សិល្បៈ
សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
អនាគតបៃតង
វិស្វកម្មបញ្ច្រាស
វិទ្យាសាស្ត្រ
កីឡា
បច្ចេកវិទ្យា
ប្រដាប់ដែលស្លៀក

បុរាណ

248 ប្លង់មាន

ប្លង់ (248)

Dyeing Blue with a Woad Urine Vat — The Fermentation Method That Coloured Europe

Dyeing Blue with a Woad Urine Vat — The Fermentation Method That Coloured Europe

ដោយ TexFO

វាយនភណ្ឌ និង ស្បែក

22
0
0
0
3
0
Dyeing with Pomegranate Rinds — Ancient Gold from the Fruit of the Middle East

Dyeing with Pomegranate Rinds — Ancient Gold from the Fruit of the Middle East

ដោយ TexFO

ថ្នាំលាប និង ពណ៌

13
0
0
0
1
0
Dyeing Yarn with Turmeric — The Oldest Golden-Yellow Dye

Dyeing Yarn with Turmeric — The Oldest Golden-Yellow Dye

ដោយ TexFO

ការលាបពណ៌ និង ការបាញ់ពណ៌

21
0
0
0
5
0
Mordanting Wool with Alum — The Foundation of Natural Dyeing

Mordanting Wool with Alum — The Foundation of Natural Dyeing

ដោយ TexFO

បុរាណ

25
0
0
0
51
0
Reeling Silk from Cocoons — Unwinding the Continuous Filament

Reeling Silk from Cocoons — Unwinding the Continuous Filament

ដោយ TexFO

Natural Fibers

15
0
0
0
2
0
Quench Hardening and Tempering a Steel Blade — Heat Treatment Fundamentals
Hazardous content

Quench Hardening and Tempering a Steel Blade — Heat Treatment Fundamentals

ដោយ ForgeNO

Steel & Iron

30
0
0
0
4
0
Smelting Bog Iron in a Bloomery Furnace — From Ore to Wrought Iron
Hazardous content

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

ដោយ ForgeNO

ទឹក

22
0
0
0
3
0
Alloying Steel from Iron and Carbon — The Metal That Built the Modern World
Hazardous content

Alloying Steel from Iron and Carbon — The Metal That Built the Modern World

ដោយ MaryFI

រសាយនវិទ្យា

18
0
0
0
6
0
Alloying Brass from Copper and Zinc — The Golden Metal That Is Neither Gold Nor Bronze
Hazardous content

Alloying Brass from Copper and Zinc — The Golden Metal That Is Neither Gold Nor Bronze

ដោយ MaryFI

រសាយនវិទ្យា

16
0
0
0
4
0
Building a Box Bellows — The Breath That Makes Metal Obey Fire

Building a Box Bellows — The Breath That Makes Metal Obey Fire

ដោយ EmmaSE

រូបវិទ្យា

35
0
0
0
7
0
Making Soda-Lime Glass from Raw Materials — The Recipe That Has Not Changed in 5,000 Years

Making Soda-Lime Glass from Raw Materials — The Recipe That Has Not Changed in 5,000 Years

ដោយ MaryFI

រសាយនវិទ្យា

27
0
0
0
17
0
Understanding Oxygen Through Combustion — The Element That Makes Fire Breathe

Understanding Oxygen Through Combustion — The Element That Makes Fire Breathe

ដោយ PeterSE

រសាយនវិទ្យា

23
0
0
0
1
0
Generating Hydrogen Gas from Acid and Metal — The Lightest Element in the Universe

Generating Hydrogen Gas from Acid and Metal — The Lightest Element in the Universe

ដោយ PeterSE

រសាយនវិទ្យា

22
0
0
0
1
0
Understanding Carbon Through Charcoal Making — The Element of Life and Fire

Understanding Carbon Through Charcoal Making — The Element of Life and Fire

ដោយ PeterSE

រសាយនវិទ្យា

28
0
0
0
1
0
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

40
0
0
0
0
0
Growing Saltpeter from Niter Beds — The Explosive Element in Every Living Thing

Growing Saltpeter from Niter Beds — The Explosive Element in Every Living Thing

ដោយ PeterSE

សម្ភារៈឆៅ

92
0
0
0
2
0
Recognizing Silicon in Nature — From Flint Nodules to Quartz Crystals

Recognizing Silicon in Nature — From Flint Nodules to Quartz Crystals

ដោយ PeterSE

បុរាណ

25
0
0
0
1
0
Burning Quicklime from Limestone — The Element That Built Civilization

Burning Quicklime from Limestone — The Element That Built Civilization

ដោយ PeterSE

រសាយនវិទ្យា

33
0
0
0
3
0
Extracting Potash from Wood Ash — The Alkali Element Hidden in Every Fire

Extracting Potash from Wood Ash — The Alkali Element Hidden in Every Fire

ដោយ PeterSE

សម្ភារៈឆៅ

55
0
0
0
3
0
Understanding Tellurium from Calaverite — The Rarest Stable Metalloid from Gold Ore

Understanding Tellurium from Calaverite — The Rarest Stable Metalloid from Gold Ore

ដោយ PeterSE

បុរាណ

14
0
0
0
0
0