In other words, ignorance is bliss. But ignorance will not change a thing! Actually I think anecdotal thinkers suffers too. And one thing is for sure, anectotal thinking patterns is the root cause of a fair amount of how this world runs.

If you apply 1 bar pressure?

Yup, thats why it says a "tube". 36000 km long tube of pressurized air. No more insane then a 36000 km long "tower" into space. By all means we should do some plumming and pump water upp there, but I guess air may do better. The principles of trees sucking water upp without any applied pressure could very well be something worth a look. Id like to see the job description for the plumber!

Well, solar cells pumping air thorugh tubes sure consume less energy then lifting tanks with rocket fuel up there constantly. A solar cell driven air tube thing is totally self sustaining. Just like the rest of the elevator principle. Thats sort of the essence in the whole concept.

Why not went air thorugh the tube to as a correction mechanism? No need for rocket fuel in a structure reaching up from the ground, just blow air. Hell, we even do need air up there for life support and other things. Air supply could even be used to produce rocket fuel in space.

Listen to the words of Peter Schiff who predicted this mess. http://www.youtube.com/watch?v=r5ifr0iskSc