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ប្លង់Sciencesរូបវិទ្យា

រូបវិទ្យា

747 ប្លង់មាន • 15 ប្រភេទរង

ប្លង់ (747)

The Centrifugal Pump: Speed Squared, and Why It Cannot Lift Air

The Centrifugal Pump: Speed Squared, and Why It Cannot Lift Air

ដោយ EmmaSE

មេកានិក

18
0
0
0
0
0
Reciprocity Failure: A One Minute Exposure Is Not One Minute

Reciprocity Failure: A One Minute Exposure Is Not One Minute

ដោយ PixelFI

រូបថត

32
0
0
0
0
0
Depth of Field: Only One Distance Is Actually in Focus

Depth of Field: Only One Distance Is Actually in Focus

ដោយ PixelFI

រូបថត

24
0
0
0
0
0
The Exposure Triangle: A Stop Is a Factor of Two

The Exposure Triangle: A Stop Is a Factor of Two

ដោយ PixelFI

រូបថត

20
0
0
0
0
0
Temperament: Twelve Fifths Do Not Fit in Seven Octaves

Temperament: Twelve Fifths Do Not Fit in Seven Octaves

ដោយ WoodyNO

ការធ្វើការឈើ

28
0
0
0
0
0
Reeds That Speak: Beating, Double and Free

Reeds That Speak: Beating, Double and Free

ដោយ WoodyNO

ការធ្វើការឈើ

23
0
0
0
0
0
Heads and Tension: Why a Drum Has a Pitch You Can Argue About

Heads and Tension: Why a Drum Has a Pitch You Can Argue About

ដោយ WoodyNO

ការធ្វើការឈើ

27
0
0
0
0
0
Bore and Tone Holes: A Hole Can Be Made Bigger and Not Smaller

Bore and Tone Holes: A Hole Can Be Made Bigger and Not Smaller

ដោយ WoodyNO

ការធ្វើការឈើ

29
0
0
0
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The Soundboard: A String Alone Is Almost Silent

The Soundboard: A String Alone Is Almost Silent

ដោយ WoodyNO

ការធ្វើការឈើ

26
0
0
0
0
0
Placing the Frets: The Rule of 18 Is Wrong, and by How Much

Placing the Frets: The Rule of 18 Is Wrong, and by How Much

ដោយ WoodyNO

ការធ្វើការឈើ

28
0
0
0
0
0
What Sets the Pitch: Length, Tension, Mass, and Nothing Else

What Sets the Pitch: Length, Tension, Mass, and Nothing Else

ដោយ WoodyNO

ការធ្វើការឈើ

24
0
0
0
0
0
Listening to a Machine: Noise, Heat and Play Are All Telling You Something

Listening to a Machine: Noise, Heat and Play Are All Telling You Something

ដោយ MartinNO

វិស្វកម្ម

28
0
0
0
0
0
Keeping It Together: Shoulders, Keys, Circlips and What Each One Resists

Keeping It Together: Shoulders, Keys, Circlips and What Each One Resists

ដោយ MartinNO

វិស្វកម្ម

23
0
0
0
0
0
Balance: A Tiny Eccentricity Becomes an Enormous Force

Balance: A Tiny Eccentricity Becomes an Enormous Force

ដោយ MartinNO

វិស្វកម្ម

20
0
0
0
0
0
Belts and Chains: Tension, Wrap, and Why Too Tight Kills the Bearings

Belts and Chains: Tension, Wrap, and Why Too Tight Kills the Bearings

ដោយ MartinNO

វិស្វកម្ម

19
0
0
0
0
0
Alignment: Two Shafts That Look In Line Are Not In Line

Alignment: Two Shafts That Look In Line Are Not In Line

ដោយ MartinNO

វិស្វកម្ម

30
0
0
0
0
0
Lubrication: The Film Does the Work, and More Grease Is Not More Lubrication

Lubrication: The Film Does the Work, and More Grease Is Not More Lubrication

ដោយ MartinNO

វិស្វកម្ម

18
0
0
0
0
0
Mounting a Bearing: Press on the Ring That Is Being Fitted, Never Through the Balls

Mounting a Bearing: Press on the Ring That Is Being Fitted, Never Through the Balls

ដោយ MartinNO

វិស្វកម្ម

33
0
0
0
0
0
Fits: Clearance, Transition and Interference — the Difference Is Microns

Fits: Clearance, Transition and Interference — the Difference Is Microns

ដោយ MartinNO

វិស្វកម្ម

28
0
0
0
0
0
The Notebook: Write a Page Somebody Else Can Repeat

The Notebook: Write a Page Somebody Else Can Repeat

ដោយ PennyDK

រូបវិទ្យា

19
0
0
0
0
0
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

23
0
0
0
0
0
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

21
0
0
0
0
0
Significant Figures: How Much of Your Number Is Actually Real

Significant Figures: How Much of Your Number Is Actually Real

ដោយ PennyDK

រូបវិទ្យា

23
0
0
0
0
0
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

23
0
0
0
0
0
បង្ហាញ 24 ក្នុងចំណោម 747