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វិទ្យាសាស្ត្រ

1,546 ប្លង់មាន • 11 ប្រភេទរង

ប្លង់ (1,546)

Filtering: Gravity, Vacuum, and Why the Filtrate Came Through Cloudy

Filtering: Gravity, Vacuum, and Why the Filtrate Came Through Cloudy

ដោយ CharlieDE

រសាយនវិទ្យា

29
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Dilution: One Equation, and Knowing When to Do It in Steps

Dilution: One Equation, and Knowing When to Do It in Steps

ដោយ CharlieDE

រសាយនវិទ្យា

23
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Making Up a Solution: Which Glassware Actually Measures, and Which Only Looks Like It

Making Up a Solution: Which Glassware Actually Measures, and Which Only Looks Like It

ដោយ CharlieDE

រសាយនវិទ្យា

30
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Acid Into Water, Never Water Into Acid: Why the Order Is Not a Preference

Acid Into Water, Never Water Into Acid: Why the Order Is Not a Preference

ដោយ CharlieDE

រសាយនវិទ្យា

22
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The Notebook: Write a Page Somebody Else Can Repeat

The Notebook: Write a Page Somebody Else Can Repeat

ដោយ PennyDK

រូបវិទ្យា

23
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Timing by Hand: Your Reaction Time Is the Biggest Error in the Experiment

Timing by Hand: Your Reaction Time Is the Biggest Error in the Experiment

ដោយ PennyDK

រូបវិទ្យា

24
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Plot It Before You Conclude: What a Table of Numbers Hides

Plot It Before You Conclude: What a Table of Numbers Hides

ដោយ PennyDK

រូបវិទ្យា

25
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Significant Figures: How Much of Your Number Is Actually Real

Significant Figures: How Much of Your Number Is Actually Real

ដោយ PennyDK

រូបវិទ្យា

30
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Random or Systematic: Two Ways to Be Wrong, and Only One of Them Averages Away

Random or Systematic: Two Ways to Be Wrong, and Only One of Them Averages Away

ដោយ PennyDK

រូបវិទ្យា

27
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Change One Thing at a Time: Grow the Control, and the Confounded Jar Too

Change One Thing at a Time: Grow the Control, and the Confounded Jar Too

ដោយ PennyDK

រូបវិទ្យា

22
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Zero, Tare and the Blank: Measure What Your Instrument Reads When It Should Read Nothing

Zero, Tare and the Blank: Measure What Your Instrument Reads When It Should Read Nothing

ដោយ PennyDK

រូបវិទ្យា

21
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One Reading Is Not a Measurement: Repeat It, and Look at the Spread

One Reading Is Not a Measurement: Repeat It, and Look at the Spread

ដោយ PennyDK

រូបវិទ្យា

30
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Drawing Out: Making It Longer by Making It Thinner

Drawing Out: Making It Longer by Making It Thinner

ដោយ ForgeNO

ការធ្វើការលោហៈ

22
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What Heat Costs: Scale, Grain Growth and Burnt Steel

What Heat Costs: Scale, Grain Growth and Burnt Steel

ដោយ ForgeNO

ការធ្វើការលោហៈ

23
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The Surface Is Not the Centre: Thermal Mass and Soak Time

The Surface Is Not the Centre: Thermal Mass and Soak Time

ដោយ PennyDK

រូបវិទ្យា

24
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Measuring High Temperature: Thermocouples, Pyrometers, and What Each Lies About

Measuring High Temperature: Thermocouples, Pyrometers, and What Each Lies About

ដោយ PennyDK

រូបវិទ្យា

29
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Cooling Is a Process Too: Still Air, Insulated, or Quenched

Cooling Is a Process Too: Still Air, Insulated, or Quenched

ដោយ PennyDK

រូបវិទ្យា

28
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Why Finish Wood At All: Three Jobs, and They Pull Against Each Other

Why Finish Wood At All: Three Jobs, and They Pull Against Each Other

ដោយ WoodyNO

ការធ្វើការឈើ

33
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Varnish and Polyurethane: Thin Coats, and Leave It Alone

Varnish and Polyurethane: Thin Coats, and Leave It Alone

ដោយ WoodyNO

ការធ្វើការឈើ

29
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Stain: Colour Goes In Unevenly Unless You Make It Behave

Stain: Colour Goes In Unevenly Unless You Make It Behave

ដោយ MaryFI

សម្ភារៈ

26
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Oil Finishes: Wipe On, Wipe Off, and the Rag That Can Catch Fire

Oil Finishes: Wipe On, Wipe Off, and the Rag That Can Catch Fire

ដោយ MaryFI

សម្ភារៈ

20
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What a Glue Joint Is: Why a Good One Breaks Everywhere Except the Glue

What a Glue Joint Is: Why a Good One Breaks Everywhere Except the Glue

ដោយ WoodyNO

ការធ្វើការឈើ

35
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Surface Preparation: The Part That Decides Whether It Holds

Surface Preparation: The Part That Decides Whether It Holds

ដោយ WoodyNO

ការធ្វើការឈើ

26
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Squeeze-Out, Starvation and Reading a Joint That Failed

Squeeze-Out, Starvation and Reading a Joint That Failed

ដោយ MaryFI

សម្ភារៈ

36
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បង្ហាញ 24 ក្នុងចំណោម 1546