2007-09-18 12:05:38 · 6 answers · asked by Nap 1 in Science & Mathematics ➔ Engineering
machines that rely on gravity. A machine that wouldn't work on zero-gravity.
2007-09-18 12:27:13 · update #1
I assume by your question you want to know examples of machines that use gravity as a power source for the machine. An excellent example of a gravity-driven machine is the waterwheel commonly seen in pictures from early American history. The waterwheel would be placed in a stream with flow coming into the buckets on the wheel at the top of the wheel. The weight of the water would cause the wheel to turn and then the water would be dumped as it came close to the bottom of the wheel.
Another good example of a modern gravity driven machine is the hydroelectric dam. The weight of the water behind the dam places the water at the bottom of the reservoir under high pressure. As high pressure is released from the dam it drives a turbine which is connected to a generator for generating electric power.
I am sure there are many more examples but I think these are two excellent examples of gravity powered machines.
2007-09-18 12:35:52 · answer #1 · answered by RED 4 · 0⤊ 0⤋
Virtually all machines are affected by gravity, but some such as roller coasters rely on it.
2007-09-18 12:10:54 · answer #2 · answered by aboukir200 5 · 0⤊ 0⤋
All machines use gravity.
2007-09-18 12:11:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I would say everything uses gravity in some way!
A hammer
A ladder
An eliptical machine
.....
2007-09-18 12:11:50 · answer #4 · answered by nicole m 1 · 0⤊ 0⤋
A pendulum clock?
2007-09-18 12:13:40 · answer #5 · answered by Paul in San Diego 7 · 1⤊ 0⤋
What are things that are exisiting? <-- vague question like yours
2007-09-18 12:10:31 · answer #6 · answered by I SLEEP TO DIE. 3 · 0⤊ 0⤋