Apparatus:
stand
with
metal
bar,
ball
bearing,
card
Description:
A
cleaner
version
of
the
old
"pull
the
tablecloth
from
under
the
dishes"
trick.
Put
the
card
under
the
ball
bearing
on
the
stand.
Pull
back
the
metal
bar
and
release.
The
bar
will
flick
the
card
out
from
under
the
ball
bearing
without
disturbing
the
ball.
PIRA 1F20.34