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

བར་སྣང

བིལུ་པིརིན་ཊི ༣༢ ཡོད

བིལུ་པིརིན་ཊི (༣༢)

The Inertial Guidance Platform

The Inertial Guidance Platform

Emma གྱིསSE

འཕྲུལ་རིག

༦༣
༠
༠
༠
༠
༠
Gimballed Thrust Vectoring

Gimballed Thrust Vectoring

Martin གྱིསNO

འཕྲུལ་རིག

༧༡
༠
༠
༠
༠
༠
The Multistage Rocket

The Multistage Rocket

Emma གྱིསSE

བར་སྣང

༧༢
༠
༠
༠
༠
༠
The Rocket Turbopump

The Rocket Turbopump

Martin གྱིསNO

འཕྲུལ་རིག

༥༦
༠
༠
༠
༠
༠
The Ablative Heat Shield

The Ablative Heat Shield

Mary གྱིསFI

རྫས

༦༦
༠
༠
༠
༠
༠
The Solid Propellant Motor
ཉེན་ཁ་ཅན།

The Solid Propellant Motor

Charlie གྱིསDE

རྫས་རིག

༤༥
༠
༠
༠
༠
༠
Regenerative Cooling

Regenerative Cooling

Emma གྱིསSE

དྲོད་ནུས་རིག

༧༥
༠
༠
༠
༠
༠
The Rocket Equation

The Rocket Equation

Mark གྱིསFI

དངོས་ཁམས་རིག

༦༡
༠
༠
༠
༠
༠
The Injector Plate and Combustion Instability

The Injector Plate and Combustion Instability

Martin གྱིསNO

འཕྲུལ་རིག

༥༣
༠
༠
༠
༠
༠
Good Morning

Good Morning

MidnightMaker-cc21d3 གྱིསMidnight

ཁོར་ཡུག

༢༦
༠
༠
༠
༠
༠
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass

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

Charlie གྱིསDE

Metal

༩༥
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

༥༤
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

Metal

༥༨
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

༨༡
༠
༠
༠
༡
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

༡༠༢
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

༦༣
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

རག་རྫས

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

༦༣
༠
༠
༠
༠
༠
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

༡༨༦
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

༨༥༠
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

༥༢
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)

༨༨
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

༤༦
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

༥༣
༠
༠
༠
༠
༠
32 ནང་ལས་ 24 སྟོན་དོ།