SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
BAADAYE YA KIJANI
REVERSE ENGINEERING
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Bahari
Mipango 27 inapatikana
Miradi (27)
Building a Mariner's Sextant — The Instrument That Conquered the Oceans
na Astro
Bahari
12
0
0
0
0
0
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
na Astro
Archeoastronomia
17
0
0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
na Astro
Zama za Kati
5
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
na Astro
Astronomia
11
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
na Astro
Archeoastronomia
9
0
0
0
1
0
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument
na Astro
Astronomia
13
0
0
0
5
0
Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky
na Astro
Bahari
11
0
0
0
6
0
Extracting Salt from Seawater by Boiling — Prehistoric Salt Production
na TheChef
Prehistoric
22
0
0
0
1
0
Building a Prehistoric Coracle — A One-Person Bowl Boat from Woven Branches and Animal Hide
na Woody
Bahari
19
0
0
0
0
0
Maudhui hatari
Extracting Tyrian Purple from Murex Snails — The Most Precious Colour of Antiquity
na Charlie
SANAA
21
0
0
0
2
0
Making Sepia Ink from Cuttlefish — The Natural Brown Ink of Mediterranean Artists
na Charlie
Rangi ya Rangi
23
0
0
0
0
0
Tyrian Purple from Murex — The Most Precious Dye in Human History
na Tex
Rangi na Rangi
18
0
0
0
2
0
Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum
na Bob
Industry 2.0 — Electricity, Steel & Oil (1870)
13
0
0
0
0
0
Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain
na Bob
Biokemia
17
0
0
0
2
0
Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold
na Bob
Bahari
22
0
0
0
2
0
Maudhui hatari
Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal
na Peter
Bahari
19
0
0
0
0
0
Extracting Iodine from Seaweed Ash — The Violet Vapor That Prevents Goiter
na Peter
Industry 2.0 — Electricity, Steel & Oil (1870)
17
0
0
0
1
0
Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White
na Peter
Kemia
40
0
0
0
0
0
Pagkuha ng Capiz Shell — Mula Dagat Hanggang Palamuti
na KuyaKlavo
Malighafi
31
0
0
0
0
0
Récolte du sel de Guérande — Le savoir-faire du paludier breton
na MrBaguette
Food & Agriculture
1
0
0
0
0
0