A HOT-AIR ENGINE.
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https://hackernoon.com/a-hot-air-engine
#popularscience #educationalliterature #hackernoonbooks #projectgutenberg #archibaldwilliams #ebooks #thingstomake
https://hackernoon.com/a-hot-air-engine
Hackernoon
A HOT-AIR ENGINE. | HackerNoon
The Water Circulation.—The water chamber is connected by two rubber tubes with an external tank.