A crystal oscillator is an electronic
oscillator circuit that uses the mechanical resonance
of a vibrating crystal
material to create an electrical signal with a very precise
This frequency is commonly used to keep track of time (as in quartz
wristwatches), to provide a stable clock
signal for digital
circuits, and to stabilize frequencies for radio
transmitters and receivers.
The most common type of piezoelectric resonator used is the quartz
crystal, so oscillator circuits incorporating them became known as
but other piezoelectric materials including polycrystalline ceramics
are used in similar circuits.
Crystal healing is a
medicine technique that employs stones and crystals. Adherents of
the technique claim that these have healing powers, although there is
no scientific basis for this claim.
One method is where the
practitioner places crystals on different parts of the body, often
corresponding to so-called "chakras";
or else the practitioner places crystals around the body in an
attempt to construct an "energy grid", which is purported
to surround the client with healing energy.
Despite this, scientific investigations have not validated claims
that chakras or energy grids actually exist, nor is there any
evidence that crystal healing has any greater effect upon the body
than any other placebo.
This can now be tested with the
technology of kirlian photography. One of the reasons for our request
for help in the purchase of this research equipment.