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ប្លង់វិទ្យាសាស្ត្រ

វិទ្យាសាស្ត្រ

2,320 ប្លង់មាន • 11 ប្រភេទរង

រុករកប្រភេទរង

Mathematics

ភូគព្ភសាស្ត្រ

វេជ្ជសាស្ត្រ

រូបវិទ្យា

វិស្វកម្ម

រសាយនវិទ្យា

ជីវវិទ្យា

តារាវិទ្យា

គណនា

បុរាណវិទ្យា

កសិកម្ម

ប្លង់ (2,320)

Making Watercolour Paint from Raw Pigments — Gum Arabic Binder

Making Watercolour Paint from Raw Pigments — Gum Arabic Binder

ដោយ CharlieDE

ការគូរ

227
0
0
2
2
0
Making Natural Earth Pigments from Soil and Rocks — Collecting and Processing

Making Natural Earth Pigments from Soil and Rocks — Collecting and Processing

ដោយ MaryFI

ការគូរ

159
0
0
0
8
0
Casting Clear Epoxy Resin Paperweights — Embedding Objects in Resin

Casting Clear Epoxy Resin Paperweights — Embedding Objects in Resin

ដោយ MaryFI

Industry 3.0 — Assembly Line & Mass Production (1913)

74
0
0
0
0
0
Making Biochar for Soil Amendment — Pyrolyzed Carbon for Agriculture

Making Biochar for Soil Amendment — Pyrolyzed Carbon for Agriculture

ដោយ KarenSE

កសិកម្ម

89
0
0
0
1
0
Growing Mycelium Packaging Material — Biodegradable Foam Alternative

Growing Mycelium Packaging Material — Biodegradable Foam Alternative

ដោយ KarenSE

Industry 4.0 — Computers & Digital Automation (1960)

94
0
0
0
0
0
Setting Up a Vermicompost Worm Bin — Indoor Composting with Red Wigglers

Setting Up a Vermicompost Worm Bin — Indoor Composting with Red Wigglers

ដោយ KarenSE

កសិកម្ម

76
0
0
0
0
0
Making Soy Wax Container Candles — Clean-Burning Candle Craft

Making Soy Wax Container Candles — Clean-Burning Candle Craft

ដោយ YourGrandmaIS

រសាយនវិទ្យា

70
0
0
0
0
0
Making Reusable Beeswax Food Wraps — Sustainable Kitchen Alternative

Making Reusable Beeswax Food Wraps — Sustainable Kitchen Alternative

ដោយ KarenSE

ផ្ទះបាយ

67
0
0
0
0
0
Making a pH Indicator from Red Cabbage — Anthocyanin Chemistry

Making a pH Indicator from Red Cabbage — Anthocyanin Chemistry

ដោយ PeterSE

រសាយនវិទ្យា

135
0
0
0
1
0
Making Binchotan White Charcoal in a Kiln — Japanese Activated Charcoal

Making Binchotan White Charcoal in a Kiln — Japanese Activated Charcoal

ដោយ CharlieDE

សម័យអេដូ

271
0
0
0
0
0
Making Iron Gall Ink from Oak Galls — Medieval Writing Ink

Making Iron Gall Ink from Oak Galls — Medieval Writing Ink

ដោយ CharlieDE

មជ្ឈិមសតវត្ស

127
0
0
0
1
0
Carving a Portable Roman Sundial — Hemispherical Scaphe

Carving a Portable Roman Sundial — Hemispherical Scaphe

ដោយ PennyDK

រ៉ូម៉ាំង

113
0
0
0
3
0
Greek Sundial — Carving a Hemispherical Sundial

Greek Sundial — Carving a Hemispherical Sundial

ដោយ PennyDK

ក្រិកបុរាណ

90
0
0
0
6
0
Greek Olive Oil — Pressing Olive Oil with a Trapetum Mill

Greek Olive Oil — Pressing Olive Oil with a Trapetum Mill

ដោយ TheChefDK

ក្រិកបុរាណ

83
0
0
0
0
0
Egyptian Water Clock — Constructing a Simple Water Clock (Clepsydra)

Egyptian Water Clock — Constructing a Simple Water Clock (Clepsydra)

ដោយ PennyDK

អេហ្ស៊ីប

108
0
0
0
0
0
Egyptian Beeswax Candle — Making Beeswax Candles with Rush Wicks

Egyptian Beeswax Candle — Making Beeswax Candles with Rush Wicks

ដោយ YourGrandmaIS

អេហ្ស៊ីប

74
0
0
0
1
0
Egyptian Grain Silo — Constructing a Beehive-Shaped Grain Silo

Egyptian Grain Silo — Constructing a Beehive-Shaped Grain Silo

ដោយ EmmaSE

អេហ្ស៊ីប

111
0
0
0
0
0
Egyptian Shaduf Irrigation — Operating a Shaduf for Nile Irrigation

Egyptian Shaduf Irrigation — Operating a Shaduf for Nile Irrigation

ដោយ EmmaSE

អេហ្ស៊ីប

100
0
0
0
0
0
Egyptian Blue Pigment — Grinding Egyptian Blue from Copper Silicate

Egyptian Blue Pigment — Grinding Egyptian Blue from Copper Silicate

ដោយ CharlieDE

អេហ្ស៊ីប

87
0
0
0
3
0
Building a Shaduf Irrigation Lever — Counterweighted Water Lift

Building a Shaduf Irrigation Lever — Counterweighted Water Lift

ដោយ EmmaSE

បុរាណ

148
0
0
0
2
0
Constructing a Wooden Ard Plow — The Scratch Plow

Constructing a Wooden Ard Plow — The Scratch Plow

ដោយ WoodyNO

បុរាណ

229
0
0
0
0
0
Hafting a Flint-Bladed Grain Sickle — Composite Harvesting Tool

Hafting a Flint-Bladed Grain Sickle — Composite Harvesting Tool

ដោយ ForgeNO

បុរាណ

97
0
0
0
0
0
Building a Lever-and-Weight Olive Press — Mechanical Extraction

Building a Lever-and-Weight Olive Press — Mechanical Extraction

ដោយ EmmaSE

បុរាណ

199
0
0
0
1
0
Preparing Carbon Ink from Soot and Gum — Ancient Writing Ink

Preparing Carbon Ink from Soot and Gum — Ancient Writing Ink

ដោយ CharlieDE

បុរាណ

169
0
0
0
4
0
បង្ហាញ 24 ក្នុងចំណោម 2320