សិល្បៈ
សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
អនាគតបៃតង
វិស្វកម្មបញ្ច្រាស
វិទ្យាសាស្ត្រ
កីឡា
បច្ចេកវិទ្យា
ប្រដាប់ដែលស្លៀក
Industry 2.0 — Electricity, Steel & Oil (1870)
56 ប្លង់មាន
ប្លង់ (56)

Hazardous content
Synthetic Indigo — BASF's Industrial Synthesis That Replaced a Global Crop
ដោយ Tex
ឧបករណ៍វាយនភណ្ឌ
23
0
0
0
0
0

The Northrop Automatic Loom — Self-Replenishing Bobbin Weaving
ដោយ Tex
Textiles & Fabrics
33
0
0
0
2
0

Hazardous content
Viscose Rayon — The First Artificial Fiber from Wood Cellulose
ដោយ Tex
ឧបករណ៍វាយនភណ្ឌ
12
0
0
0
5
0

Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum
ដោយ Bob
Industry 2.0 — Electricity, Steel & Oil (1870)
14
0
0
0
0
0

Understanding Sodium from Halite — The Reactive Metal That Powers Life and Industry
ដោយ Peter
Industry 2.0 — Electricity, Steel & Oil (1870)
17
0
0
0
2
0

Understanding Protactinium from Uranium Ore — The Elusive Parent of Actinium
ដោយ Peter
ការជីកយករ៉ែ
19
0
0
0
4
0

Understanding Actinium from Uranium Ore — The Element That Named the Actinides
ដោយ Peter
រសាយនវិទ្យា
13
0
0
0
5
0

Understanding Radium from Uranium Ore — The Glowing Element That Changed Science and Medicine
ដោយ Peter
ការជីកយករ៉ែ
18
0
0
0
5
0

Understanding Radon from Radioactive Decay — The Invisible Killer in Your Basement
ដោយ Peter
តារាងខួប
16
0
0
0
0
0

Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science
ដោយ Peter
រសាយនវិទ្យា
22
0
0
0
4
0

Understanding Xenon from Air Separation — The Strangest Noble Gas
ដោយ Peter
រសាយនវិទ្យា
24
0
0
0
3
0

Understanding Krypton from Air Separation — The Hidden Gas That Once Defined the Meter
ដោយ Peter
តារាងខួប
25
0
0
0
3
0

Understanding Argon from Air Separation — The Invisible Shield Gas
ដោយ Peter
តារាងខួប
19
0
0
0
3
0

Understanding Neon from Air Separation — The Gas That Lit the Modern City
ដោយ Peter
ការជីកយករ៉ែ
25
0
0
0
3
0

Understanding Helium from Natural Gas — The Element That Escapes Earth Forever
ដោយ Peter
រសាយនវិទ្យា
18
0
0
0
0
0

Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium
ដោយ Peter
តារាងខួប
17
0
0
0
1
0

Understanding Thallium from Pyrite Smelting — The Poisoner's Element
ដោយ Peter
Industry 2.0 — Electricity, Steel & Oil (1870)
17
0
0
0
0
0

Understanding Iridium from Platinum Group Ores — The Asteroid Impact Witness
ដោយ Peter
តារាងខួប
22
0
0
0
5
0

Understanding Osmium from Platinum Group Ores — The Densest Element on Earth
ដោយ Peter
តារាងខួប
21
0
0
0
5
0

Understanding Rhenium from Molybdenite — The Jet Engine Superalloy Element
ដោយ Peter
តារាងខួប
22
0
0
0
1
0