Apparatus:
mechanical
oscillator,
wire
loop,
function
generator
Description:
There
are
two
configurations
of
loops
to
choose
from:
parallel
to
the
floor
or
normal
to
the
floor.
As
the
oscillator
is
quite
delicate,
carefully
attach
the
wire
loop
and
unlock
the
piston.
Sweep
through
frequencies
with
the
function
generator
to
show
resonance
in
a
cricular
path.
This
demonstration
has
been
used
to
explain
how
wine
glasses
may
be
broken
with
sound.
When
changing
accessories
to
the
oscillator,
be
careful
to
lock
the
piston,
gently
change
the
accessory
and
unlock
the
piston
when
finished.
PIRA 7A50.40