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សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
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ប្លង់បរិស្ថាន

បរិស្ថាន

279 ប្លង់មាន • 16 ប្រភេទរង

ប្លង់ (279)

Making a Stone Scraper for Hide Working — Conchoidal Flake Tool

Making a Stone Scraper for Hide Working — Conchoidal Flake Tool

ដោយ MaryFI

ពីមុនប្រវត្តិសាស្ត្រ

32
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0
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Making a Hammerstone — The First Tool in Human History

Making a Hammerstone — The First Tool in Human History

ដោយ MaryFI

ពីមុនប្រវត្តិសាស្ត្រ

30
0
0
0
4
0
Extracting Tyrian Purple from Murex Snails — The Most Precious Colour of Antiquity

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

ដោយ CharlieDE

សិល្បៈ

31
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2
0
Making Sepia Ink from Cuttlefish — The Natural Brown Ink of Mediterranean Artists

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

ដោយ CharlieDE

សិល្បៈ

81
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0
0
0
0
Tyrian Purple from Murex — The Most Precious Dye in Human History

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

ដោយ TexFO

បុរាណ

35
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0
0
2
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Smelting Bog Iron in a Bloomery Furnace — From Ore to Wrought Iron

Smelting Bog Iron in a Bloomery Furnace — From Ore to Wrought Iron

ដោយ ForgeNO

បុរាណ

50
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4
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Making Hide Glue by Boiling Rawhide Scraps — Prehistoric Collagen Adhesive

Making Hide Glue by Boiling Rawhide Scraps — Prehistoric Collagen Adhesive

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

35
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0
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Boiling Water with Hot Stones in a Bark Container — Stone Boiling

Boiling Water with Hot Stones in a Bark Container — Stone Boiling

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

39
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1
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Building a Figure-4 Deadfall Trap — Stone Weight Trigger Mechanism

Building a Figure-4 Deadfall Trap — Stone Weight Trigger Mechanism

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

28
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Setting a Simple Snare Trap on a Game Trail — Cordage Loop Hunting

Setting a Simple Snare Trap on a Game Trail — Cordage Loop Hunting

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

33
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Drying Medicinal Herbs for Winter Storage — Preserving Nature's Pharmacy

Drying Medicinal Herbs for Winter Storage — Preserving Nature's Pharmacy

ដោយ BobBE

Storage

30
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3
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Preparing a Yarrow Wound Poultice — Prehistoric Herbal First Aid

Preparing a Yarrow Wound Poultice — Prehistoric Herbal First Aid

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

31
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5
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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

ដោយ BobBE

ជីវវិទ្យា

28
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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

ដោយ BobBE

ជីវវិទ្យា

23
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2
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Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold

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

ដោយ BobBE

ជីវវិទ្យា

30
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2
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Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal

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

ដោយ PeterSE

រសាយនវិទ្យា

29
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Extracting Iodine from Seaweed Ash — The Violet Vapor That Prevents Goiter
គ្រោះថ្នាក់

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

ដោយ PeterSE

រសាយនវិទ្យា

26
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1
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Extracting Boron Compounds from Borax — The Desert Mineral That Cleans, Fluxes, and Strengthens Glass
គ្រោះថ្នាក់

Extracting Boron Compounds from Borax — The Desert Mineral That Cleans, Fluxes, and Strengthens Glass

ដោយ PeterSE

រសាយនវិទ្យា

28
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1
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Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White

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

ដោយ PeterSE

រសាយនវិទ្យា

51
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0
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Harvesting and Preparing Wild Clay from Riverbanks

Harvesting and Preparing Wild Clay from Riverbanks

ដោយ ClayDK

សេរ៉ាមិក និង ដី

47
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