam engines. Mark Miodownik shows a working model of a steam engine originally made the blacksmith Thomas ...