Thursday, May 17, 2018

Resources on Coriolis forces use in external ballistics

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Over and over and over and over and over again the experts tell you that at VERY LONG ranges the Coriolis and Eötvös effects matter and are ...
Thursday, March 8, 2018

Simple Proof of the Globe: Distances Between 4 Cities

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As discussed previously in  Flat Earth Challenges , checking distance and area measurements is a fairly simple way to show it is impossible ...
Monday, February 26, 2018

Mt. Rainier's Shadow

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This image of Mt. Rainier taken by Shannon Winslow  (author of historical fiction in the tradition of Jane Austen) features a shadow that is...
Friday, December 15, 2017

How much should the moon appear to shift between two positions on Earth?

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Let's say we have two people viewing the moon who are 10300km apart along the same line of latitude at the same time. How much of a...
Monday, December 11, 2017

Kepler's Laws from Newton

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Nothing new here, just wanted to capture these proofs into a single location for easy reference. I've tried to arrange them into a ...
Friday, December 1, 2017

Brief History Of Gravity

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This is something I've been working on for a while and I hope you will find something new in it and you will almost certainly find s...
Wednesday, November 29, 2017

Celestia Recreation: Apollo 17 'Blue Marble', 7th Dec 1972 at 10:49 UTC, 29,000 km over 30°S 31°E

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I love doing these because I found an error in the ' Blue Marble ' Wikipedia entry, someone was careless with their timezone convers...