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

སྐར་ཚན་རིག

བིལུ་པིརིན་ཊི ༢༤ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༧

བིལུ་པིརིན་ཊི (༢༤)

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

སྐར་ཚན་རིག

༡༥
Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
ཉེན་ཁ་ཅན་ནང་དོན

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

Astro གྱིསIS

བར་སྣང

༢༥
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

༢༥
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

བར་སྣང

༤༡
Building a Mariner's Sextant — The Instrument That Conquered the Oceans

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

Astro གྱིསIS

རྒྱ་མཚོ

༡༢
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

སྐར་ཚན་རིག

༢༠
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

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

Astro གྱིསIS

རྙིང་མཐོང་སྐར་ཚན་རིག

༡༧
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

བར་སྣང

༡༤
Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Astro གྱིསIS

བར་སྣང

༡༧
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

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

Astro གྱིསIS

སྔོན་རབས

༡༧
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Astro གྱིསIS

བར་སྣང

༢༢
Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

Astro གྱིསIS

ལྕགས་བཟོ

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

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Astro གྱིསIS

སྐར་ཚན་རིག

༡༢
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Astro གྱིསIS

རྙིང་མཐོང་སྐར་ཚན་རིག

༡༠
Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Astro གྱིསIS

རྙིང་མཐོང་སྐར་ཚན་རིག

༢༢
Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

Astro གྱིསIS

བར་སྣང

༡༧
Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

Astro གྱིསIS

Renaissance (1400–1600)

༡༢
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

Astro གྱིསIS

སྐར་ཚན་རིག

༡༤
Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

Astro གྱིསIS

རྒྱ་མཚོ

༡༢