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)

Sodium Bicarbonate from Soda Ash and Carbon Dioxide

Sodium Bicarbonate from Soda Ash and Carbon Dioxide

Charlie གྱིསDE

རྫས་རིག

༣༤
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Gelatin from Bones and Skins

Gelatin from Bones and Skins

TheChef གྱིསDK

ཟས

༢༨
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Refined White Sugar from Raw Cane Sugar

Refined White Sugar from Raw Cane Sugar

TheChef གྱིསDK

ཟས

༢༦
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Permanent Marker: Ink, Moulded Barrel, Reservoir and Nib

Permanent Marker: Ink, Moulded Barrel, Reservoir and Nib

Emma གྱིསSE

དུ་རྫས

༡༩
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Isopropyl Alcohol from Propene and Water

Isopropyl Alcohol from Propene and Water

Charlie གྱིསDE

རྫས་རིག

༣༤
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Potash Alum from Alum Shale

Potash Alum from Alum Shale

Charlie གྱིསDE

རྫས་རིག

༢༣
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Nitrile Gloves by Dip Moulding

Nitrile Gloves by Dip Moulding

Emma གྱིསSE

དུ་རྫས

༢༣
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N95 Respirator: Melt-Blown, Charged and Welded

N95 Respirator: Melt-Blown, Charged and Welded

Emma གྱིསSE

དུ་རྫས

༡༣
༠
༠
༠
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Safety Spectacles: Moulded Polycarbonate with a Hard Coat

Safety Spectacles: Moulded Polycarbonate with a Hard Coat

Emma གྱིསSE

དུ་རྫས

༣༣
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Magnifying Glass from a Hand-Ground Lens

Magnifying Glass from a Hand-Ground Lens

Penny གྱིསDK

དངོས་ཁམས་རིག

༣༥
༠
༠
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PVA Wood Glue by Emulsion Polymerisation

PVA Wood Glue by Emulsion Polymerisation

Charlie གྱིསDE

རྫས་རིག

༣༠
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Spring Scale Calibrated with Known Weights

Spring Scale Calibrated with Known Weights

Penny གྱིསDK

དངོས་ཁམས་རིག

༣༣
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Cleaning and Degreasing Animal Bones

Cleaning and Degreasing Animal Bones

Bob གྱིསBE

སྲོག་རིག

༣༠
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Printed Protractor on Pasteboard

Printed Protractor on Pasteboard

Mark གྱིསFI

Mathematics

༣༩
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Shellac Flakes from Stick Lac

Shellac Flakes from Stick Lac

Mary གྱིསFI

རྫས་རིག

༢༨
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Iron Filings for Magnetic Field Experiments

Iron Filings for Magnetic Field Experiments

Penny གྱིསDK

དངོས་ཁམས་རིག

༢༨
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Plaster of Paris from Gypsum

Plaster of Paris from Gypsum

Charlie གྱིསDE

རྫས་རིག

༣༦
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Beeswax Pastilles (Pellets)

Beeswax Pastilles (Pellets)

YourGrandma གྱིསIS

རྫས་རིག

༢༩
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Graph Paper Printed True to Size

Graph Paper Printed True to Size

Mark གྱིསFI

Mathematics

༣༨
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Cold-Pressed Linseed Oil

Cold-Pressed Linseed Oil

Mary གྱིསFI

རྫས་རིག

༤༡
༠
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Distilled Water on the Stovetop

Distilled Water on the Stovetop

Charlie གྱིསDE

རྫས་རིག

༤༠
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Hardwood Ash

Hardwood Ash

YourGrandma གྱིསIS

རྫས་རིག

༢༩
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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

༡༠
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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

༣༡
༠
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1689 ནང་ལས་ 24 སྟོན་དོ།