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NASA news: Astronaut's stunning picture shows robotic arm grabbing a SpaceX Dragon capsule

NASA news: Astronaut's stunning picture shows robotic arm grabbing a SpaceX Dragon capsule 1

“Just as a human arm lifts heavy objects, the Canadarm2 uses its joints to create a flexible range of motion, rather than merely moving up and down.

“In the ISS crane, there are three joints similar to shoulder joints, one elbow-like joint, and three wrists.

“Depending on the task it is performing, Canadarm2 moves at variable speeds.”

When unloaded, the robotic crane moves at a sluggish pace of just 1.21ft per second.

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When the Candarm2 was used during the space stations’ assembly, the arm moved at an even slower pace of just 0.79 inches per second.

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