Re: Emergency measures?
"I am surprised that there's apparently nothing on t'net that describes the construction sequence of the Arecibo Radio Telescope"
This might help: https://www.naic.edu/ao/photos ... takes a while to load, but it has some good pictures that might help people visualize the scale of this thing. It is not a toy. Scroll down to see B&W pics of it being built.
For the lazy, clicky-clicky.