is an art project and book by Swiss architect and artist Christian Waldvogel presenting a conceptual transformation of Planet Earth
into a much bigger, hollow, artificial world
with an ecosphere
on its inner surface. It was the Swiss contribution to the 2004 Venice Architecture Biennale
It consists of a meticulous description of the transformation process, a narrative of its construction, and suggestions on the organizational workings on Globus Cassus.
Waldvogel describes it as an "open source
" art project and states that anyone can contribute designs and narratives to it on the project wiki.
The proposed megastructure would incorporate all of Earth's matter. Sunlight would enter through two large windows, and gravity
would be simulated by the centrifugal effect
. Humans would live on two vast regions that face each other and that are connected through the empty center. The hydrosphere
would be retained on its inside. The ecosphere
would be restricted to the equatorial
zones, while at the low-gravity tropic
zones a thin atmosphere would allow only for plantations. The polar regions
would have neither gravity nor atmosphere and would therefore be used for storage of raw materials and microgravity production... Read More