self-contained.
Description:
A
magnet
is
dropped
from
a
height
along
tracks
of
different
metals.
2
magnets
are
included.
Try
to
keep
these
magnets
apart,
as
they
are
quite
strong,
and
are
hard
to
get
apart.
self-contained.
Eddy Current: Magnet Races
self-contained.