A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel—the engine of the rocket—is usually a used plastic soft drink bottle. The water is forced out by a pressurized gas, typically compressed air. It is an example of Newton's third law of motion.
The term hot dog has been used in parts of Europe in place of the more common "water rocket" and in some places they are also referred to as "bottle rockets" (which can be confusing as this term refers to a firework in other places).
Read more about Water Rocket: Operation, Predicting Peak Height, Multi-bottle Rockets and Multi-stage Rockets, Sources of Gas, Nozzles, Fins, Landing Systems, Launch Tubes, Safety, Water Rocket Competitions, World Record, Hot Water Rockets, Bibliography
Famous quotes containing the words water and/or rocket:
“‘Tis not enough on roots and in the mouth,
But give me water heavy on the head
In all the passion of a broken drouth.”
—Robert Frost (1874–1963)
“A rocket is an experiment; a star is an observation.”
—José Bergamín (1895–1983)