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Mineralogy
Ìtọ́nisọ́nà 5 wà
Àwọn Ìtọ́nisọ́nà (5)
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
láti ọwọ́ Astro
Àwọn Viking
61
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
láti ọwọ́ Astro
Àwọn Viking
58
0
0
0
1
0
Understanding Tantalum from Columbite-Tantalite — The Conflict Metal Inside Every Phone
láti ọwọ́ Peter
Kẹ́míkà
52
0
0
0
2
0
Léwu
Extracting Neodymium-Rich Rare Earth Oxide from Monazite — The Magnet Metal That Reshaped Technology
láti ọwọ́ Peter
Kẹ́míkà
37
0
0
0
11
0
Gold Panning
láti ọwọ́ Peter
Àwọn Ohun Èlò
19
0
0
0
1
0
Gbogbo 5 ti farahàn