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  2. Zebra Puzzle - Wikipedia

    en.wikipedia.org/wiki/Zebra_Puzzle

    The Zebra Puzzle is a well-known logic puzzle. Many versions of the puzzle exist, including a version published in Life International magazine on December 17, 1962. The March 25, 1963, issue of Life contained the solution and the names of several hundred successful solvers from around the world.

  3. William Frauenglass - Wikipedia

    en.wikipedia.org/wiki/William_Frauenglass

    William E. Jenner headed the SISS when Frauenglass appeared before it in April 1953. On April 24, 1953, attorney Joseph Forer (member of the Washington, DC, chapter of the National Lawyers Guild) represented Frauenglass when he appeared under subpoena before the United States Senate Subcommittee on Internal Security.

  4. David Smith (amateur mathematician) - Wikipedia

    en.wikipedia.org/wiki/David_Smith_(amateur...

    Smith discovered a 13-sided polygon in November 2022 whilst using a software package called PolyForm Puzzle Solver to experiment with different shapes. [4] After further experimentation using cardboard cut-outs, he realised that the shape appeared to tessellate but seemingly without ever achieving a regular pattern.

  5. List of scientific publications by Albert Einstein - Wikipedia

    en.wikipedia.org/wiki/List_of_scientific...

    Einstein's scientific publications are listed below in four tables: journal articles, book chapters, books and authorized translations. Each publication is indexed in the first column by its number in the Schilpp bibliography ( Albert Einstein: Philosopher–Scientist , pp. 694–730) and by its article number in Einstein's Collected Papers .

  6. Exact solutions in general relativity - Wikipedia

    en.wikipedia.org/wiki/Exact_solutions_in_general...

    In general relativity, an exact solution is a (typically closed form) solution of the Einstein field equations whose derivation does not invoke simplifying approximations of the equations, though the starting point for that derivation may be an idealized case like a perfectly spherical shape of matter.

  7. Einstein's thought experiments - Wikipedia

    en.wikipedia.org/wiki/Einstein's_thought_experiments

    Einstein's recollections of his youthful musings are widely cited because of the hints they provide of his later great discovery. However, Norton has noted that Einstein's reminiscences were probably colored by a half-century of hindsight. Norton lists several problems with Einstein's recounting, both historical and scientific: [7] 1.

  8. Metapuzzle - Wikipedia

    en.wikipedia.org/wiki/Metapuzzle

    In a compilation metapuzzle, the answers to puzzles unite as components used to solve a final puzzle. This form of puzzle is particularly inclined towards backsolving, where some of the component puzzle answers are used to solve the final metapuzzle, and the metapuzzle's solution is used to solve the remaining component puzzles. [1]

  9. One World or None - Wikipedia

    en.wikipedia.org/wiki/One_World_or_None

    One World or None established that throughout history, scientists from many nations have made great advances and discoveries and have shared that knowledge globally. The periodic table was developed by Russian chemist Dmitri Mendeleev, British scientist J. J. Thomson and his team discovered the principle of the electron, and German theorist Albert Einstein came up with the theory of relativity.