https://lievenlebruyn.github.io/neverendingbooks/imagination-and-the-impossible/ Sat, 31 Aug 2024 11:08:25 +0000 hourly 1 https://wordpress.org/?v=6.6.1 https://lievenlebruyn.github.io/neverendingbooks/imagination-and-the-impossible/#comment-125 Mon, 28 Jun 2021 15:01:42 +0000 http://www.neverendingbooks.org/?p=9823#comment-125 Perhaps something on “making curved surfaces with straight lines”, i.e. hyperboloids made of sticks? Used for cooling towers, lighthouses, watertowers, …

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