សិល្បៈ
សម្រស់ និង សុខុមាលភាព
សិប្បកម្ម
វប្បធម៌ និង ប្រវត្តិសាស្ត្រ
ការកម្សាន្ត
បរិស្ថាន
ម្ហូប និង ភេសជ្ជៈ
វិស្វកម្មបញ្ច្រាស
វិទ្យាសាស្ត្រ
កីឡា
បច្ចេកវិទ្យា
ប្រដាប់ដែលស្លៀក

Mathematics

64 ប្លង់មាន

ប្លង់ (64)

Cloverleaf Interchange

Cloverleaf Interchange

ដោយ MarkFI

Mathematics

48
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Hollerith Tabulator

Hollerith Tabulator

ដោយ MarkFI

គណនា

41
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0
0
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0
Burroughs Calculating Machine

Burroughs Calculating Machine

ដោយ MarkFI

វិទ្យាសាស្ត្រ

40
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0
0
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Cash Register

Cash Register

ដោយ MarkFI

វិទ្យាសាស្ត្រ

53
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Slide Rule

Slide Rule

ដោយ EmmaSE

វិទ្យាសាស្ត្រ

45
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Perspective Frame

Perspective Frame

ដោយ MarkFI

វិទ្យាសាស្ត្រ

38
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Self-Working Card Trick

Self-Working Card Trick

ដោយ MarkFI

ល្បែងកាត

55
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0
Volvelle Wheel Chart

Volvelle Wheel Chart

ដោយ MarkFI

ចេញមក

101
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Monochord

Monochord

ដោយ PennyDK

សូរស័ព្ទ

49
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Zero and Place-Value — Build an Abacus and Count Like the World Does

Zero and Place-Value — Build an Abacus and Count Like the World Does

ដោយ MarkFI

មជ្ឈិមសតវត្ស

49
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Projectile Motion — Launch a Ball and Measure Its Flight

Projectile Motion — Launch a Ball and Measure Its Flight

ដោយ PennyDK

Scientific Revolution (1600–1760)

35
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Hooke's Law — Stretch a Spring and Find Its Stiffness

Hooke's Law — Stretch a Spring and Find Its Stiffness

ដោយ PennyDK

School Projects 11-15

39
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The Pendulum — Time a Swing and Weigh Gravity

The Pendulum — Time a Swing and Weigh Gravity

ដោយ MartinNO

Scientific Revolution (1600–1760)

34
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The Sand Reckoner — Count the Grains and Tame Huge Numbers

The Sand Reckoner — Count the Grains and Tame Huge Numbers

ដោយ MarkFI

បុរាណ

47
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Air Has Weight — The Upside-Down Glass and Torricelli's Barometer

Air Has Weight — The Upside-Down Glass and Torricelli's Barometer

ដោយ PennyDK

Scientific Revolution (1600–1760)

44
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Magic Squares — Arrange Numbers So Every Line Adds the Same

Magic Squares — Arrange Numbers So Every Line Adds the Same

ដោយ MarkFI

បុរាណ

26
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The Mercator Map — Peel an Orange and See Why Flat Maps Lie

The Mercator Map — Peel an Orange and See Why Flat Maps Lie

ដោយ MarkFI

Renaissance (1400–1600)

37
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Snell's Law — Measure How Light Bends (Laser and Protractor)

Snell's Law — Measure How Light Bends (Laser and Protractor)

ដោយ PennyDK

Scientific Revolution (1600–1760)

42
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Trigonometry — Build a Clinometer and Measure a Tree's Height

Trigonometry — Build a Clinometer and Measure a Tree's Height

ដោយ MarkFI

បុរាណ

41
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Galileo's Falling Bodies — Race a Ball Down a Ramp

Galileo's Falling Bodies — Race a Ball Down a Ramp

ដោយ PennyDK

Scientific Revolution (1600–1760)

33
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The Number e — Grow Money and Meet the Constant of Change

The Number e — Grow Money and Meet the Constant of Change

ដោយ MarkFI

Scientific Revolution (1600–1760)

29
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The Birth of Probability — Roll the Dice and Find the Odds

The Birth of Probability — Roll the Dice and Find the Odds

ដោយ MarkFI

Scientific Revolution (1600–1760)

37
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Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers

Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers

ដោយ MarkFI

Scientific Revolution (1600–1760)

22
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Napier's Logarithms — Build a Paper Slide Rule and Multiply by Sliding

Napier's Logarithms — Build a Paper Slide Rule and Multiply by Sliding

ដោយ MarkFI

Scientific Revolution (1600–1760)

33
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1
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បង្ហាញ 24 ក្នុងចំណោម 64