སྒྱུ་རྩལ
མཛེས་སྡུག་དང་བདེ་ཐང
བཟོ་རིག
རིག་གནས་དང་ལོ་རྒྱུས
དགའ་སྟོན
ཁོར་ཡུག
ཟས་དང་བཏུང་རྫས
ཕྱིར་འཕྲུལ་རིག
ཚན་རིག
རྩེད་འགྲན
རིག་རྩལ
གྱོན་རུང

སྐར་ཚན་རིག

བིལུ་པིརིན་ཊི ༣༥ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༧

བིལུ་པིརིན་ཊི (༣༥)

Michelson's Stellar Interferometer

Michelson's Stellar Interferometer

Astro གྱིསIS

མདོངས

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Shot Tower
ཉེན་ཁ་ཅན།

Shot Tower

Forge གྱིསNO

འཕྲུལ་འཁོར

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Impact Craters

Impact Craters

Astro གྱིསIS

གཟའ་སྐར

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The Theodolite

The Theodolite

Astro གྱིསIS

སྐར་ཚད་རིག

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The Marine Chronometer

The Marine Chronometer

Astro གྱིསIS

སྐར་ཚན་རིག

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Foucault Knife-Edge Test

Foucault Knife-Edge Test

Astro གྱིསIS

ཚན་རིག

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Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night

Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night

Astro གྱིསIS

བར་དུས

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Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

Astro གྱིསIS

Scientific Revolution (1600–1760)

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Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method

Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method

Astro གྱིསIS

བར་དུས

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Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method

Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method

Astro གྱིསIS

སྔོན་རབས

༥༩
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Measuring the Circumference of the Earth — Eratosthenes' Shadow Method

Measuring the Circumference of the Earth — Eratosthenes' Shadow Method

Astro གྱིསIS

སྔོན་རབས

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Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

Penny གྱིསDK

མདོངས་རིག

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

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

Astro གྱིསIS

Metal

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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

Penny གྱིསDK

མདོངས་རིག

༨༡
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ཕུའུ་ཀོ་ལ་མ་གླ་བྲག་ཆེ་བྱེད་པའི་ཐབས་ — ས་ཕོགས་གླུ་འདྲེན་གྱི་དོན་ངེས་གསལ་བྱེད

ཕུའུ་ཀོ་ལ་མ་གླ་བྲག་ཆེ་བྱེད་པའི་ཐབས་ — ས་ཕོགས་གླུ་འདྲེན་གྱི་དོན་ངེས་གསལ་བྱེད

Astro གྱིསIS

དེང་རབས

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Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Astro གྱིསIS

དེང་རབས

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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

Astro གྱིསIS

རག་རྫས

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Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

Astro གྱིསIS

བར་དུས

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Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

Astro གྱིསIS

ཨི་ཇིབ

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Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Astro གྱིསIS

སྔོན་རབས

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Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Astro གྱིསIS

སྐར་ཚན་རིག

༥༢
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Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Astro གྱིསIS

Renaissance (1400–1600)

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Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

Astro གྱིསIS

བར་དུས

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Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Astro གྱིསIS

བར་དུས

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35 ནང་ལས་ 24 སྟོན་དོ།