Author: eyeofhorus33 wrote:
Date: February 02, 2017 07:04PM
I'm reminded of Galileo who allegedly remarked: "And yet it moves!"

Hi eyeofhorus33 ,

Most people believe the North star does not move. This is false. as it moves in a small circle, except during the 4 solstice/ equinox. To establish the inclined plain angle of 23.5°, I would think you first establish a right angle (straight up) in relationship to the earth. The North star is not straight up, as I recall. The angle between straight up and the angle in relationship of the North star, should produce the 23.5°.

Establishing a right angle.

To establish what straight up is, you first need a true level platform. The acquire a true level platform, you first build a box, and cast wet plaster into that box. It will self level before hardening. Build a another wood platform, which sits in the casting, and you hang a plumb bob down into the wet plaster, as it hardens you fix the line and wood platform in place. That line is now at perfect right angles, in relationship to the base. That's how you make a perfect right angle. If you had rubbed the line with colored chalk, you can snap the line, and transfer the line onto other wood surfaces.

If this is unclear, I will do an Illustration.