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Àwọn Ìtọ́nisọ́nàÀṢÀ ÀTI ÌTÀN

ÀṢÀ ÀTI ÌTÀN

Ìtọ́nisọ́nà 1,607 wà • Ẹ̀ka kékeré 3

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Àwọn Àkókò

Àwọn Ìtọ́nisọ́nà (1,607)

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

láti ọwọ́ PennyDK

Optics

81
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0
0
1
0
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
Léwu

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge

láti ọwọ́ PeterSE

Metal

47
0
0
0
0
0
Ṣe Àkìtì Foucault — Ṣe Itọ́sọ́ Ayé Hàn

Ṣe Àkìtì Foucault — Ṣe Itọ́sọ́ Ayé Hàn

láti ọwọ́ AstroIS

Òde Òní

102
0
0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Building a Mariner's Sextant — The Instrument That Conquered the Oceans

láti ọwọ́ AstroIS

Òde Òní

63
0
0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

láti ọwọ́ AstroIS

Idẹ

75
0
0
0
0
0
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

láti ọwọ́ AstroIS

Ọ̀rúndún Àárín

63
0
0
0
0
0
Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

láti ọwọ́ AstroIS

Àwọn Ará Ẹgbẹ́

186
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

láti ọwọ́ AstroIS

Ìgbà Àtijọ́

850
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

láti ọwọ́ AstroIS

Ìmọ̀ Ìràwọ̀

52
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

láti ọwọ́ AstroIS

Renaissance (1400–1600)

88
1
0
0
2
0
Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

láti ọwọ́ AstroIS

Ọ̀rúndún Àárín

46
0
0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

láti ọwọ́ AstroIS

Ọ̀rúndún Àárín

53
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

láti ọwọ́ AstroIS

Àwọn Viking

64
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

láti ọwọ́ AstroIS

Àwọn Viking

59
0
0
0
1
0
Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

láti ọwọ́ AstroIS

Renaissance (1400–1600)

72
0
0
0
1
0
Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

láti ọwọ́ AstroIS

Renaissance (1400–1600)

63
0
0
0
4
0
Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

láti ọwọ́ AstroIS

Renaissance (1400–1600)

65
0
0
0
3
0
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

láti ọwọ́ AstroIS

Ọ̀rúndún Àárín

86
0
0
0
6
0
Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

láti ọwọ́ AstroIS

Idẹ

68
0
0
0
7
0
Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

láti ọwọ́ AstroIS

Idẹ

81
0
0
0
3
0
Warping a Treadle Loom — Measuring, Beaming, and Threading Warp for Broadcloth

Warping a Treadle Loom — Measuring, Beaming, and Threading Warp for Broadcloth

láti ọwọ́ TexFO

Ọ̀rúndún Àárín

33
0
0
0
0
0
Burling and Mending Woven Cloth — Cleaning and Repairing Fabric Before Fulling

Burling and Mending Woven Cloth — Cleaning and Repairing Fabric Before Fulling

láti ọwọ́ TexFO

Cleaning

63
0
0
0
0
0
Pressing Broadcloth in a Screw Press — Hot and Cold Finishing for Lustre

Pressing Broadcloth in a Screw Press — Hot and Cold Finishing for Lustre

láti ọwọ́ TexFO

Ọ̀rúndún Àárín

38
0
0
0
0
0
Raising the Nap and Shearing Woolen Cloth — Teasel Napping and Cropping Shears

Raising the Nap and Shearing Woolen Cloth — Teasel Napping and Cropping Shears

láti ọwọ́ TexFO

Ọ̀rúndún Àárín

68
0
0
0
1
0
Ń fi 24 nínú 1607 hàn