Naked eye observations

Terrific Tools for Observing the Skies

Naked-eye Skywatching: Maps, Asterisms, and Planetary Elongation

Naked Eye Astronomy Notes

Naked-Eye Astronomy: Cycles, Ecliptic, Zodiac, Planets, and Precession 2.1 Sky Above

Notes on Public Health, Postulates, Taxonomy, and Microbial Classification

chapter video notes

Notes on Observing the Solar System and The Expanding Universe

Eyes

Astronomical Observation Techniques

Eye Protection, PPE Readiness, and COVID-19 Field Observations

plant biology

Space Age Development and the Cold War

Ancient Civilizations: Mayans, Indus Valley, China, and Rome

Chapter 2 Notes: Patterns in the Night Sky, The Seasons, The Moon, and The Ancient Mystery of the Planets

Comprehensive Notes: Historical Astronomy, Orbital Mechanics, Milankovitch Variations, and Bowen’s Reaction Series

Chapter 2 Notes: Using Lights to Visualize the Microbial World

Astrology

Cosmology from Aristarchus to Kepler

Cycles of the Sky