Laying of ducts for fiber optic cables (orange) using the soil displacement method in Mannheim-Almenhof (Germany). The soil displacement hammer, also called earth rocket or mole, to which a compressed air hose is connected at the rear, arrives from the right in the target pit at the worker's feet.
Hubert Berberich (<a href="//commons.wikimedia.org/wiki/User:HubiB" title="User:HubiB">HubiB</a>)
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>