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 ༡,༦༨༩ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༡

བིལུ་པིརིན་ཊི (༡,༦༨༩)

Water Gas: Steam Blown Through Red-Hot Charcoal
ཉེན་ཁ་ཅན།

Water Gas: Steam Blown Through Red-Hot Charcoal

Charlie གྱིསDE

སྲོག་མེད

༡༣
༠
༠
༠
༠
༠
Bone Ash by Calcining Bones

Bone Ash by Calcining Bones

Charlie གྱིསDE

སྲོག་མེད

༡༧
༠
༠
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༠
༠
Plastic Rosin Flux: Ripley, 1929

Plastic Rosin Flux: Ripley, 1929

Charlie གྱིསDE

རྫས་རིག

༡༥
༠
༠
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Strain-Gauge Load Cell with Floating Piston: Ruge, 1949

Strain-Gauge Load Cell with Floating Piston: Ruge, 1949

Penny གྱིསDK

དངོས་ཁམས་རིག

༡༨
༠
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Electronic Baby Scale That Holds a Steady Reading: Hino & Itani, 1981

Electronic Baby Scale That Holds a Steady Reading: Hino & Itani, 1981

Penny གྱིསDK

དངོས་ཁམས་རིག

༡༠
༠
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Hand-Held Cup Anemometer with Folding Cups: Simerl, 1978

Hand-Held Cup Anemometer with Folding Cups: Simerl, 1978

Penny གྱིསDK

དངོས་ཁམས་རིག

༢༠
༠
༠
༠
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Bimetal Roast Thermometer with Spacing Chamber: Ford, 1942

Bimetal Roast Thermometer with Spacing Chamber: Ford, 1942

Penny གྱིསDK

དངོས་ཁམས་རིག

༡༣
༠
༠
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༠
༠
Trigger Spray Bottle: Tyler, 1962

Trigger Spray Bottle: Tyler, 1962

Emma གྱིསSE

འཕྲུལ་རིག

༤
༠
༠
༠
༠
༠
Dial Spring Scale with Tare Screw: Fray & Pigg, 1881

Dial Spring Scale with Tare Screw: Fray & Pigg, 1881

Penny གྱིསDK

དངོས་ཁམས་རིག

༢༡
༠
༠
༠
༠
༠
Stopwatch: Lugrin, 1876

Stopwatch: Lugrin, 1876

Penny གྱིསDK

འཕྲུལ་རིག

༡༦
༠
༠
༠
༠
༠
Raw Cane Sugar at the Sugar Mill

Raw Cane Sugar at the Sugar Mill

TheChef གྱིསDK

ཟས

༡༩
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Refining Crude Glycerol to 99.5%

Refining Crude Glycerol to 99.5%

Charlie གྱིསDE

རྫས་རིག

༣
༠
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Graphite Electrodes from Petroleum Coke and Pitch

Graphite Electrodes from Petroleum Coke and Pitch

Charlie གྱིསDE

རྫས

༤
༠
༠
༠
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༠
Synthetic Graphite Powder from Petroleum Coke

Synthetic Graphite Powder from Petroleum Coke

Charlie གྱིསDE

རྫས

༨
༠
༠
༠
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༠
Copper(II) Oxide by Heating Copper in Air

Copper(II) Oxide by Heating Copper in Air

Charlie གྱིསDE

རྫས་རིག

༡༠
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Copper Sulfate from Copper Oxide and Dilute Sulfuric Acid

Copper Sulfate from Copper Oxide and Dilute Sulfuric Acid

Charlie གྱིསDE

རྫས་རིག

༡༠
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Ferrous Sulfate: Iron Displaces Copper

Ferrous Sulfate: Iron Displaces Copper

Charlie གྱིསDE

རྫས་རིག

༣༥
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Acetone by Dry Distillation of Acetate of Lime

Acetone by Dry Distillation of Acetate of Lime

Charlie གྱིསDE

རྫས་རིག

༡༥
༠
༠
༠
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Cream of Tartar from Wine Lees

Cream of Tartar from Wine Lees

TheChef གྱིསDK

ཟས

༣༢
༠
༠
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Distilled White Vinegar in a Packed Generator

Distilled White Vinegar in a Packed Generator

TheChef གྱིསDK

ཟས

༣༡
༠
༠
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Sodium Hydroxide by Causticizing Soda Ash with Slaked Lime

Sodium Hydroxide by Causticizing Soda Ash with Slaked Lime

Charlie གྱིསDE

རྫས་རིག

༢༡
༠
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Glass Stirring Rods: Cut and Flame-Polished

Glass Stirring Rods: Cut and Flame-Polished

Bubbles གྱིསIT

ཤེལ་བཟོ

༢༢
༠
༠
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Bourdon-Tube Pressure Gauge

Bourdon-Tube Pressure Gauge

Emma གྱིསSE

འཕྲུལ་རིག

༢༣
༠
༠
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Liquid-in-Glass Thermometer: Bulb, Fill, Seal and Scale
ཉེན་ཁ་ཅན།

Liquid-in-Glass Thermometer: Bulb, Fill, Seal and Scale

Penny གྱིསDK

ཤེལ་བཟོ

༡༩
༠
༠
༠
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1689 ནང་ལས་ 24 སྟོན་དོ།