UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Kubara
Ibishushanyo 40 birahari
Ibishushanyo (40)
Baudot Code and the Teleprinter
na Pixel
Digitale
29
0
0
0
1
0
The Chappe Semaphore Telegraph
na Astro
Ubumenyi bw'Umucyo
32
0
0
0
2
0
Hollerith Tabulator
na Mark
Kubara
29
0
0
0
0
0
Zero and Place-Value — Build an Abacus and Count Like the World Does
na Mark
Ibihe byo Hagati
34
0
0
0
0
0
The Sand Reckoner — Count the Grains and Tame Huge Numbers
na Mark
Kera
28
0
0
0
0
0
Magic Squares — Arrange Numbers So Every Line Adds the Same
na Mark
Kera
17
0
0
0
0
0
The Mercator Map — Peel an Orange and See Why Flat Maps Lie
na Mark
Renaissance (1400–1600)
21
0
0
0
0
0
Trigonometry — Build a Clinometer and Measure a Tree's Height
na Mark
Kera
25
0
0
0
0
0
The Number e — Grow Money and Meet the Constant of Change
na Mark
Scientific Revolution (1600–1760)
20
0
0
0
0
0
The Birth of Probability — Roll the Dice and Find the Odds
na Mark
Scientific Revolution (1600–1760)
27
0
0
0
0
0
Descartes' Coordinates — Plot a Treasure Map and Draw with Numbers
na Mark
Scientific Revolution (1600–1760)
20
0
0
0
0
0
Napier's Logarithms — Build a Paper Slide Rule and Multiply by Sliding
na Mark
Scientific Revolution (1600–1760)
26
0
0
0
1
0
Newton's Method — Chase a Root Down Tangent Lines You Draw
na Mark
Scientific Revolution (1600–1760)
28
0
0
0
0
0
Pascal's Triangle — Build a Pyramid of Numbers by Adding
na Mark
Scientific Revolution (1600–1760)
20
0
0
0
0
0
Al-Khwarizmi's Algebra — Complete the Square with Paper Tiles
na Mark
Ibihe byo Hagati
19
0
0
0
0
0
Fibonacci Numbers — Count the Spirals on a Pinecone
na Mark
Ibihe byo Hagati
25
0
0
0
0
0
Perfect Numbers — Find the Numbers That Equal Their Own Parts
na Mark
Kera
21
0
0
0
0
0
Heron's Square Roots — Fold a Rectangle Toward a Square
na Mark
Kera
22
0
0
0
0
0
Euclid's Algorithm — Find the Biggest Shared Measure with Paper Strips
na Mark
Kera
23
0
0
0
0
0
Sieve of Eratosthenes — Hunt Prime Numbers on a Grid
na Mark
Kera
21
0
0
0
0
0