Fazi's World

By Gerard Mackay and Mr Gerard S Mackay

An illustrated STEM-based rhyming story for kids (aged 9 to 99) set in ancient Egypt and Sudan about 2000 years ago, where Young Fazi, who works a Nile camel train, notices that shadows North and south of Swenett (Aswan) are cast in opposite directions in mid-summer, and reasons that the surface of his world might be curved, or even round like the moon, and given this hypothesis, sets out, using angles and fractions, to work out exactly how long his camel-route is compared to what would be the total distance around the entire world.

Contents- 1- Two thousand years (or so) ago. 2- On the Nile flourished commerce. 3- In Swenett (Syene/Aswan) it was known for sure. 4- A year to the day in Soba (Khartoum). 5- Young Fazi liked drawing circles. 6- A pair of parallel beams. 7- Eratosthenese Method. 8- So how do you measure the size of an angle? 9- Circles can be divided into slices called Degrees. 10- A shadow that's equal in length to its stick. 11- A quarter circle on the ground. 12- Just short of the one-thirty-second to one-sixty-fourth mid-point. 13- One twenty-fourth round the entire world. 14- So was the sun spinning around the world? 15- A star that stayed stationary all night long. 16- The stars up-river in the South over Soba (Khartoum). 17- The stars for the most part all moved together. 18- Over thirty days on the trail to Pelusium. 19- The moon rose later each night. 20- A whole new perspective. 21- Everything can be distilled to quantifiable truths. 22- Context Corner. 23- Circumpolar Stars. 24- The cyclic phase of the moon. 25- The Lunar Sidereal Period. 26- Tilted Orbit and Tides. 27- Five degrees of tilt may not seem like much. 28- Welcome to lunar orbital dynamics. 29- How much later each day? 30- Apsides and Precession. 31- Arcing Across the Horizon. 32- Seasons. 33- Ecliptic Plane. 34- Wandering Stars. 35- The Great Parallel Light-Beam Assumption. 36- Shadows on a Planetary Scale. 37- The Earth and Moon pulling on each other. 38- Corals and Lazer-Beams. 39- Rock samples and the need for speed. 40- The Ecliptic Backdrop. 41- Nothing Stays the Same Forever. 42- Asteroids and Trans-Neptunian Objects. 43- A Rocky Perspective. 44- We Don't Talk About Pluto. 45- TNO's and Ceres. 46- Sparse Fuzzy Poorly Defined Donut. 47- Lagrange and Trojans. 48- Stable Orbits. 49- Nothing for Nothing. 50- This Short Journey. 51- Out-Running Our Star. 52- The Milky Way. 53- Homework Assignment.

• Format: Paperback
• Language: English
• ISBN: B08WV4ZQHF
• ISBN13: 9798706087555
• Release Date: February 2021
• Publisher: Independently Published
• Length: 60 Pages
• Weight: 0.48 lbs.
• Dimensions: 0.2" x 8.5" x 11.0"