This, like most other psionic topics, is widely debated. However it is well known that they DO work. The simplest answer is that nobody is really sure how they work, although there are many theories.
My personal theory (based off my own research, experience and theorising into late nights) is:
All things are made of energy, and energy resonates at particular vibrations. All things have a state of vibration. If you take a very powerful microscope, you will see that everything vibrates and moves on the atomic level. Because crystals are much more stable than a human body (or any creature's body), they are good at transmitting it. Also, as every crystal has a different vibration, and wavelength (which gives it its colour), they will each affect us slightly differently. When we have a cold, or get disease, our vibrations can be 'lowered'. The crystals raise them again. That is my theory on why crystals work.
In electronics:
Other uses:
Crystal are used for taking the work as transducers.
they are place on where mechanical vibration arise occasionally or majorly. when they get mechanical vibration they generate voltege on the opposite surface and this voltage passed to processing circuit for further processing.
Crystals have many used depending on the culture and type. Some are used for magical powers, some for luck, and some even are used for deodorant.
semi-conducting
Mostly coolmmonly used electronic editing tool
Most miscellaneous electronic components are used to accomplish or support the primary electronic functions of rectification, amplification, oscillation, and switching and timing.
The flat screen television is the most widely used electronic television used today.
I don't think an electric iron is electronic. Mica is used to insulate the plate from the heating element.
what is the president
Their conductivity.
They were made from synthetic quartz and were used for strict control of electronic oscillator frequency. I worked there from 1980 to 1987 in the development lab Ivor G6ATJ
Electronic cooking tools ( ex. Mixer , microwave, oven...)
The portable electronic device industry
Many types of crystals can be prepared in laboratory or industry.
X10 is X10 is an international and open industry standard for communication among electronic devices used for home automation.
According to critical acclaim, Joel R. Goheen is recognized as the Inventor of Electronic Ticketing in the Airline Industry, an industry where global electronic ticket sales (the industry standard) accounts for over US$400 billion a year (2007). See Patents for Electronic Ticketing Inventions in the Airline Industry.
Crystals
Joel R. Goheen is recognized as the inventor of electronic ticketing in the airline industry.[1] See Patents for Electronic Ticketing Inventions in the Airline Industry.
The electronic revolution had a great effect on the musical instrument industry.
Electronic commerce is an industry that is conducted through the use of electronics, most notably the internet. Electronic commerce isn't limited to only the internet, as it can also include the use of telephones, email, and social media.