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་ཊིརིག་གནས་དང་ལོ་རྒྱུས

རིག་གནས་དང་ལོ་རྒྱུས

བིལུ་པིརིན་ཊི ༡,༤༥༥ ཡོད • ཡན་ལག་དབྱེ་རིམ ༣

ཡན་ལག་དབྱེ་རིམ་ལྟ་བཤེར

དུས་རབས

དུས་རབས

གུང་གསེང་དང་དགའ་སྟོན

བིལུ་པིརིན་ཊི (༡,༤༥༥)

Building Leonardo da Vinci's Self-Propelled Cart — The First Programmable Robot

Building Leonardo da Vinci's Self-Propelled Cart — The First Programmable Robot

Emma གྱིས

Renaissance (1400–1600)

Building Leonardo da Vinci's Aerial Screw — The Ancestor of the Helicopter

Building Leonardo da Vinci's Aerial Screw — The Ancestor of the Helicopter

Emma གྱིས

Renaissance (1400–1600)

Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method

Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method

Astro གྱིས

བར་དུས

Measuring Pi — Archimedes' Method of Squeezing a Circle Between Polygons

Measuring Pi — Archimedes' Method of Squeezing a Circle Between Polygons

Mark གྱིས

སྔོན་རབས

The Law of the Lever — Archimedes' Balance of Weight and Distance

The Law of the Lever — Archimedes' Balance of Weight and Distance

Martin གྱིས

སྔོན་རབས

Testing a Gold Crown with Water — Archimedes' Buoyancy and the Eureka Method

ཉེན་ཁ་ཅན།

Testing a Gold Crown with Water — Archimedes' Buoyancy and the Eureka Method

Penny གྱིས

སྔོན་རབས

Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method

Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method

Astro གྱིས

སྔོན་རབས

Measuring the Height of a Pyramid by Its Shadow — Thales' Similar Triangles

Measuring the Height of a Pyramid by Its Shadow — Thales' Similar Triangles

Mark གྱིས

སྔོན་རབས

Building Leonardo da Vinci's Parachute — The Sealed Linen Pyramid of 1485

Building Leonardo da Vinci's Parachute — The Sealed Linen Pyramid of 1485

Emma གྱིས

Renaissance (1400–1600)

Measuring the Circumference of the Earth — Eratosthenes' Shadow Method

Measuring the Circumference of the Earth — Eratosthenes' Shadow Method

Astro གྱིས

སྔོན་རབས

Tablet Weaving a Patterned Band — Card Weaving the Trim of the Viking World

Tablet Weaving a Patterned Band — Card Weaving the Trim of the Viking World

Tex གྱིས

བར་དུས

Nalbinding a Wool Sock in the Oslo Stitch — The Looped Fabric Before Knitting

Nalbinding a Wool Sock in the Oslo Stitch — The Looped Fabric Before Knitting

Tex གྱིས

བར་དུས

Binding a Besom Broom — The Birch-Twig Broom on a Hazel Handle

Binding a Besom Broom — The Birch-Twig Broom on a Hazel Handle

YourGrandma གྱིས

བར་དུས

Carving a Wooden Clog — The All-Wood Sabot from a Single Green Block

Carving a Wooden Clog — The All-Wood Sabot from a Single Green Block

Woody གྱིས

བར་དུས

Making a Horn Spoon — Shaping Cattle Horn with Heat and Pressure

Making a Horn Spoon — Shaping Cattle Horn with Heat and Pressure

Woody གྱིས

བར་དུས

Making a Coiled-Straw Bee Skep — The Traditional Beehive Before Wooden Boxes

Making a Coiled-Straw Bee Skep — The Traditional Beehive Before Wooden Boxes

Karen གྱིས

བར་དུས

Building a Hot Blast Stove — Preheating the Air That Tripled the Blast Furnace

Building a Hot Blast Stove — Preheating the Air That Tripled the Blast Furnace

Tarkin གྱིས

དེང་རབས

Pasteurising Milk and Wine — Gentle Heat That Kills the Germs Without Cooking

Pasteurising Milk and Wine — Gentle Heat That Kills the Germs Without Cooking

Galadriel གྱིས

དེང་རབས

Casting Reinforced Concrete — Marrying Steel and Stone into the Modern Structure

Casting Reinforced Concrete — Marrying Steel and Stone into the Modern Structure

Balin གྱིས

དེང་རབས

Building a Safety Bicycle — Chain Drive, Equal Wheels, and Personal Freedom

Building a Safety Bicycle — Chain Drive, Equal Wheels, and Personal Freedom

Palpatine གྱིས

དེང་རབས