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

ཚན་རིག

བིལུ་པིརིན་ཊི ༢,༤༨༠ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༡

བིལུ་པིརིན་ཊི (༢,༤༨༠)

Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion

Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion

Bob གྱིསBE

སྔོན་ལོ

༦༤
༠
༠
༠
༥
༠
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
ཉེན་ཁ་ཅན།

Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass

Charlie གྱིསDE

བཟོ་གྲྭ

༡༡༥
༠
༠
༠
༠
༠
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

༥༩
༠
༠
༠
༠
༠
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

མདོངས་རིག

༨༣
༠
༠
༠
༡
༠
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

༡༠༡
༠
༠
༠
༡
༠
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
ཉེན་ཁ་ཅན།

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge

Peter གྱིསSE

སྔོན་རབས

༥༥
༠
༠
༠
༢
༠
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

༡༢༤
༠
༠
༠
༠
༠
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

༧༦
༠
༠
༠
༠
༠
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

Renaissance (1400–1600)

༧༥
༠
༠
༠
༠
༠
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

༧༣
༠
༠
༠
༠
༠
མར་ཁེཏ་ (merkhet) བཟོ་ནི་ — བྱང་ཕྱོགས་ངོ་མ་ འཚོལ་ནིའི་དོན་ལུ་ སྐར་མའི་ བརྒལ་ལམ་ བལྟ་བའི་ ཨི་ཇིཔཊ་གི་ ལག་ཆས་

མར་ཁེཏ་ (merkhet) བཟོ་ནི་ — བྱང་ཕྱོགས་ངོ་མ་ འཚོལ་ནིའི་དོན་ལུ་ སྐར་མའི་ བརྒལ་ལམ་ བལྟ་བའི་ ཨི་ཇིཔཊ་གི་ ལག་ཆས་

Astro གྱིསIS

ཨི་ཇིབ

༢༤༡
༠
༠
༠
༠
༠
Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Astro གྱིསIS

སྔོན་རབས

༨༥༦
༠
༠
༠
༠
༠
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

༥༥
༠
༠
༠
༠
༠
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Astro གྱིསIS

Renaissance (1400–1600)

༡༠༤
༡
༠
༠
༢
༠
Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

Astro གྱིསIS

བར་དུས

༥༥
༠
༠
༠
༠
༠
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

༦༡
༠
༠
༠
༠
༠
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

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

Astro གྱིསIS

ཝཱི་ཀིང

༦༧
༠
༠
༠
༡
༠
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

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

Astro གྱིསIS

ཝཱི་ཀིང

༦༤
༠
༠
༠
༡
༠
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

Renaissance (1400–1600)

༧༧
༠
༠
༠
༡
༠
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

Renaissance (1400–1600)

༧༠
༠
༠
༠
༤
༠
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)

༨༣
༠
༠
༠
༣
༠
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

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

Astro གྱིསIS

བར་དུས

༡༠༥
༠
༠
༠
༦
༠
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

སྔོན་རབས

༨༧
༠
༠
༠
༧
༠
Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

Astro གྱིསIS

སྔོན་རབས

༩༥
༠
༠
༠
༣
༠
2480 ནང་ལས་ 24 སྟོན་དོ།