A Company Develops a Jet Engine for Boats Fired by Steam
A separate boiler heats water to generate steam, which is pushed at about four times normal atmospheric pressure through a hollow tube submerged in the water.
When the steam hits the water, it immediately condenses to 1,600th of its previous volume. The resulting effect is a dramatic drop in pressure — essentially a vacuum — that sucks water from the front to the back of the tube and thus produces thrust to move.
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