> build a small furnace with an exhaust that can shift a propellor shaft. The Aeolipile was described shortly before the common era, but it took another 1600 y

> build a small furnace with an exhaust that can shift a propellor shaft. The Aeolipile was described shortly before the common era, but it took another 1600 years before anyone could build a steam engine capable of real work. https://en.wikipedia.org/wiki/Aeolipile https://en.wikipedia.org/wiki/Aeolipile