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طبیعیات

43 بلوپرنٹس دستیاب • 15 ذیلی زمرے

بلوپرنٹس (43)

Building a Compound Pulley (Block and Tackle) — Archimedes' Force Multiplier

Building a Compound Pulley (Block and Tackle) — Archimedes' Force Multiplier

Penny کی طرف سےDK

قدیم

31
0
0
0
0
0
Building a Roman Ballista — The Torsion-Powered Bolt Thrower

Building a Roman Ballista — The Torsion-Powered Bolt Thrower

Emma کی طرف سےSE

رومی

48
0
0
0
0
0
Designing a Roman Bathhouse (Thermae) — The Engineering of Public Bathing

Designing a Roman Bathhouse (Thermae) — The Engineering of Public Bathing

Emma کی طرف سےSE

طبیعیات

27
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0
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Building a Roman Stone Arch Bridge — Spanning Rivers with Voussoirs and Cofferdams

Building a Roman Stone Arch Bridge — Spanning Rivers with Voussoirs and Cofferdams

Emma کی طرف سےSE

طبیعیات

25
0
0
0
1
0
Carving a Lodestone Compass Spoon — China's Magnetic Direction Finder

Carving a Lodestone Compass Spoon — China's Magnetic Direction Finder

Penny کی طرف سےDK

دستکاری

11
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0
0
0
0
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
Hazardous content

Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass

Charlie کی طرف سےDE

Metal

20
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0
0
0
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Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours

Penny کی طرف سےDK

خلا

18
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0
0
0
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Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
Hazardous content

Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy

Astro کی طرف سےIS

طبیعیات

28
0
0
0
0
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Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience

Penny کی طرف سےDK

فلکیات

33
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0
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فوکو پینڈولم بنائیں — زمین کی گردش کو ثابت کریں

فوکو پینڈولم بنائیں — زمین کی گردش کو ثابت کریں

Astro کی طرف سےIS

بصریات

46
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Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Astro کی طرف سےIS

دھات کاری

20
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0
0
0
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Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

Astro کی طرف سےIS

بصریات

28
0
0
0
0
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Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Astro کی طرف سےIS

خلا

18
0
0
0
0
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Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Astro کی طرف سےIS

فلکیات

19
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0
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Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Astro کی طرف سےIS

بصریات

29
1
0
0
1
0
Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science

Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science

Peter کی طرف سےSE

دوری جدول

25
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0
0
4
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Understanding Promethium from Nuclear Fission — The Phantom Lanthanide

Understanding Promethium from Nuclear Fission — The Phantom Lanthanide

Peter کی طرف سےSE

Industry 3.0 — Assembly Line & Mass Production (1913)

26
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1
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Understanding Technetium from Nuclear Fission — The First Artificially Made Element

Understanding Technetium from Nuclear Fission — The First Artificially Made Element

Peter کی طرف سےSE

دوری جدول

16
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1
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Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium

Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium

Peter کی طرف سےSE

کیمیا

21
0
0
0
1
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Understanding Hafnium from Zircon — The Nuclear Fuel Rod Guardian

Understanding Hafnium from Zircon — The Nuclear Fuel Rod Guardian

Peter کی طرف سےSE

Industry 2.0 — Electricity, Steel & Oil (1870)

29
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1
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