
1) Canadian invention
Found on
https://www.crosswordclues.com/clue/canadarm

The Shuttle Remote Manipulator System (SRMS), also known as Canadarm (Canadarm 1), is a series of robotic arms that were used on the Space Shuttle orbiters to deploy, manoeuvre and capture payloads. After the Space Shuttle Columbia disaster, the Canadarm was always paired with the Orbiter Boom Sensor System (OBSS), which was used to inspect the ex...
Found on
http://en.wikipedia.org/wiki/Canadarm
No exact match found.