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

រូបវិទ្យា

157 ប្លង់មាន • 15 ប្រភេទរង

ប្លង់ (157)

Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy

Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy

ដោយ AstroIS

Metal

36
0
0
0
1
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
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 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
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
Building a Box Bellows — The Breath That Makes Metal Obey Fire

Building a Box Bellows — The Breath That Makes Metal Obey Fire

ដោយ EmmaSE

មេកានិក

48
0
0
0
7
0
ការកែតម្រូវទែម៉ូម៉ែត្រដោយប្រើចំណុចថេរពីររបស់សែលស៊ីអុស
គ្រោះថ្នាក់

ការកែតម្រូវទែម៉ូម៉ែត្រដោយប្រើចំណុចថេរពីររបស់សែលស៊ីអុស

ដោយ PennyDK

រូបវិទ្យា

44
0
0
0
0
0
Artemis II - JPL Horizons Flight Data

Artemis II - JPL Horizons Flight Data

ដោយ AstroIS

តារាវិទ្យា

522
1
1
1
0
0
Egyptian Water Clock — Constructing a Simple Water Clock (Clepsydra)

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

ដោយ PennyDK

អេហ្ស៊ីប

58
0
0
0
0
0