Geology 19 (Groundwater)
57:07
Geology 20 (Glaciers and Ice Sheets)
43:05
Geology 18 (Rivers and Springs)
16:29
Todas as barragens são temporárias
14:02
The Bizarre Paths of Groundwater Around Structures
46:01
Geology 21 (Deserts)
33:37
Something Strange Happens When You Trust Quantum Mechanics
55:52
Larry Meinert - Exploration for skarn deposits
52:00