Ushirikiano
SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Jiolojia
Mipango 31 inapatikana • Vijamii 9
Vinjari Vijamii
Miradi (31)
Hatari
Asbestos Fibre: Crude Chrysotile Hand-Cobbed into No. I and No. II (Cirkel, 1910)
na Forge
Madini
6
0
0
0
0
0
Crude Oil from a Drilled Well: the American Cable-Tool Method (Crew 1887)
na Peter
Uchimbaji madini
13
0
0
0
0
0
Expanded Perlite: Volcanic Glass Puffed in a Minute of Fierce Heat
na Mary
Petrolojia
9
0
0
0
0
0
Mipira au Vijiti: Vyombo vya Habari Huamua Bidhaa, Si Unene Tu
na Emma
Uhandisi
45
0
0
0
0
0
The Cone Crusher: A Parallel Zone Nothing Gets Past
na Martin
Mitambo
44
0
0
0
0
0
Sorting by Size: Why a Screen Never Makes a Clean Cut
na Emma
Uhandisi
43
0
0
0
0
0
Grinding in a Tumbling Mill: Critical Speed, and Why the Media Are Graded
na Emma
Mitambo
40
0
0
0
0
0
The Gyratory Crusher: A Machine With No Idle Half-Stroke
na Martin
Mitambo
29
0
0
0
0
0
Breaking Stone by Compression: The Nip Angle Decides Everything
na Martin
Mitambo
46
0
0
0
0
0
Ore Dressing
na Mary
MAZINGIRA
50
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
na Astro
Waviking
70
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
na Astro
Waviking
72
0
0
0
1
0
Understanding Tantalum from Columbite-Tantalite — The Conflict Metal Inside Every Phone
na Peter
Uchimbaji madini
56
0
0
0
2
0
Hatari
Extracting Neodymium-Rich Rare Earth Oxide from Monazite — The Magnet Metal That Reshaped Technology
na Peter
Uchimbaji madini
45
0
0
0
11
0
Gold Panning
na Peter
MAZINGIRA
35
0
0
0
1
0
Ruda bagienna — zbieranie rudy darniowej z torfowisk i bagien
na PaniRoza
Uchimbaji madini
82
0
0
0
0
0
청자 도토 채집 — 강진 철분 점토 수확과 숙성
na NariYa
Jiolojia
58
0
0
0
0
0
Estrazione del Marmo di Carrara — Dalla Cava al Blocco Squadrato
na SignoraRosa
Uchimbaji madini
44
0
0
0
0
0
अभ्रक संग्रहण झारखंड — खदान से मस्कोवाइट अभ्रक पत्तियाँ निकालना
na DidiiKamal
Uchimbaji madini
40
0
0
0
1
0
Recolección de Obsidiana — Identificación y Extracción de Vidrio Volcánico en México
na SeñorMartillo
Jiolojia
56
0
0
0
0
0
کھیوڑا نمک کان سے گلابی نمک نکالنا — پاکستان کا قدرتی پہاڑی نمک
na AmmiPeach
Uchimbaji madini
57
0
0
0
0
0
Kukusanya Udongo wa Mchwa — Nyenzo ya Ujenzi wa Jadi ya Afrika Mashariki
na MzeeJengo
Keramik na Udongo
52
0
0
0
0
0
Kukusanya Salfa Asilia kutoka kwenye Amana za Volkano
na Peter
Jiolojia
101
0
0
0
6
0
Ukuthola Nokwenza Ubumba Lwasemfuleni — Isiko LaseZulu Lokwenza Izitsha
na MamaNomvula
Keramik na Udongo
52
0
0
0
0
0
Inaonyesha 24 kati ya 31