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

ការជីកយករ៉ែ

81 ប្លង់មាន

ប្លង់ (81)

Ingersoll Rock Drill

Ingersoll Rock Drill

ដោយ ForgeNO

ការផលិតកាត់បន្ថយ

21
0
0
0
0
0
Understanding Sodium from Halite — The Reactive Metal That Powers Life and Industry

Understanding Sodium from Halite — The Reactive Metal That Powers Life and Industry

ដោយ PeterSE

រសាយនវិទ្យា

24
0
0
0
2
0
Understanding Protactinium from Uranium Ore — The Elusive Parent of Actinium

Understanding Protactinium from Uranium Ore — The Elusive Parent of Actinium

ដោយ PeterSE

រសាយនវិទ្យា

25
0
0
0
4
0
Understanding Actinium from Uranium Ore — The Element That Named the Actinides

Understanding Actinium from Uranium Ore — The Element That Named the Actinides

ដោយ PeterSE

រសាយនវិទ្យា

24
0
0
0
5
0
Understanding Radium from Uranium Ore — The Glowing Element That Changed Science and Medicine

Understanding Radium from Uranium Ore — The Glowing Element That Changed Science and Medicine

ដោយ PeterSE

រសាយនវិទ្យា

27
0
0
0
5
0
Understanding Francium from Radioactive Decay — The Most Unstable Natural Element

Understanding Francium from Radioactive Decay — The Most Unstable Natural Element

ដោយ PeterSE

រសាយនវិទ្យា

47
0
0
0
0
0
Understanding Radon from Radioactive Decay — The Invisible Killer in Your Basement

Understanding Radon from Radioactive Decay — The Invisible Killer in Your Basement

ដោយ PeterSE

រសាយនវិទ្យា

20
0
0
0
0
0
Understanding Astatine from Cyclotron Synthesis — The Rarest Naturally Occurring Element

Understanding Astatine from Cyclotron Synthesis — The Rarest Naturally Occurring Element

ដោយ PeterSE

រសាយនវិទ្យា

34
0
0
0
0
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 Xenon from Air Separation — The Strangest Noble Gas

Understanding Xenon from Air Separation — The Strangest Noble Gas

ដោយ PeterSE

រសាយនវិទ្យា

29
0
0
0
3
0
Understanding Krypton from Air Separation — The Hidden Gas That Once Defined the Meter

Understanding Krypton from Air Separation — The Hidden Gas That Once Defined the Meter

ដោយ PeterSE

រសាយនវិទ្យា

31
0
0
0
3
0
Understanding Argon from Air Separation — The Invisible Shield Gas

Understanding Argon from Air Separation — The Invisible Shield Gas

ដោយ PeterSE

រសាយនវិទ្យា

23
0
0
0
3
0
Understanding Neon from Air Separation — The Gas That Lit the Modern City

Understanding Neon from Air Separation — The Gas That Lit the Modern City

ដោយ PeterSE

រសាយនវិទ្យា

34
0
0
0
3
0
Understanding Helium from Natural Gas — The Element That Escapes Earth Forever

Understanding Helium from Natural Gas — The Element That Escapes Earth Forever

ដោយ PeterSE

រសាយនវិទ្យា

22
0
0
0
0
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 Thallium from Pyrite Smelting — The Poisoner's Element
គ្រោះថ្នាក់

Understanding Thallium from Pyrite Smelting — The Poisoner's Element

ដោយ PeterSE

រសាយនវិទ្យា

29
0
0
0
0
0
Understanding Iridium from Platinum Group Ores — The Asteroid Impact Witness

Understanding Iridium from Platinum Group Ores — The Asteroid Impact Witness

ដោយ PeterSE

រសាយនវិទ្យា

30
0
0
0
5
0
Understanding Osmium from Platinum Group Ores — The Densest Element on Earth
គ្រោះថ្នាក់

Understanding Osmium from Platinum Group Ores — The Densest Element on Earth

ដោយ PeterSE

រសាយនវិទ្យា

28
0
0
0
5
0