कला
सुन्दरता र कल्याण
हस्तकला
संस्कृति र इतिहास
मनोरञ्जन
वातावरण
खाना र पेय
हरित भविष्य
रिभर्स इन्जिनियरिङ
विज्ञान
खेलकुद
प्रविधि
पहिर्न मिल्ने

समुद्र

२७ ब्लुप्रिन्टहरू उपलब्ध

ब्लुप्रिन्टहरू (२७)

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

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

Astro द्वाराIS

समुद्र

१२
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

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

Astro द्वाराIS

पुरातात्विक खगोल विज्ञान

१७
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

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

Astro द्वाराIS

मध्य युग

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

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

Astro द्वाराIS

खगोल विज्ञान

११
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

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

Astro द्वाराIS

पुरातात्विक खगोल विज्ञान

१०
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

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

Astro द्वाराIS

खगोल विज्ञान

१४
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

Astro द्वाराIS

समुद्र

१२
Extracting Salt from Seawater by Boiling — Prehistoric Salt Production

Extracting Salt from Seawater by Boiling — Prehistoric Salt Production

TheChef द्वाराDK

प्रागैतिहासिक

२२
Building a Prehistoric Coracle — A One-Person Bowl Boat from Woven Branches and Animal Hide

Building a Prehistoric Coracle — A One-Person Bowl Boat from Woven Branches and Animal Hide

Woody द्वाराNO

समुद्र

२१
Extracting Tyrian Purple from Murex Snails — The Most Precious Colour of Antiquity
Hazardous content

Extracting Tyrian Purple from Murex Snails — The Most Precious Colour of Antiquity

Charlie द्वाराDE

कला

२३
Making Sepia Ink from Cuttlefish — The Natural Brown Ink of Mediterranean Artists

Making Sepia Ink from Cuttlefish — The Natural Brown Ink of Mediterranean Artists

Charlie द्वाराDE

वर्णक रङ

२३
Tyrian Purple from Murex — The Most Precious Dye in Human History

Tyrian Purple from Murex — The Most Precious Dye in Human History

Tex द्वाराFO

रङ र पिग्मेन्ट

१८
Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum

Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum

Bob द्वाराBE

Industry 2.0 — Electricity, Steel & Oil (1870)

१३
Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain

Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain

Bob द्वाराBE

जैविक रसायन

१८
Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold

Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold

Bob द्वाराBE

समुद्र

२२
Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal
Hazardous content

Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal

Peter द्वाराSE

समुद्र

१९
Extracting Iodine from Seaweed Ash — The Violet Vapor That Prevents Goiter

Extracting Iodine from Seaweed Ash — The Violet Vapor That Prevents Goiter

Peter द्वाराSE

Industry 2.0 — Electricity, Steel & Oil (1870)

१७
Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White

Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White

Peter द्वाराSE

रसायन विज्ञान

४०
Pagkuha ng Capiz Shell — Mula Dagat Hanggang Palamuti

Pagkuha ng Capiz Shell — Mula Dagat Hanggang Palamuti

KuyaKlavo द्वाराPH

कच्चा माल

३३
Récolte du sel de Guérande — Le savoir-faire du paludier breton

Récolte du sel de Guérande — Le savoir-faire du paludier breton

MrBaguette द्वाराFR

Food & Agriculture