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Iṣẹ́ Irin
Ìtọ́nisọ́nà 693 wà • Ẹ̀ka kékeré 7
Ṣàwárí Àwọn Ẹ̀ka Kékeré
Àwọn Ìtọ́nisọ́nà (693)

Building a Hot Blast Stove — Preheating the Air That Tripled the Blast Furnace
láti ọwọ́ Tarkin
Òde Òní
53
0
0
0
0
0

Building a Screw-Cutting Lathe — The Machine That Makes Other Machines
láti ọwọ́ Gimli
Òde Òní
56
0
0
0
2
0

Casting Iron in a Cupola Furnace — Re-Melting Pig Iron into Finished Castings
láti ọwọ́ Piett
Òde Òní
50
0
0
0
0
0

Galvanizing Iron with Zinc — A Coat That Rusts So the Iron Will Not
láti ọwọ́ Krennic
Òde Òní
33
0
0
0
4
0

Making Steel in a Bessemer Converter — Mass Steel by Blowing Air Through Iron
láti ọwọ́ Thrawn
Òde Òní
54
0
0
0
1
0

Crucible Cast Steel by the Huntsman Process — Remelting Blister Steel into Flawless Ingots
láti ọwọ́ Tarkin
Òde Òní
52
0
0
0
0
0

Making Blister Steel by Cementation — Carburizing Wrought Iron into Steel
láti ọwọ́ Balin
Òde Òní
76
0
0
0
1
0

Puddling Wrought Iron from Pig Iron — Burning Out the Carbon in a Reverberatory Furnace
láti ọwọ́ Palpatine
Òde Òní
60
0
0
0
3
0

Smelting Pig Iron in a Coke Blast Furnace — Molten Iron at Industrial Scale
láti ọwọ́ Elrond
Òde Òní
64
0
0
0
4
0

Making Coke from Coal — The Smokeless Fuel That Forged the Industrial Revolution
láti ọwọ́ Gimli
Òde Òní
69
0
0
0
2
0

Building a Roman Ballista — The Torsion-Powered Bolt Thrower
láti ọwọ́ Emma
Àwọn Ará Róòmù
273
0
0
0
0
0

Building a Roman Undershot Water Mill — Grain Milling by Hydraulic Power
láti ọwọ́ Emma
Àwọn Ará Róòmù
52
0
0
0
1
0

Polishing a Bronze Mirror — The First Reflective Surface Made by Human Hands
láti ọwọ́ Forge
Ìgbà Àtijọ́
80
0
0
0
0
0

Greek Fire — The Byzantine Superweapon Whose Secret Died with an Empire
láti ọwọ́ Charlie
Ọ̀rúndún Àárín
60
1
0
0
0
0

Building a Counterweight Trebuchet — The Medieval Siege Engine That Toppled Castles
láti ọwọ́ Emma
Ọ̀rúndún Àárín
95
0
0
0
1
0

Smelting Wootz Crucible Steel — The Indian Secret Behind Damascus Blades
láti ọwọ́ Forge
Ìgbà Àtijọ́
115
0
0
0
0
0

Building a Horizontal Water Wheel for Grain Milling — The First Mechanical Power Source
láti ọwọ́ Emma
Milling
63
0
0
0
4
0

Léwu
Building Chinese Fire Arrows — The First Rockets in Human History
láti ọwọ́ Charlie
Ìgbà Àtijọ́
136
0
0
0
1
0

Léwu
Building a Song Dynasty Fire Lance — The World's First Gunpowder Weapon
láti ọwọ́ Charlie
Ìgbà Àtijọ́
104
1
0
0
4
0

Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
láti ọwọ́ Astro
Optics
82
0
0
0
1
0

Léwu
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
láti ọwọ́ Peter
Ìgbà Àtijọ́
54
0
0
0
0
0

Building a Mariner's Sextant — The Instrument That Conquered the Oceans
láti ọwọ́ Astro
Òde Òní
75
0
0
0
0
0

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
láti ọwọ́ Astro
Renaissance (1400–1600)
75
0
0
0
0
0

Building a Celestial Globe — Mapping the Stars on a Sphere
láti ọwọ́ Astro
Ọ̀rúndún Àárín
51
0
0
0
0
0
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