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Check the source. A cylinder having a radius of 1000 km and a length of 10000 km contains a frustum area of 31.4 billion square kilometers. It is likely that the living space would be far more than the stated 63 million square kilometers. Or perhaps the text cites incorrect dimensions, rather than an incorrect amount of surface area devoted to living space. 74.47.81.194 (talk) 09:30, 7 May 2016 (UTC)
Sorry, no. You are confusing the VOLUME of the cylinder (billions of CUBIC km) with the SURFACE AREA of the inside (millions of SQUARE km). YodaWhat (talk) 03:18, 19 August 2019 (UTC)
A 461 km radius cylinder with endcaps, with a 4610 km long cylinder portion, has a surface area on that cylinder portion of 1.22 x 1012 m2., half of which would be available for habitation (the other half being taken up with windows).
The curved area of a 460 km by 4600 km cylinder is more like 3 billion square kilometres than 13 million. NelC (talk) 03:45, 5 January 2019 (UTC)
Sorry, no. You are confusing the VOLUME of the cylinder (billions of CUBIC km) with the SURFACE AREA of the inside (millions of SQUARE km). YodaWhat (talk) 03:19, 19 August 2019 (UTC)
Judging by the object’s description, this is just a scaled up O'Neill cylinder design. Is it really notable to warrant an article separate from O’Neill cylinders? — BabylonAS 09:22, 7 December 2020 (UTC)