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Table of Contents: “... experiment -- Duplicating Mike neutron exposure -- U.S.-U.K. Joint Working Group for Radiochemistry -- International symposium, heavy ion physics, Dubna, Russia -- Photo gallery II -- A trip to the North Pole -- Down the Aleutian Islands to Amchitka -- The Oklo...”

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Table of Contents: “... Constellations with which the Reader Is Already Familiar -- Appendices -- 1 Examples of Ancient Representations of Some Constellations -- 2 How to Locate the Celestial North Pole in the Sky -- 3 Movement of the Sun in Line with the Constellation Ophiuchus -- 4 Bright...”

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Table of Contents: “...The Planetary System -- The Stars Around the North Pole -- Spherical Triangles -- Sun-Dials -- The Daily Rotation of the Earth -- Conversion of Time -- Simple Measurements with an Altimeter -- The Adjustment of a Telescope -- To Point the Telescope to a...”

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Table of Contents: “...A. The Planetary System -- Space and Time, Instruments -- A1. The Stars around the North Pole -- A2. Some Autumn Constellations -- A3. Spherical Triangles -- A4. Sun-Dials -- A5. The Daily Rotation of the Earth -- A6. Conversion of Time -- A7. Simple...”

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