សិល្បៈ
សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
អនាគតបៃតង
វិស្វកម្មបញ្ច្រាស
វិទ្យាសាស្ត្រ
កីឡា
បច្ចេកវិទ្យា
ប្រដាប់ដែលស្លៀក
សម័យកាល
404 ប្លង់មាន • 15 ប្រភេទរង
រុករកប្រភេទរង
វីកឃីង
រ៉ូម៉ាំង
អេហ្ស៊ីប
ក្រិកបុរាណ
សម័យអេដូ
ពីមុនប្រវត្តិសាស្ត្រ
បុរាណ
មជ្ឈិមសតវត្ស
សម័យទំនើប
ប្រចាំសម័យថ្មី
Industry 1.0 — Steam & Mechanization (1760–1840)
Industry 2.0 — Electricity & Mass Production (1870–1914)
Industry 3.0 — Computing & Automation (1960–2000)
Industry 4.0 — IoT & Cyber-Physical Systems (2011–present)
Renaissance (1400–1600)
ប្លង់ (404)
Hazardous content
Extracting Neodymium-Rich Rare Earth Oxide from Monazite — The Magnet Metal That Reshaped Technology
by Peter
Modern
0
0
0
0
8
0
Hazardous content
Extracting Boron Compounds from Borax — The Desert Mineral That Cleans, Fluxes, and Strengthens Glass
by Peter
Chemistry
3
0
0
0
5
0
Hazardous content
Extracting Lithium from Spodumene — The Lightest Metal That Powers the Future
by Peter
Modern
4
0
0
0
6
0
Hazardous content
Alloying Steel from Iron and Carbon — The Metal That Built the Modern World
by Mary
Metalworking
2
0
0
0
4
0
Hazardous content
Alloying Brass from Copper and Zinc — The Golden Metal That Is Neither Gold Nor Bronze
by Mary
Chemistry
0
0
0
0
6
0
Hazardous content
Making Black Powder from Saltpeter, Sulfur, and Charcoal — The Mixture That Changed the World
by Charlie
Weaponry
2
0
0
0
6
0
Building a Box Bellows — The Breath That Makes Metal Obey Fire
by Emma
Woodworking
1
0
0
0
12
0
Making Soda-Lime Glass from Raw Materials — The Recipe That Has Not Changed in 5,000 Years
by Mary
Ancient
2
0
0
0
10
0
Understanding Oxygen Through Combustion — The Element That Makes Fire Breathe
by Peter
Periodic Table
6
0
0
0
0
0
Generating Hydrogen Gas from Acid and Metal — The Lightest Element in the Universe
by Peter
Ancient
5
0
0
0
0
0
Understanding Carbon Through Charcoal Making — The Element of Life and Fire
by Peter
Chemistry
6
0
0
0
1
0
Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White
by Peter
Chemistry
10
0
0
0
1
0
Growing Saltpeter from Niter Beds — The Explosive Element in Every Living Thing
by Peter
Periodic Table
10
0
0
0
1
0
Recognizing Silicon in Nature — From Flint Nodules to Quartz Crystals
by Peter
Periodic Table
6
0
0
0
2
0
Burning Quicklime from Limestone — The Element That Built Civilization
by Peter
Ancient
5
0
0
0
2
0
Extracting Potash from Wood Ash — The Alkali Element Hidden in Every Fire
by Peter
Raw Materials
6
0
0
0
3
0
Understanding Tellurium from Calaverite — The Rarest Stable Metalloid from Gold Ore
by Peter
Ancient
1
0
0
0
0
0
Understanding Zirconium from Zircon — The Ancient Gemstone That Clocks Earth's Age
by Peter
Ancient
0
0
0
0
0
0
Hazardous content
Understanding Uranium from Uraninite — The Element That Changed Everything
by Peter
Mining
0
0
0
0
0
0
Hazardous content
Understanding Vanadium from Vanadinite — The Rainbow-Blooded Metal Named for a Goddess
by Peter
Ancient
4
0
0
0
0
0