Workers (center) in the Space Station Processing Facility, explain use of video cameras to members of the STS-100 crew (far left and far right) during Crew Equipment Interface Test activities. The cameras will be mounted on the booms and end effectors of the Space Station Remote Manipulator System (SSRMS), also known as the Canadian arm, and will give astronauts maximum visibility for operations and maintenance tasks on the International Space Station. Part of the payload on mission STS-100, the SSRMS is the primary means of transferring payloads between the orbiter payload bay and the International Space Station for assembly. The 56-foot-long robotic arm includes two 12-foot booms joined by a hinge. Seven joints on the arm allow highly flexible and precise movement. Mission STS-100 is scheduled to launch April 19, 2001 KSC-00pp1451