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

བིལུ་པིརིན་ཊི རིག་རྩལའཕྲུལ་རིག

འཕྲུལ་རིག

བིལུ་པིརིན་ཊི ༡༩༦ ཡོད • ཡན་ལག་དབྱེ་རིམ ༨

ཡན་ལག་དབྱེ་རིམ་ལྟ་བཤེར

འཕྲུལ་སྐར

མོ་ཊ

གྲུ

མཁའ་འགྲུལ་སྣོད

འཁོར་ཁང

ལག་ཆས

འཕྲུལ་འཁོར

བཟོ་སྐྲུན

བིལུ་པིརིན་ཊི (༡༩༦)

Building a Roman Cofferdam — Pumping Water to Build Below the Waterline

Building a Roman Cofferdam — Pumping Water to Build Below the Waterline

Emma གྱིས

རོ་མ

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 གྱིས

རོ་མ

Building a Roman Sewer (Cloaca) — Underground Drainage That Made Cities Liveable

Building a Roman Sewer (Cloaca) — Underground Drainage That Made Cities Liveable

Emma གྱིས

རོ་མ

Building a Roman Undershot Water Mill — Grain Milling by Hydraulic Power

Building a Roman Undershot Water Mill — Grain Milling by Hydraulic Power

Emma གྱིས

རོ་མ

Building a Roman Road (Via Strata) — The Layered Highway That Connected an Empire

Building a Roman Road (Via Strata) — The Layered Highway That Connected an Empire

Emma གྱིས

བཟོ་སྐྲུན

Building a Wattle-and-Daub Wall — The Universal Prehistoric Construction Technique

Building a Wattle-and-Daub Wall — The Universal Prehistoric Construction Technique

Woody གྱིས

སྔོན་ལོ

Building a Box Bellows — The Breath That Makes Metal Obey Fire

Building a Box Bellows — The Breath That Makes Metal Obey Fire

Emma གྱིས

འཕྲུལ་རིག

Building a Rainwater Collection System — Gravity-Fed Rain Barrel

Building a Rainwater Collection System — Gravity-Fed Rain Barrel

Karen གྱིས

འཕྲུལ་རིག

Building a Roman Treadwheel Crane Model — Ancient Construction Machinery

Building a Roman Treadwheel Crane Model — Ancient Construction Machinery

Martin གྱིས

རོ་མ

Building a Hypocaust Underfloor Heating System — Roman Central Heating

Building a Hypocaust Underfloor Heating System — Roman Central Heating

Emma གྱིས

རོ་མ

Greek Water Pipe — Joining Terracotta Water Pipes

Greek Water Pipe — Joining Terracotta Water Pipes

Emma གྱིས

སྔོན་རབས་གིརིས

Egyptian Shaduf Model — Building a Scale Model Shaduf

Egyptian Shaduf Model — Building a Scale Model Shaduf

Martin གྱིས

ཨི་ཇིབ

Egyptian Shaduf Irrigation — Operating a Shaduf for Nile Irrigation

Egyptian Shaduf Irrigation — Operating a Shaduf for Nile Irrigation

Emma གྱིས

ཨི་ཇིབ

Building a Shaduf Irrigation Lever — Counterweighted Water Lift

Building a Shaduf Irrigation Lever — Counterweighted Water Lift

Emma གྱིས

སྔོན་རབས

Building a Slow Potter's Wheel — Tournette for Coil-Built Pottery

Building a Slow Potter's Wheel — Tournette for Coil-Built Pottery

Clay གྱིས

སྔོན་རབས

Building a Lever-and-Weight Olive Press — Mechanical Extraction

Building a Lever-and-Weight Olive Press — Mechanical Extraction

Emma གྱིས

སྔོན་རབས

སྔོན་མ ༡ ༢ ༣ ༤ ༥ ༦ ༧ ༨ ༩ ༡༠