Shadow Trackers

Shadow Trackers
Jul 22, 2017 · 2 min read

What is this about.

I think I figured out a way to prove (or disprove) flat Earth using shadows of a vertical pole stuck on the ground. The measurements would involve spending a whole day in the sun taking notes of the length and the direction of shadows. Based on those measurements we can compare them with the “shadow signature” that is predicted by globe vs. flat model and reach a conclusion. Having more people do it in different parts of the world would yield more data, which is better.

This is an open invitation to anyone (regardless of what what you believe) who’s willing to make such measurements and provide us with results, which will be published here.

I want to participate, what do I do?

Instructions for trackers.

How do I look at those shadow signatures?

Shadow signatures are predicted by this spreadsheet. If you have a Google account, you can copy it and with a few tweaks you get your result.

Understanding shadow signatures.

Where’s the mathematical rationale behind that spreadsheet?

See this article here:
Predictive models for shadow length and direction on globe vs. flat earth

Are there any results so far?

YES!

FAQ

Q) Isn’t this the same as Erastothenes experiment?
A) It’s similar but it’s not the same thing. Here’s some differences:
- We are not concerned with measuring shadows simultaneously at different places
- We are measuring both shadow lengths and directions
- We are interested in producing “shadow signatures” (a shadow’s behaviour at the same place during a whole day)
- We have the internet and online spreadsheets! =D

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