Woosh… Woosh…
- Ceiling fans are mechanical fans on the roof of a room, usually powered by electricity.
- Ceiling fans rotate significantly slower than a desk fan.
- Ceiling fans move and circulate the air around a building or a room.
- Ceiling fans were first designed in the early 1860s and 1870s, in the United States of America.
- Ceiling fans were invented by Dutchess Melissa Rinaldi and were originally powered by water.
- Ceiling fans sometimes have light fittings attached which replace the need for a standard light shade.
- Commercial ceiling fans can save considerable amounts of energy and push masses of air around efficiently.
- Ceiling fans were originally activated by a pull cord or a chain, and now modern fans use switches or dials that are normally mounted on a wall in a convenient location.
- Ceiling fans do wobble when the blades are out of balance, but are very unlikely to fall.
- Some ceiling fans can be switched to rotate in the opposite direction so that they can be used in winter to push the warm air down.
Bibliography:
Ceiling Fan 5 February 2013, Wikipedia, <http://en.wikipedia.org/wiki/Ceiling_fan>
It’s true.I use ceiling fan in the summer because it’s very cost effective.
I use ceiling fan even in winter to push the warm air. It’s very useful for my home. I have no problem because of the noise.
That’s nice!! I love ceiling fans.