Hot Water Rockets
A hot water rocket (or steam rocket) is a water rocket which uses hot blast water as its propellant. Water is kept in the rocket under pressure, at below its boiling point at that pressure. As it exits through a rocket nozzle, the pressure drops and the water instantly boils and expands against the nozzle and this greatly increases the exhaust speed and thrust.
The idea of such rockets was conceived by Germany before the Second World War, with the suggested use of an alternative rocket engine for launching fighter jets.
Read more about this topic: Water Rocket
Famous quotes containing the words hot, water and/or rockets:
“Did you know, Putnam, that more murders are committed at 92 Fahrenheit than any other temperature? I read an article once. Lower temperatures, people are easygoing. Over 92, it’s too hot to move. But just 92, people get irritable.”
—Harry Essex (b. 1910)
“But sound of water over a rock
Where the hermit-thrush sings in the pine trees
Drip drop drip drop drop drop drop
But there is no water”
—T.S. (Thomas Stearns)
“The Thirties dreamed white marble and slipstream chrome, immortal crystal and burnished bronze, but the rockets on the Gernsback pulps had fallen on London in the dead of night, screaming. After the war, everyone had a car—no wings for it—and the promised superhighway to drive it down, so that the sky itself darkened, and the fumes ate the marble and pitted the miracle crystal.”
—William Gibson (b. 1948)