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The 20th-Century Obelisk
- doctor_eval 7y agoI was thinking maybe they discovered something on the moon. Alas, Paris.
- mensetmanusman 7y agoPentahedrons and cylinders are more straightforward to build to a given height, angled tops are necessary to prevent accumulation of corrosive water/ice cycling.
- g82918 7y agoI think part of the appeal of an obelisk is that it is hard to keep the stone together during the raising. Erecting an obelisk in ancient times was a bit of a hassle where one may be being erected would be considered a great act or at least the act of a person able to waste resources. A modern feat would be like the arch in Saint Louis where you use concrete and steel in a way that isn't perfect for them(some tension).