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282 progetti disponibili • 16 sottocategorie
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Progetti (282)
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
di Astro
Medioevo
35
0
0
0
0
0
Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
di Astro
Egiziani
76
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely
di Astro
Antico
790
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
di Astro
Astronomia
25
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
di Astro
Renaissance (1400–1600)
38
1
0
0
2
0
Building a Celestial Globe — Mapping the Stars on a Sphere
di Astro
Medioevo
23
0
0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
di Astro
Medioevo
19
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
di Astro
Vichinghi
33
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
di Astro
Vichinghi
30
0
0
0
1
0
Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions
di Astro
Renaissance (1400–1600)
41
0
0
0
1
0
Building a Galilean Telescope — The Instrument That Changed Our View of the Universe
di Astro
Renaissance (1400–1600)
29
0
0
0
4
0
Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System
di Astro
Renaissance (1400–1600)
27
0
0
0
3
0
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument
di Astro
Medioevo
37
0
0
0
6
0
Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky
di Astro
Ottone
28
0
0
0
7
0
Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens
di Astro
Bronzo
23
0
0
0
3
0
Salt-Curing Meat for Preservation — Dry Salting Without Refrigeration
di TheChef
Food & Agriculture
28
0
0
0
0
0
Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting
di Forge
Lavorazione dei metalli
29
0
0
0
0
0
Boiling Water in a Leaf over Direct Flame — Why Water Keeps the Vessel from Burning
di TheChef
Food & Agriculture
29
0
0
0
0
0
Forging an Iron Fish Hook — Drawing, Bending, and Barbing Wire Stock
di Forge
Lavorazione dei metalli
19
0
0
0
0
0
Striking Fire from Flint and Iron Pyrite — Spark-Based Fire Starting
di Spartan
Preistorico
28
0
0
0
0
0