Posted on 03/31/2016 10:29:32 AM PDT by Red Badger
No kidding. But they can’t be scaled, so their application is quite limited.
Not really. PMM1's and PMM2's were simply very bad ideas they finally caught up with. They're still awarding patents for lots of bad ideas and things that really aren't patentable. It's a shame the system is so broken.
awesome, enjoy
You’re Very welcome- glad someone could make a modest profit off them :) It’s About time technology finally was able to pay for itself-
Yes heating a magnet will demagentize it. Some magnetic formulations can handle higher temps like SmCo.
This could be a big deal with locks and transmissions.
Way cool!
“Perpetual motion machines don’t, and can’t, exist.”
Nonsense. I invented a perpetual motion machine when I was a kid and traded it for my big brother’s endless water canteen. Yes, the canteen worked until rust attacked the bottom of the canteen and the endless water leaked out.
My mother gave our son a big magnet from a radio some years ago. The kid was playing with it and put it up to our old Zenith color TV. All the colors reported to the spot where he pointed the magnet.
Pretty sure they are imprinting magnetic fields as pixels onto a sheet of NIB using microwave induction to heat a spot in the material then creating a strong magnetic field then cooling that spot to set that field into the NIB. They can create patterns of north and south poles onto the face of the magnet.
You haven’t been corrected, chastised, lambasted, or nagged by my wife.
yet.
Neat.
I didn’t say that, but theoretically I believe in it.
That is really not an accurate statement. The applications for permanent magnet motors is almost unlimited. They are more efficient than induction motors and can be designed with other advantages as well such as precise speed control and torque curves. This is why they are used frequently used in machine shop equipment.
Their primary disadvantage is that they are in general more complicated and expensive to design, maintain and manufacture than other types of electric motors. You are correct however that in general the larger the device the more that this limitation becomes a factor.
As an example I worked for many years as a millwright in a small family owned lumber mill. The very large large bandsaw we had which was known as a “resaw” had a 50hp three phase induction driving the big blade. Ours had a 3hp three phase variable speed motor driving the feed rollers. In our case the feed motor was actually a single speed induction motor and the variable speed was provided by adjustable diameter pulleys inside the assembly. It works but it is complicated and large and not very precise.
If one had a machine that needed more precise control over the feed speed it might be much more prudent to choose a motor which actually had variable speed and a good torque curve over a wide range of speeds. This is why variable permanent magnet motors have become very popular in machine shop applications. Instead of having a complicated setup with gears and pulleys in a computer controlled milling machine, in many cases they can substitute a variable speed permanent magnet motor instead.
“So no, there is no “free magnetic power ahead”. Perpetual motion machines don’t, and can’t, exist.”
Well, I guess that settles it then. Everybody go home!
What I find particularly annoying about these remarks is the assumption that man knows it all. Which is total bunk. I watch this “Universe” show and others like it, and what is shown is spewed out to the viewer as fact.
What they should, and you should, add to such statements is, “based on science as we currently understand it.”
There _are_ some basic knowable truths about the universe. To deny them via “well, we don’t know everything” is to deny objective reality, and so lead to ultimately denying your own existence.
No, mankind doesn’t know it all. We CAN know a lot, with our ignorance being mostly about the fringes rather than about the major components. Your 10 seconds of thought about some subjects just doesn’t negate 10 millennia of scientific analysis. Yes, “based on science as we currently understand it” is a given which need not be repeated ad nauseum. Much of that science also isn’t likely wrong either; we know for certain that the Moon isn’t made of cheese, that Voyager 1 has gone a very very long way, that the observable universe doesn’t fit within a 10,000 light-year radius, and a whole lot of other facts which really aren’t up for debate despite what you saw and disagreed with on a TV show.
Not being absolutely completely sure about something doesn’t automatically mean there’s a nontrivial chance that we’re completely wrong about it, nor does it mean we should flippantly disregard what a lot of people have studied for a long time and concluded based on objective imperical facts. Simply having an opinion doesn’t make it equally valid with those of others.
One thing we do know, after centuries of earnest attempts and lots of informed discussion & study of the subject, is that “perpetual motion machines” don’t and can’t exist. This is one subject which, along with many others in science, fit the model of “if you don’t agree, go think about it until you do.”
So: if you don’t agree that perpetual motion machines don’t & can’t exist, go think about the subject until you agree.
They’re already using magnetic bearings in large motors. The armature shaft ‘floats’ in a magnetic field, never touching the bore. No wear.
Yes, a programmed magnetic key!.....................
So, explain the scene in Daniel chapter five with your objective knowledge of the Universe. Sgt Hooper is correct to cite this human arrogance, to believe we right now have the final answer of the most fundamental truths of the Universe.
Meant to ping you since I named you. Sorry
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