Apparatus:
self-contained
Description:
with
a
student
volunteer
holding
both
handles
at
one
end,
extend
the
strings
such
that
there
is
little
sag.
Be
sure
to
bring
the
traveller
with
you
to
your
end.
Sned
the
traveller
sailing
over
the
heads
of
your
class
by
quickly
separating
the
handles
at
your
end
-
the
student
volunteer
will
return
it
to
you
by
separating
thier
handles.
The
Doppler
shift
will
be
apparant
to
everyone
in
the
room.
PIRA 3B40.10