a reply to: Harte
My friend, I know very well how the piezoelectric effect works.
I wasn't saying they got their power from the piezoelectric effect, I was saying they got a majority of their power from the Sun. What they did with
the light from the Sun after that is where things get funny.
My original post was about Electric Discharge Machining (EDM), and I was talking about how one can get a fairly decent electric discharge from large
piezoelectric stones, or even pyroelectric stones. However it's much more advanced than that.
Chemistry is basically the study of the interactions between electrons of atoms. How materials bond together is dependent on the electron
interactions. How well those materials conduct electricity is also dependent on how the electrons interact. The electrons even determine if the
material is ferromagnetic, diamagnetic, or paramagnetic and all materials are one of those three.
What many fail to realize is that electrons are just tiny magnets. If you know how magnets behave, then you know how electrons behave for the most
part. You know how protons and neutrons behave too, because they are tiny magnets as well. Atoms and molecules are just various clumps of magnets in
different shapes. So let us think about some attributes of magnets...
- Their magnetic strength combines when they are added together.
- They are always attracted towards the highest strength / closest magnet in the area.
- They follow the path of least resistance / repulsion.
- A material can become magnetized with direct current.
- A magnet can be demagnetized with alternating current.
- Their magnetic fields can be decreased.
- Their magnetic fields can be increased to their saturation point.
- A magnet can induce magnetism in a non-magnet.
There are quite a few more special ones, but these are the most important to consider.
Before I continue, lets talk about cold welding
. Or more importantly,
. Where materials can completely bond/weld together without fusion/melting point heat. With cold welding, if the materials are both the
same type, and they were completely cleaned from any oxidation, and in an environment that prevents oxygen from entering, those materials have no way
of knowing they are not two separate entities. So they weld and click together like they were made of billions of tiny attracting magnets. - It's
quite the problem for satellites and spaceships.
Ultrasonic welding is where high-frequency vibration (sound) can weld materials together with very little heat, and no melting points need be
attained. With metallic materials it works by dispersing the surface oxidation. It works especially well for dissimilar materials, which is key. So
what can you do if you perfected cold welding or ultrasonic welding?
You can cold weld rocks... you can make natural looking rocks.
You can take piles of broken up little pieces of fairly similar granite and other filler, throw it in a box or casting mold, perform the magic step
that removes the surface oxides and simultaneously removes the surrounding oxygen, and then abracadabra! You have one solid stone, and probably one
you can't move when you're done. All the various types of crystals in the rock randomly welded together without heat, and looks like a solid block of
natural stone. You can even add more to it later if you wish.
If you wanted, you can make stones that can't be found on this planet naturally, and people would think its a meteorite. Or you can make
So now that I revealed that... What do you think the opposite of cold welding is?
. There are many interesting ways to dissociate and or decompose
materials. Just like there are many different ways to pull apart a handful of magnets stuck together (hint: use a stronger magnet). Other ways such as
acid and electrolysis are probably what you are most familiar with. But lets think about cold welding again. One important step in cold welding is to
remove oxidation. So what happens when you add oxidation?
Oxidation is the loss of electrons. You can increase the oxidation state (degree of oxidation / loss of electrons) in a material. You know what
oxidation is... its rust. It decomposes the material, breaks it apart... Fire is also a form of rapid oxidation. So that goes without saying that rust
is a very slow fire, a secret fire
So how and why does oxygen take electrons away? What is another way for atoms and molecules to lose electrons? You should know this Phage, with all
your foot dragging and photovoltaic replies. Yes, you can just take electrons away physically, or you can repel them away with light, or you can take
them away chemically like in a battery. There are other ways as well...
This brings us to electrochemical machining (ECM)
which is very similar to the
previously mentioned EDM only with no thermal or mechanical stresses being transferred to the part, and mirror finishes can be achieved. This
processes is often referred to as "reverse electroplating" because it removes material instead of adding it. Both methods (EDM and ECM) have their
pros and cons, but both work in similar fashion in regards to electrons being tiny magnets.
However, there is another better way that is much more efficient and doesn't have a wikipedia page because it's generally regarded an invaluable and
treasured secret. It is like EDM but with much less power required because it uses the power of resonance. It uses light. With it, you can cut stone
like butter, scoop it like ice cream, and form it like putty.
I must change subjects now...
I'm certain you have seen tiny piezoelectric transducers in microphones, BBQ and stove igniters, and even electric drum sets, and you know some of
those put out a nasty little spark. But have you ever seen one the size of a small car? Imagine how many electrons can be squeezed out of that.
Now imagine a very large piezoelectric stone sandwiched between other very large stones. Now heat that piezo stone... What happens? Well, the stone
expands and creates pressure around it. Since the stone is so large, it takes a long time to heat the rock to its fullest, and there is a very long
period of expansion and pressure. Which equates to a long period of electric current. So long of a period that it's practically DC if you looked at it
in an oscilloscope. When you let the stone slowly cool down, over a period of time you have DC in the opposite direction. Overall the entire heat and
cool cycle generated AC at such a low frequency that it looked like DC at smaller sample intervals
This a good read:
Voltage generation of piezoelectric cantilevers by laser heating
I'll be back.
edit on 21-3-2019 by More1ThanAny1 because: (no reason given)