User:Alvesgaspar/Illustrations

Illustrations

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  Self portrait, 1969
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  Replica of a wind rose from the chart of Jorge de Aguiar, 1492
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    Replica of an old wind-rose by Pedro Reinel, 1504
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  Replica of a wind rose from the Cantino planisphere, 1502
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  Replica of a wind rose from the Cantino planisphere, 1502
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  Replica of a wind rose from a chart of Jorge Reinel, c.1510
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  Replica of a wind rose from a chart of Jorge Reinel, c.1510
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  Replica of a wind rose from a chart of Gaspar Viegas, 1534
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  Replica of a wind rose from a chart of Gaspar Viegas, c.1530
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  Replica of a wind rose from a chart of Lopo Homem, 1554
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  Marine sextant
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  A vernier caliper
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  Using a vernier caliper
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  Using a vernier caliper
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    Using a marine sextant
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    A proof of the Pythagorian theorem
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    Missing square puzzle
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  Missing square puzzle
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  Ambigram JAG
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  Symbol: Astrolabe
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  Symbol: Marine sextant
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  Symbol: Astrolabe
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  Symbol: Marine sextant
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  Symbol: Mathematical cartography
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  Symbol: Mathematical cartography
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