I questioned the distance to the moon when I found its rise/set times could be used as tangents on a circle. This then led to the discovery that the Northern and Southern hemispheres have differing rise/set times on the same days. I also saw the moon could not form an orbit around Earth. One moon […]Read More revisiting the distance to the moon
The length of a degree is in a ratio to the radius of a circle. (The centre of the circle is the eye! The viewing device). Whatever length of unit is used to define one, equally dictates the other. Earths radius of 3963 miles produces a degree length of 24887.64 ÷ 360 = 69.13 miles. […]Read More A formula for finding the length of a degree.
Axial rotation describes a point on the edge of a plane that moves at right angles to its centre in a way that will cause it to first approach, then recede from any given direction. In other words, if you place a marker on a wheel standing on the ground, that marker will first travel […]Read More “The moon rotates on its axis” Oh, no it doesn’t!
All astronomical measurement is only possible using predictable cycles of motion. A ‘Day’ is one turn of the Earth on its axis. A ‘Year’ is one cycle of the Earth round the Sun. There is also the moon’s cycle of 27.32 days, and Precession of the Equinoxes, which I will discuss later. Our measure of […]Read More The God Equation