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

វិទ្យាសាស្ត្រ

601 ប្លង់មាន • 11 ប្រភេទរង

ប្លង់ (601)

Preparing a Yarrow Wound Poultice — Prehistoric Herbal First Aid

Preparing a Yarrow Wound Poultice — Prehistoric Herbal First Aid

ដោយ BobBE

ពីមុនប្រវត្តិសាស្ត្រ

31
0
0
0
5
0
Rendering Beeswax from Honeycomb — The Original Natural Wax

Rendering Beeswax from Honeycomb — The Original Natural Wax

ដោយ BobBE

ជីវវិទ្យា

33
0
0
0
2
0
Hot Composting from Kitchen and Garden Waste — Engineering a Microbial Decomposition Reactor

Hot Composting from Kitchen and Garden Waste — Engineering a Microbial Decomposition Reactor

ដោយ BobBE

ជីវវិទ្យា

27
0
0
0
1
0
Cultivating Oyster Mushrooms on Straw — Growing Edible Fungi from Spore to Harvest

Cultivating Oyster Mushrooms on Straw — Growing Edible Fungi from Spore to Harvest

ដោយ BobBE

ជីវវិទ្យា

32
0
0
0
1
0
Growing a Kombucha SCOBY from Sweetened Tea — The Symbiotic Culture That Brews Itself

Growing a Kombucha SCOBY from Sweetened Tea — The Symbiotic Culture That Brews Itself

ដោយ BobBE

ជីវវិទ្យា

32
0
0
0
3
0
Culturing Yogurt from Bacterial Fermentation — The Oldest Probiotic Food

Culturing Yogurt from Bacterial Fermentation — The Oldest Probiotic Food

ដោយ BobBE

ជីវវិទ្យា

30
0
0
0
2
0
Cultivating a Sourdough Starter from Wild Yeast — The Living Culture Behind the World's Oldest Bread

Cultivating a Sourdough Starter from Wild Yeast — The Living Culture Behind the World's Oldest Bread

ដោយ BobBE

Yeast

26
0
0
0
4
0
Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum

Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum

ដោយ BobBE

ជីវវិទ្យា

28
0
0
0
0
0
Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain

Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain

ដោយ BobBE

ជីវវិទ្យា

23
0
0
0
2
0
Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold

Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold

ដោយ BobBE

ជីវវិទ្យា

30
0
0
0
2
0
Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science
គ្រោះថ្នាក់

Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science

ដោយ PeterSE

នុយក្លេអែរ

32
0
0
0
4
0
Understanding Promethium from Nuclear Fission — The Phantom Lanthanide

Understanding Promethium from Nuclear Fission — The Phantom Lanthanide

ដោយ PeterSE

នុយក្លេអែរ

33
0
0
0
1
0
Understanding Technetium from Nuclear Fission — The First Artificially Made Element

Understanding Technetium from Nuclear Fission — The First Artificially Made Element

ដោយ PeterSE

នុយក្លេអែរ

20
0
0
0
1
0
Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium

Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium

ដោយ PeterSE

នុយក្លេអែរ

25
0
0
0
1
0
Understanding Hafnium from Zircon — The Nuclear Fuel Rod Guardian

Understanding Hafnium from Zircon — The Nuclear Fuel Rod Guardian

ដោយ PeterSE

នុយក្លេអែរ

35
0
0
0
1
0
Understanding Indium from Zinc Ore — The Soft Metal Behind Every Touchscreen

Understanding Indium from Zinc Ore — The Soft Metal Behind Every Touchscreen

ដោយ PeterSE

រសាយនវិទ្យា

26
0
0
0
3
0
Understanding Rhodium from Platinum Group Ore — The Most Expensive Industrial Metal

Understanding Rhodium from Platinum Group Ore — The Most Expensive Industrial Metal

ដោយ PeterSE

រសាយនវិទ្យា

26
0
0
0
5
0
Understanding Rubidium from Lepidolite — The Alkali Metal That Defines Time
គ្រោះថ្នាក់

Understanding Rubidium from Lepidolite — The Alkali Metal That Defines Time

ដោយ PeterSE

រសាយនវិទ្យា

31
0
0
0
0
0
Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal

Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal

ដោយ PeterSE

រសាយនវិទ្យា

29
0
0
0
0
0
Understanding Germanium from Zinc Ore Processing — The Semiconductor That Started the Electronics Age
គ្រោះថ្នាក់

Understanding Germanium from Zinc Ore Processing — The Semiconductor That Started the Electronics Age

ដោយ PeterSE

រសាយនវិទ្យា

23
0
0
0
3
0