ResearchFlatMoon | Star Trails- Ignorance and Arrogance @ResearchFlatMoon | Uploaded June 2021 | Updated October 2024, 1 hour ago.
Updated version of my star trails video outline the cause of star trails and the misunderstanding of the basic geometry of star trails in the science denial community. We not only look at the mechanism of star trails (including those from the ISS), we see those that deny the shape of the earth proving it is a a rotating globe. As a bonus we demonstrate the curve of the earth and the orbit of the moon.

$Can We Use the Apparent Horizon? - Nathans being Nathan The science denier community is trying to make hay with the idea of not being able to use bendy light and the apparent horizon. In this episode Bob looks at the error induced by uncorrected refraction in the Method Al Biruni. The dip correction on a sextant accounts not only for the curve of the earth but refraction as well. The result is a measurement from a horizontal plane. Remember to hit Like and Subscribe, your support of this channel is appreciated. Join our Discord Channel at https://discord.gg/QwcFct7DWc Help the Channel by joining our channel as a member Patreon- https://www.patreon.com/bobthescienceguy or sending a Paypal for equipment (I do take requests for content) https://www.paypal.com/donate?hosted_button_id=ED65DTMU9AB8C$

$The Radius of the Earth | Al Biruni Following up on our last video where we found the height of a mountain using the tangent function and a little algebra. Today we use that information to determine the radius of the earth and have a discussion of the effects of refraction. Upon review I noticed a slight error in my discussion of refraction. What I was discussing was the standard refraction of 7/6 R. Given a determination of the REFRACTED radius, to get the true radius you would divide by 7/6 or MULTIPLY by 6/7. I accidently said divide by 6/7. Sorry for the confusion. Remember to hit Like and Subscribe, your support of this channel is appreciated.$ $Telescope Mount | Preliminary Build Update on the build of the leveling mount for refractor telescope. Learning a lot of new skills- drilling metal, tapping, and solving problems. The mount is dry fit and leveling ability checked. We still need to attach the extension, drill the mounting plate (might need a machine shop to do that), tap the stud for the traversing mechanism and rig the attachment rod. If it is worth engineering, it is worth over engineering in my opinion.... Remember to hit Like and Subscribe, your support of this channel is appreciated. Join our Discord Channel at https://discord.gg/QwcFct7DWc Help the Channel by joining our channel as a member Patreon- https://www.patreon.com/bobthescienceguy or sending a Paypal for equipment (I do take requests for content) https://www.paypal.com/donate?hosted_button_id=ED65DTMU9AB8C$

Star Trails- Ignorance and Arrogance @ResearchFlatMoon