A "Blake's Hydram" <a href="https://en.wikipedia.org/wiki/Hydraulic_ram" class="extiw" title="en:Hydraulic ram">en:Hydraulic ram</a> at the <a href="https://en.wikipedia.org/wiki/Centre_for_Alternative_Technology" class="extiw" title="en:Centre for Alternative Technology">en:Centre for Alternative Technology</a>.
Nikon 5700, by <a href="https://en.wikipedia.org/wiki/User:William_M._Connolley" class="extiw" title="en:User:William M. Connolley">William M. Connolley</a>, August 2005.
The original uploader was <a href="https://en.wikipedia.org/wiki/User:William_M._Connolley" class="extiw" title="wikipedia:User:William M. Connolley">William M. Connolley</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.