कला

सुन्दरता र कल्याण

हस्तकला

संस्कृति र इतिहास

मनोरञ्जन

वातावरण

खाना र पेय

रिभर्स इन्जिनियरिङ

विज्ञान

खेलकुद

प्रविधि

पहिर्न मिल्ने

ब्लुप्रिन्टहरू Sciencesकम्प्युटेशनल

कम्प्युटेशनल

२१ ब्लुप्रिन्टहरू उपलब्ध

ब्लुप्रिन्टहरू (२१)

Quadruplex Telegraphy

Quadruplex Telegraphy

Mark द्वारा

इलेक्ट्रोनिक्स

Baudot Code and the Teleprinter

Baudot Code and the Teleprinter

Pixel द्वारा

डिजिटल

The Chappe Semaphore Telegraph

The Chappe Semaphore Telegraph

Astro द्वारा

प्रकाशिकी

Hollerith Tabulator

Hollerith Tabulator

Mark द्वारा

कम्प्युटेशनल

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

Mark द्वारा

मध्य युग

The Sand Reckoner — Count the Grains and Tame Huge Numbers

The Sand Reckoner — Count the Grains and Tame Huge Numbers

Mark द्वारा

प्राचीन

Magic Squares — Arrange Numbers So Every Line Adds the Same

Magic Squares — Arrange Numbers So Every Line Adds the Same

Mark द्वारा

प्राचीन

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

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

Mark द्वारा

Renaissance (1400–1600)

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

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

Mark द्वारा

प्राचीन

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

Scientific Revolution (1600–1760)

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

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

Mark द्वारा

मध्य युग

Fibonacci Numbers — Count the Spirals on a Pinecone

Fibonacci Numbers — Count the Spirals on a Pinecone

Mark द्वारा

मध्य युग

Perfect Numbers — Find the Numbers That Equal Their Own Parts

Perfect Numbers — Find the Numbers That Equal Their Own Parts

Mark द्वारा

प्राचीन

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

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

Mark द्वारा

प्राचीन

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

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

Mark द्वारा

प्राचीन

१ २ अर्को