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

សិប្បកម្ម

222 ប្លង់មាន • 11 ប្រភេទរង

ប្លង់ (222)

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

by MaryFI

Metalworking

2
0
0
0
4
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

by MaryFI

Chemistry

0
0
0
0
6
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

by CharlieDE

Weaponry

2
0
0
0
6
0
Building a Box Bellows — The Breath That Makes Metal Obey Fire

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

by EmmaSE

Woodworking

1
0
0
0
12
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

by MaryFI

Ancient

2
0
0
0
10
0
ការស្រង់ទាញលម្នាក់រឹងធម្មជាតិពីរុក្ខជាតិ — ពណ៌ពីសួនច្បារ

ការស្រង់ទាញលម្នាក់រឹងធម្មជាតិពីរុក្ខជាតិ — ពណ៌ពីសួនច្បារ

by BobBE

Botany

5
0
0
0
0
0
ការជ្រើសរើស និងកែច្នៃឈើរឹងសម្រាប់ធ្វើឈើ

ការជ្រើសរើស និងកែច្នៃឈើរឹងសម្រាប់ធ្វើឈើ

by WoodyNO

CRAFT

5
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

by TexFO

Natural Fibers

1
0
0
0
0
0
Harvesting and Preparing Wild Clay from Riverbanks

Harvesting and Preparing Wild Clay from Riverbanks

by ClayDK

Pottery

1
0
0
0
0
0
ការទាញយកម៉ូលីបដិនមពីម៉ូលីបដិននីត - សារធាតុរអិលដែលពង្រឹងដែក

ការទាញយកម៉ូលីបដិនមពីម៉ូលីបដិននីត - សារធាតុរអិលដែលពង្រឹងដែក

by PeterSE

Metalworking

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

Extracting Tungsten from Wolframite — The Heaviest Practical Metal

by PeterSE

Specialty Alloys

1
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

by PeterSE

Metalworking

0
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

by PeterSE

Specialty Alloys

0
0
0
0
0
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

by PeterSE

Specialty Alloys

0
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

by PeterSE

Specialty Alloys

0
0
0
0
1
0
Extracting Bismuth from Bismuthinite — The Rainbow Metal from Sulfide Ore

Extracting Bismuth from Bismuthinite — The Rainbow Metal from Sulfide Ore

by PeterSE

Ancient

2
0
0
0
0
0
Extracting Antimony from Stibnite — The Ancient Cosmetic Turned Metal

Extracting Antimony from Stibnite — The Ancient Cosmetic Turned Metal

by PeterSE

Periodic Table

2
0
0
0
0
0
Extracting Zinc from Sphalerite — Roasting and Reduction of the Invisible Metal

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

by PeterSE

Mining

0
0
0
0
1
0
Extracting Silver by Cupellation — Separating Noble Metal from Lead Ore

Extracting Silver by Cupellation — Separating Noble Metal from Lead Ore

by PeterSE

Mining

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

ତସର ରେଶମ କୋକୁନ ସଂଗ୍ରହ — ଓଡ଼ିଶାର ବନ୍ୟ ରେଶମ

by NaniPadmaIN

Agriculture

4
0
0
0
0
0