UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Ibihe
Ibishushanyo 1.503 birahari • Ibyiciro bito 17
Reba Ibyiciro Bito
Abanyaviking
Abaroma
Abanyamisiri
Ubugereki bwa Kera
Igihe cya Edo
Mbere y'Amateka
Kera
Ibihe byo Hagati
Kigezweho
Nyuma ya Kigezweho
Industry 1.0 — Steam & Mechanization (1760)
Industry 2.0 — Electricity, Steel & Oil (1870)
Industry 3.0 — Assembly Line & Mass Production (1913)
Industry 4.0 — Computers & Digital Automation (1960)
Industry 5.0 — Open Knowledge & AI Collaboration (2026)
Renaissance (1400–1600)
Scientific Revolution (1600–1760)
Ibishushanyo (1.503)

Plantain Leaf Poultice — The Universal Wound Herb Found on Every Continent
na Bob
Mbere y'Amateka
104
0
0
0
1
0

Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion
na Bob
Mbere y'Amateka
40
0
0
0
5
0

Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
na Charlie
Metal
72
0
0
0
0
0

Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
na Penny
Ubumenyi bw'Umucyo
35
0
0
0
0
0

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
na Penny
Ubumenyi bw'Umucyo
55
0
0
0
1
0

Akaga
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
na Peter
Metal
37
0
0
0
0
0

Mubakire Pendile y'i Foucault — Kugaragaza Gukanika Kwisi
na Astro
Kigezweho
84
0
0
0
0
0

Building a Mariner's Sextant — The Instrument That Conquered the Oceans
na Astro
Kigezweho
31
0
0
0
0
0

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
na Astro
Umuringa
52
0
0
0
0
0

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
na Astro
Ibihe byo Hagati
42
0
0
0
0
0

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
na Astro
Abanyamisiri
112
0
0
0
0
0

Building a Camera Obscura — Projecting the Sun and Eclipses Safely
na Astro
Kera
811
0
0
0
0
0

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
na Astro
Ubumenyi bw'Inyenyeri
31
0
0
0
0
0

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
na Astro
Renaissance (1400–1600)
56
1
0
0
2
0

Building a Celestial Globe — Mapping the Stars on a Sphere
na Astro
Ibihe byo Hagati
29
0
0
0
0
0

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
na Astro
Ibihe byo Hagati
28
0
0
0
0
0

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
na Astro
Abanyaviking
42
0
0
0
1
0

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
na Astro
Abanyaviking
35
0
0
0
1
0

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions
na Astro
Renaissance (1400–1600)
48
0
0
0
1
0

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe
na Astro
Renaissance (1400–1600)
41
0
0
0
4
0