Now showing items 1-6 of 6

    • Astronomy & Music: Introduction to the Duochord 

      Annis, Jonathan (2015)
      The ancient Pythagoreans envisioned the heavens as celestial spheres rotating according to harmonious music. For Robert Fludd, a seventeenth-century physician, the universe was a monochord, its physical structure unintelligible ...
    • Elisabeth Hevelius: Observational Astronomer 

      Magruder, Kerry (2015)
      Elisabeth Hevelius, wife of Johann Hevelius, was an astronomer in her own right. They worked together in the observatory of their Gdansk home to measure angular widths and distances with a great sextant, which required two ...
    • Johan Schreck: Galileo's Friend in China 

      Magruder, Kerry (2015)
      Johann Schreck joined the Jesuit order in 1611, the same year that he used Galileo's telescope to observe the satellites of Jupiter. Upon becoming a Jesuit Schreck joined the Jesuit mission in China, taking with him a ...
    • Johann Kepler: Blueprints of the Universe 

      Magruder, Kerry (2015)
      Johann Kepler's "Mystery of the Universe" is rightly considered one of the brilliant illustrations in the history of astronomy. In it, Kepler used the five regular Pythagorean solids to refute the major objections to ...
    • Maria Cunitz: Kepler's Defender 

      Magruder, Kerry (2015)
      Maria Cunitz was one of the first astronomers to adopt Johann Kepler's astronomy. She made Kepler's achievement easy to grasp, and demonstrated that Kepler's laws were more accurate than anything that had come before. This ...
    • Pythagorean Solids: Five Regular Solids 

      Magruder, Kerry (2015)
      Throughout history the regular solids were a point of intrigue by astronomers, mathematicians, artists, and philosophers. The Pythagoreans proved that there are only five regular solids: the cube, triangle, octahedron, ...