Detail view of the rack switch of the Wengernalpbahn at Kleine Scheidegg, seen
on 20 March 2002. Good visible are the movable parts of the rack that form a
steady line of teeth about the fixed rail.
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>