Robotic arm
11 of 15 from Massive oil spill imperils Gulf Coast (images)
During the aftermath of the Deepwater Horizon accident, crews above the surface sent a remotely-operated vehicle (ROV) down to where the semi-submersible offshore oil rig's "blowout preventer" was located. The ROV has a robotic arm, which is seen here, trying to activate the blowout preventer.
April 29, 2010 4:16 PM PDT
Photo by: NOAA