26 Sep 202226 Sep 2022Leen NoordzijLeave a Comment on A History of Shipping and Propulsion Edited and Updated 2022-09-26 Edited and Chapter 9 Flettner rotors added. A History of Shipping and Propulsion Edited and Updated 2022-09-26 Edited and Chapter 9 Flettner rotors added.
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10 Jun 202110 Jun 2021Leen NoordzijLeave a Comment on Archimedes’ Lever, Trisectrice of an angle by Geometrical Iteration Updated 2021-06-10, Edited and § 6.11: direct geometrical iteration of β/3 for 2π/3<β<2π Archimedes’ Lever, Trisectrice of an angle by Geometrical Iteration Updated 2021-06-10, Edited and § 6.11: direct geometrical iteration of β/3 for 2π/3<β<2π
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