Pulley diagram with 2 composite pulleys
<ul><li><a href="//commons.wikimedia.org/wiki/File:Four_pulleys_FH.svg" title="File:Four pulleys FH.svg">Four_pulleys_FH.svg</a>: *<a href="//commons.wikimedia.org/wiki/File:Four_pulleys.svg" title="File:Four pulleys.svg">Four_pulleys.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Prolineserver" title="User:Prolineserver">User:Prolineserver</a>, <a href="//commons.wikimedia.org/wiki/User:Tomia" title="User:Tomia">User:Tomia</a>. <small>(minor edits by <a href="//commons.wikimedia.org/wiki/User:Ss181292" title="User:Ss181292">Stanisław Skowron</a>, scale adjusted by <a href="//commons.wikimedia.org/wiki/User:Atropos235" title="User:Atropos235">User:Atropos235</a>)</small></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:StromBer" title="User:StromBer">StromBer</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:StromBer" title="User:StromBer">StromBer</a></li></ul>
CC BY 2.5
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