I was thinking about how satellites can orbit the earth but not fall into the earth. Such is a bit hard for me to wrap my mind around, but I think I finally get it,,well maybe anyway. So I was thinking about how such might could be used for some form of energy generation. Like a perpetual motion machine, on earth I mean. If we spin a ball with something on it,,it falls off, but if we reverse the thinking like in how satellites orbit the earth. And we make an artificial gravity, say out of a magnet,,or magnets, and we spin something around it, at the right speed, then can we make a small version of what a satellite is doing around earth. But use that to keep the motor or generator or whatever moving around. Its a very interesting thought I think, and it may very well be possible, to make a perpetual motor in such a fashion, but as to could any load or drag be put upon it this I am not sure of. But even if it is only perpetual spinning and can not be used as a generator, this still is interesting. If you have not studied up on how satellites orbit the earth without falling into earth, then here is a link to one site I found somewhat understandable. http://www.physicsclassroom.com/class/circles/u6l4b.cfm (http://www.physicsclassroom.com/class/circles/u6l4b.cfm) But the thought remains, if a satellite can keep orbiting the earth, while at the same time attracted to earth, but moving forward and keeping a constant speed and forward motion with no added energy, then surely a motor or perpetual machine can be made to do the same. what do you think?
Hi Steve ..........I think that gravity is the answer to this question and many others ........everybody only looks at gravity as a pull force,.....it pushes too ,.......just like magnets............shylo
My point is it is the attracting force or gravity that keeps the satellite in orbit, thats what keeps it going around the earth. Its trying to travel in a straight line, like on the webpage I mentioned in the previous comment I made. But at the same time its also being pulled into or rather toward the earth, so its always following a curving path, or at least wants to as it falls toward earth, but it can never fall into earth, so it just keeps orbiting, going round and round. That is surely the key to a perpetual or free energy device, thats already proven to work on the large scale as we use the principal already with satellites. If it works on the large scale it will work on the small scale. Just an issue of making a smaller version accurately enough with something orbiting something else but being attracted to it as well,,just the same as a satellite orbits earth. At the correct speed, and distance,,then it keeps going around,,with no added energy needed. Real science, just use it on a smaller scale.
@stevendrd1,
Cool idea you have. You'd have to use a ring magnet with all one pole facing outward; the other pole would be at the inside of the ring. It'd be interesting to try and make work.
It wouldn't work with a load though. The load would slow it down, and just like with a satellite in orbit, it would fall into the magnet. Satellites don't have any load on them and so they keep their speed. As long as they keep their speed then they keep orbitting. Satellites that are in low Earth orbit do have a load due to the small amount of drag caused by the very smal amount of air at their altitude. That's why if satellites go too low then they fall to Earth. If you want lower the orbit of a satellite, just slow it down. If you lower the orbit into the thin upper atmosphere then it will have a constant drag/load and will continue to slow down and go lower on its own until it falls to Earth.
So to do it with your magnet you'd have to make sure there is no load. It'd have to be in a vacuum. You'd have to put the ring magnet flat with the object rotating around it so that gravity is the same at all points. Gravity would still tend to pull it down out of orbit so you might need another ring magnet above the orbit to balance with gravity.
-Steve
http://rimstar.org http://wsminfo.org
@All;
Spacecraft on orbit would allow much more time for a magnetic field's
force to integrate and affect an object's momentum. So it seems as
though gravity and friction (as well absolute temperature) actually play
a role in limiting the availability of appropriate implementation parameters
for a pure magnetic motor on the surface of the earth. It may be easier
to construct one in space. One could allow for a fairly massive object to
integrate in a magnetic field attraction mode for a long time then swap
the field polarity with a binary ballpoint pen clicker escapement type
mechanism, with physical time constants that are not available on the
surface of the earth.
:S:MarkSCoffman
As for carrying a load - wouldn't it just be a case of having the centripetal force equal the magnetic force?
Quote from: tomd000 on November 26, 2010, 05:46:36 PM
As for carrying a load - wouldn't it just be a case of having the centripetal force equal the magnetic force?
If you're talking about having perpetual motion while powering a load, any load would decrease the angular velocity which would decrease the centripetal force. To maintain it you'd need to do as much work as your load is getting out.
-Steve
http://rimstar.org http://wsminfo.org