Celestial Patterns and Time
Astronomical Instruments
Navigation Instruments
Crosstaff
- Build a Crosstaff
- Make a Cross Staff
- The Cross-Staff
- Crosstaff
- Introduction of Navigational Instruments
- Navigation
- How to Use a Cross Staff
Nocturnal
- Navigation: The Nocturnal (How to build a nocturnal)
Sextant
Theodolite
Chichen Itza
Constellations
Fajada Butte
Foucault Pendulum
- The Foucault Pendulum - University of Louisville
- About Foucault Pendulums
- Foucault Pendulum
- Smithsonian Instutition - Foucault Pendulum
- The Foucault Pendulum
Iroquois
Lunar Eclipse
Moon Craters
Moon Myths
Moon Phases
- Phases of the Moon
- Moon Phases
- Starchild
- The Nine Planets - The Moon
- The Moon
- Windows to the Universe
- Sunrise Sunset Calendars
San
Solar Eclipse
Stonehenge
Sundial
- Sundial
- Sunshine in your Pocket
- Make a Sundial and Go Back in Time
- Let's Make a Sundial
- How Sundials Work
Tides
- Our Restless Tides
- How Can the Moom Affect Tides
- Ocean Tides
- Learn About Ocean Tides, Tidepools, & Tide Prediction
- Why Tides?
- The Tides
- What Causes the Tides to Change in the Ocean?