Apparatus:
stereo,
speakers,
phase
reversal
switch
Status:
partially
under
construction
Description:
This
demonstration
illustrates
constructive
and
destructive
sound
interference.
Setting
the
faces
of
the
speakers
together
and
flipping
the
switch
to
'out
of
phase',
move
the
speakers
apart.
The
produced
noise
sounds
like
a
jet
taking
off.