View Full Version : This is hard?

2004-Nov-10, 10:17 AM
Cloud cities? (http://www.orionsarm.com/gallery/Cloud_cities_on_Cumulous.html)

How do they work? They look cool though.

A Thousand Pardons
2004-Nov-10, 11:02 AM
Cloud cities? (http://www.orionsarm.com/gallery/Cloud_cities_on_Cumulous.html)

How do they work? They look cool though.
Heavy air

2004-Nov-10, 11:51 AM
:o LGM alert!

2004-Nov-10, 01:14 PM
They are supposed to be vacuum dirigibles, with rigid lightweight tanks full of vacuum.
The atmosphere of Cumulous is a typical gas giant hydrogen /helium mix, and nothing is less dense than that; so these cloud cities are mostly nothing.



edit; here is some discussion of the idea at the half bakery;

on balance, it seems unlikely, but these things work better the bigger they get evidently.

2004-Nov-10, 03:58 PM
The concept of a tank of vacuum has always amused me. I can just see a conversation...

"What's that tank for?" "Nothing." "No, I mean what's in the tank?" "Nothing." "Nothing?" "Yep, nothing." "How do you tell when it's full? Does it have a nothing meter? Do you weigh it? How much is it worth and how do you price it?"

2004-Nov-10, 08:26 PM
So their volume is not all habitable.