Is it true those propellers on the "wind driven generators" are really used to increase the earth's rotation?
338620
Excellent question.\n\nBut Bush and Cheney have got it all wrong again - the turbines are facing the wrong way and the earth is slowing down.\n\nWould write more but I'm off the invent a 25 hour clock.
713460
from the electric scouce to the motor electric current (flow of electrons in one direction),\nin the motor\n\nelectric current interfears with magnetic flux thus pushing the rotator away since it is fixed to one point it rotates trying to move away(like the way like poles repell) thus the energy changes from electric to mechanical through elecromagnetic.\n\nthen when the fan rotates (notice that the propellers are curved so as to scoop air molecues pushing them forward creating a kind of vaccum that is imediatley filled then the same procces is repeated creating wind not concention ) \nif it were convention it would require change of temperature and this only applies the principle of pushing air (like a pedal pushing water only that it is air the propellers are pushing)
481150
the earth spins at 1500 mph.  If you take a ball and spin it extreemly fast you will find that the center of the ball will grow and the poles will flatten.  It is like driving a car very fast.  The higher up ion speed you go the lower to the ground it will become.  I has to do with Volocity.
267202
Yes, we can and we do.  We used both the moon and the Earth's energy to help propel the Apollo spacecraft around the moon.  Gravity is actually what keeps satelites in orbit around Earth.  \n\nHowever, to be able to harness enough energy to power cities?  Probably not.  Perhaps we can harness the ocean's waves (which is caused by the moon's gravity) into some electricity, but without some major advances in technology, I don't think we would be able to make it worth the effort.
599950
Are you looking for something like this, a homemade wind turbine to generate electricity?\n\nhttp://www.otherpower.com/17page1.html
1069085
I would say expect more wind farms in the future.   The generators used in wind applications are becoming lighter, cheaper and more efficient.  Check out other alternative energy concepts in the Popular Science article linked below; they are all viable options with today's tech and pretty darn cool.\n\nAlso, alternative energy is becoming a popular topic in the minds of people worldwide, so I expect the demand for alternative energy to increase.  Heck, just look at the many questions on Yahoo Answers asking about home-built alternative energy sources such as windmills, solar panels, etc.  I'm excited as well about the fundamental shift in energy production that is likely going to occur in the near future.
364601
If that direction were opposite the direction of the \nearth's rotation, I think the answer is theoretically yes.\nIn reality there's not enough mass of people relative to the mass of the earth to have any effect.
748326
The fuel should increase to take the load. My experience is on turbine generators, one was 9 mega. WATS.
146543
http://www.motherearthnews.com/library/1986_July_August/The_Basement_Built_Wind_Generator\n\nthis might help
1146635
Its mostly because of aerodynamics.With the Present propulsion method we cannot device those aircraft.Primarily circular aircraft shud rely on air for lift and it cannot take off as easy as normal one used now.\nMoreover Manoeverability cannot be achieved to the max with present technologies.\nBut who know it might be real one day..we cud have them.
1161674
Yes, you can, or more usually they turn themselves off when the wind gets too strong.   The power generated from the wind goes up as the cube of the windspeed.   So a 40 knot wind doesn't generate twice as much power as a 20 knot wind but 2x2x2=8 times as much.   So a fairly strong wind is too much for a wind generator to handle, and to prevent damage it automatically feathers the blades.   That is, it turns them parallel to the wind, so they don't turn.
916842
I have a small wind turbine which uses permanent magnets instead of a field coil.  The main benefit I can see is in keeping the electronics on the ground.  As the wind speed increases, the output voltage (and power) from the generator will increase as well.  I have a shunt regulator at the batteries to prevent overcharging.  Everything outside on the tower is very simple and less likely to break.  Other than mechanical breakdown, repairs to the system can usually be made on the ground level.\n\nOn a gasoline powered generator, sometimes permanent magnets are turned inside the AC output coils.  This eliminates the need for brushes and the voltage regulator board.  AC output coils have been designed to supply 120VAC at 3600RPM.  If the engine speed changes, the output voltage will change as well.  Output voltage will also change with load variations.\n\nI have more generator information online.\nhttp://members.rennlist.org/warren/genfaq.html\nhttp://members.rennlist.org/warren/generator.html
1140879
Wind turns the propellers, which is connected to a turbine engine that converts the wind energy to electrical energy. I believe it is stored by batteries sometimes, or more commonly it is tied into the power system that it is associated with. Typically seen on farms because of their proximity to traditional power sources. Wind mills make it convenient because in the plains, there is an abundant source of wind.
71764
There is a perpetual motion machine in the Smithsonian Institute. I creates more energy than it uses. The key is to reduce friction to a level that keeps the spinning weights spinning while producing more energy. the one in the Smithsonian Institute does this but not on a scale that would be of use in todays world of high energy consumption.
526693
Yes. The FIELD windings (not the armature windings) of a generator quite often can over heat and "short" together, thus reducing the capable out put under load, no mater how fast the armature is rotated.
199267
well, i don't see why not.  if you made the thrusters such that the thrust was directed tangentially, that would cause the saucer to spin in a circle.  if you then added some kind of protruding airfoils (like helicopter blades) these would provide lift, but in the upward (axial) direction.  \n\nhowever helicopters can fly forwards and backwards by essentially tilting their rotors;  i don't see any reason why that wouldn't work in this case as well.
812955
This question is extremely open. There have been developments in marine machinery ever since the first man went away from shore on the trunk of a fallen tree.\n\nPlease provide more information.