Stanislaw Ulam | spiral galaxy | Spiral | spiral | Spiral Circle Complete | Ulam | Spiral Tribe | The Downward Spiral | Spiral (Stockhausen) | Spiral model | Spiral Minaret | Spiral Jetty | Spiral Honey | Spiral galaxy | Spiral (film) | ''Spiral Expansion of Muscles in Action'', plaster, photograph published in 1914 and 1919, in ''Cubists and Post-Impressionism'', by Arthur Jerome Eddy | Spiral Castle | Grand design spiral galaxy | Further Down the Spiral | Fermi-Pasta-Ulam problem | Archimedean spiral | Adam Ulam |
In this passage, Clarke describes the prime spiral, a method of graphing the prime numbers that reveals a pattern, seven years before it was discovered by Stanislaw Ulam.