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In Reply to: RE: Hmmmm.....interesting posted by geoffkait on April 05, 2011 at 17:54:16
...for God knows what. They sell fused quartz for oscillators and they're called "Piezo Enterprises". I'm no rocket scientist, but here is a company that sells gizmos that are both piezo-electric and resonate.
I mean this could be, like, the Republicans reconciling their differences with the Democrats--they wiggle AND they're electrical! I certainly don't know. I'm strictly an empiricist. When it comes to theories, I gravitate towards explanations that seem to be at least marginally plausible. Right now I'm wondering whether quatum wormholes can account for the improvements I've heard in my stereo, but I really would prefer a simpler explanation. So far unclestu seems to offer the most thoughtful explanations of how this stuff works. Another reason for suspecting that piezo-electric involvement is that crystals' effects are nearly identical to my in-line RFI suppressor. To me, that is strong evidence, even though it's not proof.
Follow Ups:
I have no doubt whatsoever in what you hear. However data on piezo electricity is rather hard to come by in terms of a technical manual. It is usually confined to a footnote in some physics text.
The situation is even worse when investigating the electrical properties of crystals. Most books emphasize the the nature of the crystals , the coloration and other gemological properties, but not the electrical.
That being said the previously quoted text on electromagnetic waves by Johnk clearly states that it is presumed ( because not everything has been measured) that all materials are diamagnetic in nature, including a sheet of copper, germanium, etc. These are materials which are non magnetic at rest ( no electrical or magnetic field applied) but develop weak magnetism when the fields are applied.
This is based on the looser electron bonds in the outer shells of the material being temporarily dislodged and moved over by the applied field. Obviously, the fewer electrons in the outer shell ( using the Bohr's model) the more of this property is revealed. Obviously the movement of the electrons in the outer shell adds a vector to the magnetic field generated, however weak it is (10^-5 in the case of copper).
Stu
Stu
I experimented (8th grade?) in making a shaded pole motor out of an ALUMINUM pie tin. It spun nicely in a 60hz AC magnetic field.
What is the difference between diamagnetic and paramagnetic?
Too much is never enough
What is the difference between diamagnetic and paramagnetic?
Basically, paramagnetic materials have a very very weak attraction to an applied magnetic field while diamagnetic materials have a very very weak repulsion to an applied magnetic field.
Have you ever seen that superconductor demonstration where they show a magnet floating above a superconductor in a dish of liquid nitrogen?
That's because superconductors are highly diamagnetic.
se
I've done a SIMILAR demonstration using Aluminum.
An Aluminum ring is placed around the core of a simple electromagnet. The Electromagnet is plugged into 60hz ac.
The core, which is a separate piece and is longer than the coil by maybe 3" on each side is pulled to maximum extension on the high side and propped up using a wooden dowel rod. The core could be completely removed.....if you wished.
Anyway, with the core displaced and with the ring in place, apply power and the Aluminum ring shoots into the air. OR if placed into the field while 'on', will simply float. Pushing the ring down deep into the field and resisting the force pushing UP will result in the ring getting HOT. And I mean too hot to touch. The electrical resistance of the Aluminum coupled with the induced current...and more of it as you force it deeper into the field.
I did this in about '66 or maybe '67 at my 7th or 8th grade science fair. People didn't think aluminum was magnetic! Equally 'wowwing' of the crowd was the shaded pole motor...made from an aluminum pie tin.
Too much is never enough
Broadly, there are 2 types of quartz.
'Grown' or 'crystalline' is the first type and if you could see the atoms, most would be in nice rows and columns. see the link for some illustrations. There are areas of 'slip' and 'dislocation'. Nothing is perfect.
The second type of quartz is fused quartz. This is basically the first type which has been heated to a liquid and allowed to cool. Ultra pure quartz is used in certain industries because of its ability to resist many chemicals and it can withstand temperatures to about 1200c. (pretty darn hot).
Upon cooling the structure of the crystal no longer exists and it loses its piezo properties.
http://www.gequartz.com/en/properties.htm
BTW, Quartz is simple stuff...at least chemically. It is 1 atom of Silicon and 2 of Oxygen....SiO2.
Used in semiconductors it is an insulator between certain layers. Generically it is called 'glass' in the industry. But, it is a little more complicated than that since these units 'link' together to form more complicated shapes...the crystal.
I have dealt with both types of quartz. The crystal types will break along the lattice while fused quartz will just break into a million pieces.
Too much is never enough
...here's an article that talks about fused quartz with piezoelectric properties. The quartz that I used is cut from ingots of GE 124 fused quartz.
The sonic effects of these crystals are obvious to me and others who have tried them. It would be nice to know how the damned things work.
I have looked around more and found a single reference to piezo properties of fused quartz.
GE, the #1 maker (?) of fused quartz makes no reference to piezo properties on the datasheet..... but than again, why should they?
Do Shakti stones use single crystal or fused quartz in the manufacture? The patent which I have yet to finish reading has not so far been specific.
Too much is never enough
natural tumbled quartz in a fairly flat configuration
Stu
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