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Tính toán

21 bản thiết kế có sẵn

Bản thiết kế (21)

Quadruplex Telegraphy

Quadruplex Telegraphy

bởi MarkFI

Điện tử

5
0
0
0
1
0
Baudot Code and the Teleprinter

Baudot Code and the Teleprinter

bởi PixelFI

Kỹ thuật số

7
0
0
0
1
0
The Chappe Semaphore Telegraph

The Chappe Semaphore Telegraph

bởi AstroIS

Quang học

3
0
0
0
2
0
Hollerith Tabulator

Hollerith Tabulator

bởi MarkFI

Tính toán

19
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

25
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

21
0
0
0
0
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

15
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)

18
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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

21
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)

19
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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)

23
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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)

18
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)

23
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)

26
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)

16
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

17
0
0
0
0
0
Fibonacci Numbers — Count the Spirals on a Pinecone

Fibonacci Numbers — Count the Spirals on a Pinecone

bởi MarkFI

Thời Trung cổ

17
0
0
0
0
0
Perfect Numbers — Find the Numbers That Equal Their Own Parts

Perfect Numbers — Find the Numbers That Equal Their Own Parts

bởi MarkFI

Cổ đại

18
0
0
0
0
0
Heron's Square Roots — Fold a Rectangle Toward a Square

Heron's Square Roots — Fold a Rectangle Toward a Square

bởi MarkFI

Cổ đại

21
0
0
0
0
0
Euclid's Algorithm — Find the Biggest Shared Measure with Paper Strips

Euclid's Algorithm — Find the Biggest Shared Measure with Paper Strips

bởi MarkFI

Cổ đại

17
0
0
0
0
0