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

རྫས་རིག

བིལུ་པིརིན་ཊི ༢༣༨ ཡོད • ཡན་ལག་དབྱེ་རིམ ༢༢

བིལུ་པིརིན་ཊི (༢༣༨)

Building a Roman Concrete Dome — The Unreinforced Vault That Crowned the Pantheon

Building a Roman Concrete Dome — The Unreinforced Vault That Crowned the Pantheon

Emma གྱིསSE

རོ་མ

༤༤
Making Float Glass — Pilkington's Molten Tin Process That Windows Every Building on Earth

Making Float Glass — Pilkington's Molten Tin Process That Windows Every Building on Earth

Charlie གྱིསDE

དེང་རབས

༢༩
Making Lead Crystal Glass — Ravenscroft's Brilliant Flint Glass
ཉེན་ཁ་ཅན།

Making Lead Crystal Glass — Ravenscroft's Brilliant Flint Glass

Charlie གྱིསDE

དེང་རབས

༢༦
Making Venetian Cristallo — The Water-Clear Glass of Murano

Making Venetian Cristallo — The Water-Clear Glass of Murano

Charlie གྱིསDE

སྔོན་རབས

༣༦
Making Roman Millefiori Glass — Fusing Mosaic Cane Slices into a Patterned Dish

Making Roman Millefiori Glass — Fusing Mosaic Cane Slices into a Patterned Dish

Charlie གྱིསDE

སྡེབ་རི

༣༣
Casting a Glass Bowl in an Open Mold — Frit-Fusing the Oldest Hollow Glassware

Casting a Glass Bowl in an Open Mold — Frit-Fusing the Oldest Hollow Glassware

Charlie གྱིསDE

སྔོན་རབས

༢༣
Preparing Mayan Xocolātl — The Bitter Cacao Drink of the Gods

Preparing Mayan Xocolātl — The Bitter Cacao Drink of the Gods

TheChef གྱིསDK

སྔོན་རབས

༤༤
The Berserker's Fly Agaric — How Amanita muscaria May Have Fuelled Viking Battle Rage

The Berserker's Fly Agaric — How Amanita muscaria May Have Fuelled Viking Battle Rage

Bob གྱིསBE

ཝཱི་ཀིང

༥༡
Building a Copper Alembic Still — Islamic Golden Age Distillation

Building a Copper Alembic Still — Islamic Golden Age Distillation

Charlie གྱིསDE

བར་དུས

༡༤
Wan Hu's Rocket Chair — The First Attempt at Human Rocket Flight
ཉེན་ཁ་ཅན།

Wan Hu's Rocket Chair — The First Attempt at Human Rocket Flight

Charlie གྱིསDE

སྔོན་རབས

༣༦
Making Song Dynasty Fireworks — Bamboo Firecrackers and Ground Salutes
ཉེན་ཁ་ཅན།

Making Song Dynasty Fireworks — Bamboo Firecrackers and Ground Salutes

Charlie གྱིསDE

སྔོན་རབས

༢༦
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

༣༥
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

Metal

༣༠
ཀ་རའི་ནེའ་ལས་ལི་གཏོང་སྒོ་བརྟན་པ། སྦུག་ལུ། འབར་བ། དང་རི་མདོག་གི་ཐུན་མོང་

ཀ་རའི་ནེའ་ལས་ལི་གཏོང་སྒོ་བརྟན་པ། སྦུག་ལུ། འབར་བ། དང་རི་མདོག་གི་ཐུན་མོང་

Charlie གྱིསDE

རྫས་རིག

༥༧
Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting

Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting

Forge གྱིསNO

ལྕགས་བཟོ

༢༢
Making Bakelite — The First Fully Synthetic Plastic That Launched the Age of Polymers
ཉེན་ཁ་ཅན།

Making Bakelite — The First Fully Synthetic Plastic That Launched the Age of Polymers

Charlie གྱིསDE

Plastic

༣༡
Synthesising Aspirin — The Reaction That Founded Modern Pharmaceuticals

Synthesising Aspirin — The Reaction That Founded Modern Pharmaceuticals

Charlie གྱིསDE

རྫས་རིག

༢༣
Making Celluloid — The First Synthetic Plastic That Changed Everything
ཉེན་ཁ་ཅན།

Making Celluloid — The First Synthetic Plastic That Changed Everything

Charlie གྱིསDE

Plastic

༤༨
Making Nitrocellulose (Guncotton) — The Nitration That Launched Smokeless Powder and Plastics
ཉེན་ཁ་ཅན།

Making Nitrocellulose (Guncotton) — The Nitration That Launched Smokeless Powder and Plastics

Charlie གྱིསDE

Plastic

༦༣
Vulcanizing Rubber with Sulfur — The Accidental Discovery That Put Tyres on the Road

Vulcanizing Rubber with Sulfur — The Accidental Discovery That Put Tyres on the Road

Charlie གྱིསDE

རྫས་རིག

༣༨