SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Madini
Mipango 5 inapatikana
Miradi (5)
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
na Astro
Waviking
41
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
na Astro
Waviking
35
0
0
0
1
0
Understanding Tantalum from Columbite-Tantalite — The Conflict Metal Inside Every Phone
na Peter
Kemia
31
0
0
0
2
0
Hatari
Extracting Neodymium-Rich Rare Earth Oxide from Monazite — The Magnet Metal That Reshaped Technology
na Peter
Kemia
27
0
0
0
11
0
Gold Panning
na Peter
Nyenzo
3
0
0
0
1
0