I just ran across this interesting thread, discussing the possibilty (or not) of a Space Elevator. One of the contributors, an “nhughes1” (who states that he is a long-time Aerospace Engineer) declares that a Space Elevator is flatly impossible. The last post on the thread is nearly 9 months old.
I’m not a Physics major, so I can’t comment on his calculations. I wish I knew his email address – I’d refer him to the Edwards / Westling book and ask him for his comments.