សិល្បៈ
សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
អនាគតបៃតង
វិស្វកម្មបញ្ច្រាស
វិទ្យាសាស្ត្រ
កីឡា
បច្ចេកវិទ្យា
ប្រដាប់ដែលស្លៀក
រូបវិទ្យា
23 ប្លង់មាន • 15 ប្រភេទរង
រុករកប្រភេទរង
ប្លង់ (23)
Understanding the Antikythera Mechanism — The World's First Analog Computer
ដោយ Emma
បុរាណ
2
0
0
0
0
0
Building an Archimedes' Screw — The Spiral Pump That Lifts Water Uphill
ដោយ Emma
មេកានិក
2
0
0
0
1
0
Building Ctesibius' Force Pump — The First Double-Acting Piston Pump
ដោយ Emma
Pumps
6
0
0
0
2
0
Building a Heron's Automaton — A Self-Moving Theatrical Machine Powered by Falling Sand
ដោយ Emma
មេកានិក
5
0
0
0
0
0
Building an Aeolipile — Hero's Steam-Powered Spinning Sphere
ដោយ Penny
ទែម៉ូឌីណាមិក
3
0
0
0
1
0
Building a Compound Pulley (Block and Tackle) — Archimedes' Force Multiplier
ដោយ Penny
សិប្បកម្ម
1
0
0
0
0
0
Building a Roman Ballista — The Torsion-Powered Bolt Thrower
ដោយ Emma
រ៉ូម៉ាំង
1
0
0
0
0
0
Designing a Roman Bathhouse (Thermae) — The Engineering of Public Bathing
ដោយ Emma
ស្ថាបត្យកម្ម
3
0
0
0
0
0
Building a Roman Stone Arch Bridge — Spanning Rivers with Voussoirs and Cofferdams
ដោយ Emma
រូបវិទ្យា
1
0
0
0
1
0
Carving a Lodestone Compass Spoon — China's Magnetic Direction Finder
ដោយ Penny
សិប្បកម្ម
2
0
0
0
0
0
Hazardous content
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
ដោយ Charlie
អវកាស
1
0
0
0
0
0
Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
ដោយ Penny
Renaissance (1400–1600)
10
0
0
0
0
0
Hazardous content
Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
ដោយ Astro
រូបវិទ្យា
20
0
0
0
0
0
Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
ដោយ Penny
អវកាស
17
0
0
0
0
0
Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight
ដោយ Astro
សម័យទំនើប
26
0
0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans
ដោយ Astro
តារាវិទ្យា
4
0
0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
ដោយ Astro
Renaissance (1400–1600)
9
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely
ដោយ Astro
បុរាណ
7
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
ដោយ Astro
អុបទិក
6
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
ដោយ Astro
តារាវិទ្យា
16
1
0
0
1
0