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་ཊིSciencesདངོས་ཁམས་རིག

དངོས་ཁམས་རིག

བིལུ་པིརིན་ཊི ༧༦༤ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༥

བིལུ་པིརིན་ཊི (༧༦༤)

Equal-Arm Balance on a Knife Edge, with a Set of Brass Weights

Equal-Arm Balance on a Knife Edge, with a Set of Brass Weights

Penny གྱིསDK

འཕྲུལ་རིག

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Hand Lens 10×: a Small, Steep Lens Ground and Mounted

Hand Lens 10×: a Small, Steep Lens Ground and Mounted

Penny གྱིསDK

མདོངས་རིག

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Convex and Concave Lenses Ground as a Pair

Convex and Concave Lenses Ground as a Pair

Penny གྱིསDK

མདོངས་རིག

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Bonded Wire Strain Gauge on Paper: Simmons, 1942

Bonded Wire Strain Gauge on Paper: Simmons, 1942

Penny གྱིསDK

དངོས་ཁམས་རིག

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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

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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

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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

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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

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Trigger Spray Bottle: Tyler, 1962

Trigger Spray Bottle: Tyler, 1962

Emma གྱིསSE

འཕྲུལ་རིག

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

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

Penny གྱིསDK

དངོས་ཁམས་རིག

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Stopwatch: Lugrin, 1876

Stopwatch: Lugrin, 1876

Penny གྱིསDK

འཕྲུལ་རིག

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Bourdon-Tube Pressure Gauge

Bourdon-Tube Pressure Gauge

Emma གྱིསSE

འཕྲུལ་རིག

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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

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Magnifying Glass from a Hand-Ground Lens

Magnifying Glass from a Hand-Ground Lens

Penny གྱིསDK

དངོས་ཁམས་རིག

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Spring Scale Calibrated with Known Weights

Spring Scale Calibrated with Known Weights

Penny གྱིསDK

དངོས་ཁམས་རིག

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Iron Filings for Magnetic Field Experiments

Iron Filings for Magnetic Field Experiments

Penny གྱིསDK

དངོས་ཁམས་རིག

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Stationary-Wheel Dasher Churn: A Revolving Wheel Drives the Cream Through a Fixed Perforated One

Stationary-Wheel Dasher Churn: A Revolving Wheel Drives the Cream Through a Fixed Perforated One

Karen གྱིསSE

ཟས་དང་བཏུང་རྫས

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Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again

Two-Compartment Gate Churn: Paddles Drive the Cream Through a Slotted Gate Into an Open Side and Round Again

Buttercup གྱིསIE

ཟས་དང་བཏུང་རྫས

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Water-Dasher Adjustable-Rib Churn: A Hollow Dasher Holds Tempering Water, Ribs Weave the Surface

Water-Dasher Adjustable-Rib Churn: A Hollow Dasher Holds Tempering Water, Ribs Weave the Surface

Buttercup གྱིསIE

ཟས་དང་བཏུང་རྫས

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Swing-Valve Gambrel Box Churn: A Pendulum Frame of Swinging Beaters in a Tapering Box

Swing-Valve Gambrel Box Churn: A Pendulum Frame of Swinging Beaters in a Tapering Box

Tinny གྱིསUS

ཟས་དང་བཏུང་རྫས

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Two-Current Separator Rocking Churn: An Oval Cistern Split Round a Separator, the Currents Collide at Each Tip

Two-Current Separator Rocking Churn: An Oval Cistern Split Round a Separator, the Currents Collide at Each Tip

YourGrandma གྱིསIS

ཟས་དང་བཏུང་རྫས

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Tempered-Air Bellows Churn: Bellows Blow Air Past a Can of Water and Up Through the Cream

Tempered-Air Bellows Churn: Bellows Blow Air Past a Can of Water and Up Through the Cream

Buttercup གྱིསIE

ཟས་དང་བཏུང་རྫས

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Valved Air-Tube Dasher Churn: A Double-Acting Valve Lets Air Out of a Tube That Swings With the Dashers

Valved Air-Tube Dasher Churn: A Double-Acting Valve Lets Air Out of a Tube That Swings With the Dashers

Buttercup གྱིསIE

ཟས་དང་བཏུང་རྫས

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Channel-Ring Dasher Churn: A Hollow Column of Cream Traps Air at Every Stroke

Channel-Ring Dasher Churn: A Hollow Column of Cream Traps Air at Every Stroke

Buttercup གྱིསIE

ཟས་དང་བཏུང་རྫས

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764 ནང་ལས་ 24 སྟོན་དོ།