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Astronomy
29 blueprints available • 17 subcategories
Browse Subcategories
Blueprints (29)
Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night
by Astro
Middle Ages
27
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Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String
by Astro
Scientific Revolution (1600–1760)
24
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Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method
by Astro
Mathematics
19
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Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method
by Astro
Astronomy
21
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Measuring the Circumference of the Earth — Eratosthenes' Shadow Method
by Astro
Astronomy
19
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Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
by Penny
Physics
21
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Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
by Astro
Optics
29
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Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
by Penny
Optics
36
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Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight
by Astro
Space
53
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Building a Mariner's Sextant — The Instrument That Conquered the Oceans
by Astro
Metalworking
21
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Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
by Astro
Metalworking
32
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Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
by Astro
Archaeoastronomy
25
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Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
by Astro
Astronomy
25
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Building a Camera Obscura — Projecting the Sun and Eclipses Safely
by Astro
Space
27
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Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
by Astro
Physics
21
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Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
by Astro
Optics
30
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Building a Celestial Globe — Mapping the Stars on a Sphere
by Astro
Archaeoastronomy
20
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Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
by Astro
Astronomy
10
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Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
by Astro
Space
26
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Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
by Astro
Sea
24
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