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1.689 bản thiết kế có sẵn • 11 danh mục con

Bản thiết kế (1.689)

Saving Carrot Seeds — The Two-Year Biennial

Saving Carrot Seeds — The Two-Year Biennial

bởi BobBE

Khoa học cây trồng

49
0
0
0
0
0
Saving Bean and Pea Seeds — The Easiest First Seed to Save

Saving Bean and Pea Seeds — The Easiest First Seed to Save

bởi BobBE

Khoa học cây trồng

27
0
0
0
0
0
Overwintering Roots for Seed — Getting a Biennial Through Winter

Overwintering Roots for Seed — Getting a Biennial Through Winter

bởi BobBE

Khoa học cây trồng

41
0
0
0
0
0
Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night

Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night

bởi AstroIS

Thời Trung cổ

43
0
0
0
0
0
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

bởi MarkFI

Thời Trung cổ

49
0
0
0
0
0
Projectile Motion — Launch a Ball and Measure Its Flight

Projectile Motion — Launch a Ball and Measure Its Flight

bởi PennyDK

Scientific Revolution (1600–1760)

35
0
0
0
0
0
Hooke's Law — Stretch a Spring and Find Its Stiffness

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

bởi PennyDK

School Projects 11-15

39
0
0
0
0
0
The Pendulum — Time a Swing and Weigh Gravity

The Pendulum — Time a Swing and Weigh Gravity

bởi MartinNO

Scientific Revolution (1600–1760)

35
0
0
0
0
0
The Sand Reckoner — Count the Grains and Tame Huge Numbers

The Sand Reckoner — Count the Grains and Tame Huge Numbers

bởi MarkFI

Cổ đại

48
0
0
0
0
0
Air Has Weight — The Upside-Down Glass and Torricelli's Barometer

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

bởi PennyDK

Scientific Revolution (1600–1760)

44
0
0
0
0
0
Boyle's Law — Squeeze a Syringe of Air

Boyle's Law — Squeeze a Syringe of Air

bởi CharlieDE

Scientific Revolution (1600–1760)

50
0
0
0
2
0
Magic Squares — Arrange Numbers So Every Line Adds the Same

Magic Squares — Arrange Numbers So Every Line Adds the Same

bởi MarkFI

Cổ đại

30
0
0
0
0
0
The Mercator Map — Peel an Orange and See Why Flat Maps Lie

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

bởi MarkFI

Renaissance (1400–1600)

38
0
0
0
0
0
Snell's Law — Measure How Light Bends (Laser and Protractor)

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

bởi PennyDK

Scientific Revolution (1600–1760)

42
0
0
0
0
0
Trigonometry — Build a Clinometer and Measure a Tree's Height

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

bởi MarkFI

Cổ đại

43
0
0
0
0
0
Galileo's Falling Bodies — Race a Ball Down a Ramp

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

bởi PennyDK

Scientific Revolution (1600–1760)

33
0
0
0
0
0
Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String

bởi AstroIS

Scientific Revolution (1600–1760)

36
0
0
0
0
0
The Number e — Grow Money and Meet the Constant of Change

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

bởi MarkFI

Scientific Revolution (1600–1760)

29
0
0
0
0
0
The Birth of Probability — Roll the Dice and Find the Odds

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

bởi MarkFI

Scientific Revolution (1600–1760)

37
0
0
0
0
0
Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers

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

bởi MarkFI

Scientific Revolution (1600–1760)

22
0
0
0
0
0
Napier's Logarithms — Build a Paper Slide Rule and Multiply by Sliding

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

bởi MarkFI

Scientific Revolution (1600–1760)

33
0
0
0
1
0
Newton's Method — Chase a Root Down Tangent Lines You Draw

Newton's Method — Chase a Root Down Tangent Lines You Draw

bởi MarkFI

Scientific Revolution (1600–1760)

37
0
0
0
0
0
Pascal's Triangle — Build a Pyramid of Numbers by Adding

Pascal's Triangle — Build a Pyramid of Numbers by Adding

bởi MarkFI

Scientific Revolution (1600–1760)

26
0
0
0
0
0
Al-Khwarizmi's Algebra — Complete the Square with Paper Tiles

Al-Khwarizmi's Algebra — Complete the Square with Paper Tiles

bởi MarkFI

Thời Trung cổ

35
0
0
0
0
0
Hiển thị 24 trong 1689