Y'herd thisun? 

“Nothing is impossible on earth; one must only discover the means with which it can be carried out.”

from Ways of Spaceflight, 1928 (NASA F-622) by Hermann Oberth

Cool O'Neill Colony Model


Cool O'Neill Cylinder!

Easy and very authentic.

Here's my post at

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Since 1997 a place for my stuff, and it if helps you too then all the better