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ប្លង់Culture And Historyសម័យកាល

សម័យកាល

1,383 ប្លង់មាន • 17 ប្រភេទរង

រុករកប្រភេទរង

វីកឃីង

រ៉ូម៉ាំង

អេហ្ស៊ីប

ក្រិកបុរាណ

សម័យអេដូ

ពីមុនប្រវត្តិសាស្ត្រ

បុរាណ

មជ្ឈិមសតវត្ស

សម័យទំនើប

ប្រចាំសម័យថ្មី

Industry 1.0 — Steam & Mechanization (1760)

Industry 2.0 — Electricity, Steel & Oil (1870)

Industry 3.0 — Assembly Line & Mass Production (1913)

Industry 4.0 — Computers & Digital Automation (1960)

Industry 5.0 — Open Knowledge & AI Collaboration (2026)

Renaissance (1400–1600)

Scientific Revolution (1600–1760)

ប្លង់ (1,383)

Honey as a Wound Dressing — The Oldest Antimicrobial Medicine Known to Humanity

Honey as a Wound Dressing — The Oldest Antimicrobial Medicine Known to Humanity

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

23
0
0
0
3
0
Plantain Leaf Poultice — The Universal Wound Herb Found on Every Continent

Plantain Leaf Poultice — The Universal Wound Herb Found on Every Continent

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

52
0
0
0
1
0
Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion

Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

32
0
0
0
5
0
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass

Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass

ដោយ CharlieDE

Metal

35
0
0
0
0
0
Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

ដោយ PennyDK

អុបទិក

24
0
0
0
0
0
Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

ដោយ PennyDK

អុបទិក

38
0
0
0
1
0
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
គ្រោះថ្នាក់

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge

ដោយ PeterSE

Metal

30
0
0
0
0
0
Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight

Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight

ដោយ AstroIS

សម័យទំនើប

63
0
0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Building a Mariner's Sextant — The Instrument That Conquered the Oceans

ដោយ AstroIS

សម័យទំនើប

23
0
0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

ដោយ AstroIS

លង្ហិន

41
0
0
0
0
0
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

ដោយ AstroIS

មជ្ឈិមសតវត្ស

34
0
0
0
0
0
Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

ដោយ AstroIS

អេហ្ស៊ីប

41
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

ដោយ AstroIS

បុរាណ

91
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

ដោយ AstroIS

តារាវិទ្យា

24
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

ដោយ AstroIS

Renaissance (1400–1600)

33
1
0
0
2
0
Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

ដោយ AstroIS

មជ្ឈិមសតវត្ស

23
0
0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

ដោយ AstroIS

មជ្ឈិមសតវត្ស

15
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

ដោយ AstroIS

វីកឃីង

29
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

ដោយ AstroIS

វីកឃីង

28
0
0
0
1
0
Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

ដោយ AstroIS

Renaissance (1400–1600)

39
0
0
0
1
0
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