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សម្រស់ និង សុខុមាលភាព
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វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
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ម្ហូប និង ភេសជ្ជៈ
អនាគតបៃតង
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កីឡា
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សិប្បកម្ម

502 ប្លង់មាន • 11 ប្រភេទរង

ប្លង់ (502)

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

បុរាណ

17
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

ការធ្វើការលោហៈ

14
0
0
0
4
0
Making Black Powder from Saltpeter, Sulfur, and Charcoal — The Mixture That Changed the World
Hazardous content

Making Black Powder from Saltpeter, Sulfur, and Charcoal — The Mixture That Changed the World

ដោយ CharlieDE

រសាយនវិទ្យា

20
0
0
0
7
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

មេកានិក

30
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

បុរាណ

21
0
0
0
17
0
ការស្រង់ទាញលម្នាក់រឹងធម្មជាតិពីរុក្ខជាតិ — ពណ៌ពីសួនច្បារ

ការស្រង់ទាញលម្នាក់រឹងធម្មជាតិពីរុក្ខជាតិ — ពណ៌ពីសួនច្បារ

ដោយ BobBE

រុក្ខវិទ្យា

22
0
0
0
0
0
ការជ្រើសរើស និងកែច្នៃឈើរឹងសម្រាប់ធ្វើឈើ

ការជ្រើសរើស និងកែច្នៃឈើរឹងសម្រាប់ធ្វើឈើ

ដោយ WoodyNO

ការផលិតកាត់បន្ថយ

14
0
0
0
0
0
Processing Raw Flax into Linen Fiber — From Field to Thread

Processing Raw Flax into Linen Fiber — From Field to Thread

ដោយ TexFO

Natural Fibers

17
0
0
0
2
0
Harvesting and Preparing Wild Clay from Riverbanks

Harvesting and Preparing Wild Clay from Riverbanks

ដោយ ClayDK

ដីដុសមាត់

16
0
0
0
0
0
ការទាញយកម៉ូលីបដិនមពីម៉ូលីបដិននីត - សារធាតុរអិលដែលពង្រឹងដែក

ការទាញយកម៉ូលីបដិនមពីម៉ូលីបដិននីត - សារធាតុរអិលដែលពង្រឹងដែក

ដោយ PeterSE

ការជីកយករ៉ែ

15
0
0
0
0
0
Extracting Tungsten from Wolframite — The Heaviest Practical Metal

Extracting Tungsten from Wolframite — The Heaviest Practical Metal

ដោយ PeterSE

បុរាណ

23
0
0
0
0
0
Extracting Chromium from Chromite — The Element That Paints the Rainbow
Hazardous content

Extracting Chromium from Chromite — The Element That Paints the Rainbow

ដោយ PeterSE

Specialty Alloys

10
0
0
0
0
0
Extracting Manganese from Pyrolusite — The Cave Painter's Black That Cleans Glass
Hazardous content

Extracting Manganese from Pyrolusite — The Cave Painter's Black That Cleans Glass

ដោយ PeterSE

ការជីកយករ៉ែ

17
0
0
0
2
0
Extracting Nickel from Pentlandite — The Devil's Copper That Wouldn't Behave
Hazardous content

Extracting Nickel from Pentlandite — The Devil's Copper That Wouldn't Behave

ដោយ PeterSE

តារាងខួប

11
0
0
0
0
0
Extracting Cobalt from Cobaltite — The Goblin Metal That Colors Glass Blue
Hazardous content

Extracting Cobalt from Cobaltite — The Goblin Metal That Colors Glass Blue

ដោយ PeterSE

រសាយនវិទ្យា

18
0
0
0
3
0
Extracting Bismuth from Bismuthinite — The Rainbow Metal from Sulfide Ore

Extracting Bismuth from Bismuthinite — The Rainbow Metal from Sulfide Ore

ដោយ PeterSE

ការធ្វើការលោហៈ

16
0
0
0
0
0
Extracting Antimony from Stibnite — The Ancient Cosmetic Turned Metal

Extracting Antimony from Stibnite — The Ancient Cosmetic Turned Metal

ដោយ PeterSE

តារាងខួប

22
0
0
0
1
0
Extracting Zinc from Sphalerite — Roasting and Reduction of the Invisible Metal

Extracting Zinc from Sphalerite — Roasting and Reduction of the Invisible Metal

ដោយ PeterSE

បុរាណ

15
0
0
0
5
0
Extracting Silver by Cupellation — Separating Noble Metal from Lead Ore

Extracting Silver by Cupellation — Separating Noble Metal from Lead Ore

ដោយ PeterSE

រសាយនវិទ្យា

21
0
0
0
2
0
ତସର ରେଶମ କୋକୁନ ସଂଗ୍ରହ — ଓଡ଼ିଶାର ବନ୍ୟ ରେଶମ

ତସର ରେଶମ କୋକୁନ ସଂଗ୍ରହ — ଓଡ଼ିଶାର ବନ୍ୟ ରେଶମ

ដោយ NaniPadmaIN

កសិកម្ម

30
0
0
0
0
0