Bris minisextant

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Bris mini sextant detailed explanation

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Bris Sextant Theory

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BRIS MINI SEXTANT DIY.

(11:21)

How to make a bris sextant

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Bris Sextant Interferometer

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Can a $20 sextant tell me where I am ?

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Yrvind Island named after the inventor of the Bris sextant. Bonus the twisted noon sextant.

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Yrvind introduces Bris l

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