အနုပညာ
အလှအပနှင့် ကျန်းမာရေး
လက်မှုအနုပညာ
ယဉ်ကျေးမှုနှင့် သမိုင်း
ဖျော်ဖြေရေး
ပတ်ဝန်းကျင်
အစားအစာနှင့် အချိုရည်
ပြောင်းပြန်အင်ဂျင်နီယာပညာ
သိပ္ပံပညာများ
အားကစား
နည်းပညာ
ဝတ်ဆင်နိုင်သောပစ္စည်းများ

စက်မှုလုပ်ငန်း

ဘလူးပရင့် ၁၂၈ ခု ရရှိနိုင်သည်

ဘလူးပရင့်များ (၁၂၈)

Nitric Acid: Chile Saltpetre Distilled with Oil of Vitriol in an Iron Retort
အန္တရာယ်ရှိ

Nitric Acid: Chile Saltpetre Distilled with Oil of Vitriol in an Iron Retort

Charlie မှDE

ဓာတုဗေဒ

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Oxalic Acid: Wood Soaked in Caustic Alkali and Heated in Hot Air at 300 °C (Plater-Syberg)
အန္တရာယ်ရှိ

Oxalic Acid: Wood Soaked in Caustic Alkali and Heated in Hot Air at 300 °C (Plater-Syberg)

Charlie မှDE

ဓာတုဗေဒ

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Oxalic Acid: Sawdust Heated with Alkali Lye in Vacuum, Oxidised, Precipitated as Calcium Oxalate (Zacher)
အန္တရာယ်ရှိ

Oxalic Acid: Sawdust Heated with Alkali Lye in Vacuum, Oxidised, Precipitated as Calcium Oxalate (Zacher)

Charlie မှDE

ဓာတုဗေဒ

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Diethyl Ether: Soubeiran's One-Operation Still with a Caustic Charcoal Purifier
အန္တရာယ်ရှိ

Diethyl Ether: Soubeiran's One-Operation Still with a Caustic Charcoal Purifier

Charlie မှDE

ဓာတုဗေဒ

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Urea: Extracted from Urine with Alcohol, Precipitated as the Nitrate, Freed with Barium Carbonate
အန္တရာယ်ရှိ

Urea: Extracted from Urine with Alcohol, Precipitated as the Nitrate, Freed with Barium Carbonate

Charlie မှDE

ဓာတုဗေဒ

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Urea: Separated from Urine as the Oxalate, Freed with Chalk and Crystallised

Urea: Separated from Urine as the Oxalate, Freed with Chalk and Crystallised

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Copper-Zinc Ferrite Milled 200 Hours, Fired at 1050 °C (Snoek)

Ferrite Toroid Core: Copper-Zinc Ferrite Milled 200 Hours, Fired at 1050 °C (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Magnesium-Zinc Ferrite (28 : 18 : 54) Fired at 1400 °C (Snoek)

Ferrite Toroid Core: Magnesium-Zinc Ferrite (28 : 18 : 54) Fired at 1400 °C (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Nickel-Zinc Ferrite Fired at 1400 °C, Held at 930 °C (Snoek)
အန္တရာယ်ရှိ

Ferrite Toroid Core: Nickel-Zinc Ferrite Fired at 1400 °C, Held at 930 °C (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Copper-Zinc Ferrite Fired at 1050 °C, Held at 600 °C in Oxygen (Snoek)

Ferrite Toroid Core: Copper-Zinc Ferrite Fired at 1050 °C, Held at 600 °C in Oxygen (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1300 °C in Oxygen (Snoek)

Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1300 °C in Oxygen (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1400 °C in Oxygen (Snoek)

Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1400 °C in Oxygen (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Laminated Phenolic Paper Sheet: Bakelite-Coated Kraft Paper Hot-Pressed and Baked (O'Conor, Westinghouse 1918)
အန္တရာယ်ရှိ

Laminated Phenolic Paper Sheet: Bakelite-Coated Kraft Paper Hot-Pressed and Baked (O'Conor, Westinghouse 1918)

Charlie မှDE

ဓာတုဗေဒ

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Liquid Bakelite: Phenol and Formalin Heated Together, the Oily Layer Kept (Baekeland 1909)
အန္တရာယ်ရှိ

Liquid Bakelite: Phenol and Formalin Heated Together, the Oily Layer Kept (Baekeland 1909)

Charlie မှDE

ဓာတုဗေဒ

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Ferrite Toroid Core: Nickel-Zinc Ferrite Sintered at 1300 °C in Oxygen (Snoek)
အန္တရာယ်ရှိ

Ferrite Toroid Core: Nickel-Zinc Ferrite Sintered at 1300 °C in Oxygen (Snoek)

Charlie မှDE

ဓာတုဗေဒ

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Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Acetic acid

Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Acetic acid

Charlie မှDE

ဓာတုဗေဒ

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Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Acetone

Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Acetone

Charlie မှDE

ဓာတုဗေဒ

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Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Isopropanol

Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Isopropanol

Charlie မှDE

ဓာတုဗေဒ

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Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Methanol

Acrylic Mirror Sheet: Silver Sprayed on Acrylic Treated with Tannin in Water and Methanol

Charlie မှDE

ဓာတုဗေဒ

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Diethyl Ether: Alcohol Dropped into Sulphuric Acid at 130–140 °C (Boullay's Continuous Method)
အန္တရာယ်ရှိ

Diethyl Ether: Alcohol Dropped into Sulphuric Acid at 130–140 °C (Boullay's Continuous Method)

Charlie မှDE

ဓာတုဗေဒ

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Tannic Acid: Galls Stirred to a Cream with Ether and Pressed (Leconnet)

Tannic Acid: Galls Stirred to a Cream with Ether and Pressed (Leconnet)

Charlie မှDE

ဓာတုဗေဒ

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Tannic Acid: Powdered Galls Extracted with Ether and Alcohol (75:25)

Tannic Acid: Powdered Galls Extracted with Ether and Alcohol (75:25)

Charlie မှDE

ဓာတုဗေဒ

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Tannic Acid: Chinese Galls Extracted with Warm Water, Shaken with Ether and Dried on Tin Sheets

Tannic Acid: Chinese Galls Extracted with Warm Water, Shaken with Ether and Dried on Tin Sheets

Charlie မှDE

ဓာတုဗေဒ

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Acrylic Mirror Sheet: Silver Sprayed on Tannin-Treated Acrylic

Acrylic Mirror Sheet: Silver Sprayed on Tannin-Treated Acrylic

Charlie မှDE

ဓာတုဗေဒ

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128 ထဲမှ 24 ကို ပြသနေသည်