BBCNEWS BBC News December 30, 2021 19:24:00
And so i have full confidence that its going to work. unfurling the sun shield is the most difficult part of this process. its enormous, the size of a tennis court. first, its two halves are lowered into position. then the booms are deployed. the operation involves 400 pulleys, 400 metres of cabling and more than 100 release mechanisms that have to fire at exactly the right time. finally, the material is pulled taut, and the five layers of the sun shield, each as thin as a human hair, separate. ...
Source: archive.org