SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Mathematics
Mipango 61 inapatikana
Miradi (61)

Bevel Protractor
na Mark
Mathematics
24
0
0
0
0
0

Cloverleaf Interchange
na Mark
Mathematics
31
0
0
0
0
0

Hollerith Tabulator
na Mark
Kihesabu
29
0
0
0
0
0

Burroughs Calculating Machine
na Mark
SAYANSI
29
0
0
0
0
0

Cash Register
na Mark
SAYANSI
35
0
0
0
0
0

Slide Rule
na Emma
SAYANSI
27
0
0
0
0
0

Perspective Frame
na Mark
SAYANSI
26
0
0
0
0
0

Self-Working Card Trick
na Mark
Mbinu za Kadi
36
0
0
0
0
0

Volvelle Wheel Chart
na Mark
Ibukizi
54
0
0
0
0
0

Monochord
na Penny
Sauti na mitetemo
26
0
0
0
0
0

Zero and Place-Value — Build an Abacus and Count Like the World Does
na Mark
Zama za Kati
34
0
0
0
0
0

Projectile Motion — Launch a Ball and Measure Its Flight
na Penny
Scientific Revolution (1600–1760)
21
0
0
0
0
0

Hooke's Law — Stretch a Spring and Find Its Stiffness
na Penny
School Projects 11-15
25
0
0
0
0
0

The Pendulum — Time a Swing and Weigh Gravity
na Martin
Scientific Revolution (1600–1760)
25
0
0
0
0
0

The Sand Reckoner — Count the Grains and Tame Huge Numbers
na Mark
Kale
28
0
0
0
0
0

Air Has Weight — The Upside-Down Glass and Torricelli's Barometer
na Penny
Scientific Revolution (1600–1760)
26
0
0
0
0
0

Magic Squares — Arrange Numbers So Every Line Adds the Same
na Mark
Kale
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

Snell's Law — Measure How Light Bends (Laser and Protractor)
na Penny
Scientific Revolution (1600–1760)
24
0
0
0
0
0

Trigonometry — Build a Clinometer and Measure a Tree's Height
na Mark
Kale
25
0
0
0
0
0