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Ìtọ́nisọ́nà 348 wà • Ẹ̀ka kékeré 16
Ṣàwárí Àwọn Ẹ̀ka Kékeré
Àwọn Ìtọ́nisọ́nà (348)

Building a Mariner's Sextant — The Instrument That Conquered the Oceans
láti ọwọ́ Astro
Òde Òní
62
0
0
0
0
0

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
láti ọwọ́ Astro
Idẹ
75
0
0
0
0
0

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
láti ọwọ́ Astro
Ọ̀rúndún Àárín
63
0
0
0
0
0

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
láti ọwọ́ Astro
Àwọn Ará Ẹgbẹ́
185
0
0
0
0
0

Building a Camera Obscura — Projecting the Sun and Eclipses Safely
láti ọwọ́ Astro
Ìgbà Àtijọ́
846
0
0
0
0
0

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
láti ọwọ́ Astro
Ìmọ̀ Ìràwọ̀
52
0
0
0
0
0

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
láti ọwọ́ Astro
Renaissance (1400–1600)
88
1
0
0
2
0

Building a Celestial Globe — Mapping the Stars on a Sphere
láti ọwọ́ Astro
Ọ̀rúndún Àárín
46
0
0
0
0
0

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
láti ọwọ́ Astro
Ọ̀rúndún Àárín
51
0
0
0
0
0

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
láti ọwọ́ Astro
Àwọn Viking
61
0
0
0
1
0

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
láti ọwọ́ Astro
Àwọn Viking
58
0
0
0
1
0

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions
láti ọwọ́ Astro
Renaissance (1400–1600)
72
0
0
0
1
0

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe
láti ọwọ́ Astro
Renaissance (1400–1600)
63
0
0
0
4
0

Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System
láti ọwọ́ Astro
Renaissance (1400–1600)
65
0
0
0
3
0

Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument
láti ọwọ́ Astro
Ọ̀rúndún Àárín
84
0
0
0
6
0

Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky
láti ọwọ́ Astro
Idẹ
65
0
0
0
7
0

Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens
láti ọwọ́ Astro
Idẹ
80
0
0
0
3
0

Salt-Curing Meat for Preservation — Dry Salting Without Refrigeration
láti ọwọ́ TheChef
Food & Agriculture
43
0
0
0
0
0

Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting
láti ọwọ́ Forge
Iṣẹ́ Irin
47
0
0
0
0
0

Boiling Water in a Leaf over Direct Flame — Why Water Keeps the Vessel from Burning
láti ọwọ́ TheChef
Food & Agriculture
50
0
0
0
0
0

Forging an Iron Fish Hook — Drawing, Bending, and Barbing Wire Stock
láti ọwọ́ Forge
Iṣẹ́ Irin
41
0
0
0
0
0

Striking Fire from Flint and Iron Pyrite — Spark-Based Fire Starting
láti ọwọ́ Spartan
Ṣáájú Ìtàn
57
0
0
0
0
0

Starting Fire with a Hand Drill — The Simplest Friction Fire Method
láti ọwọ́ Spartan
Ṣáájú Ìtàn
89
0
0
0
0
0

Making a Bone Fish Gorge — The Oldest Fishing Device
láti ọwọ́ Spartan
Ṣáájú Ìtàn
58
0
0
0
0
0
Ń fi 24 nínú 348 hàn