Code Number: 1A10.41/8A10.80
Demo Title: Geochron/Analemma
Condition: Excellent
Principle: Sunlit Portion of the Earth
Area of Study: Astronomy
Equipment:
Geochron Clock.
Procedure:
See also: Geochron 1A10.41 in Mechanics and Analemma 8A10.80 in Astronomy.
You can see the sunlit portion of the Earth at any time or season.
References:
- Alejandro Gangui, Cecilia Lastra, and Fernando Karaseur, "On Times and Shadows: The Observational Analemma", TPT, Vol. 56, #6, Sept. 2018, p. 367.
- William Baird, Jeffery Secrest, Clifford Padgett, Wayne Johnson, and Claire Hagrelius, "Smartphones and Time Zones", TPT, Vol. 54, #6, Sept. 2016, p. 351.
- James Brimhall, "The Varying Lengths of Solar Days", TPT, Vol. 34, #6, Sept. 1996, p. 351.
- Anna Sajina, "On Ships, Trains, and the Equation of Time", Physics Today, Vol. 61, #11, Nov. 2008, p. 76.
- Janice VanCleave, "15, Time Zones", Geography for Every Kid: Easy Activities that Make Learning Geography Fun", p. 135 - 144.
- Stan Gibilisco, "The Shadow Puzzle", More Puzzles, Paradoxes and Brain Teasers, p. 16.