9:09
Visualizing Soil Properties: Water Infiltration
31:25
002 How Water Moves Through Soil
14:02
The Bizarre Paths of Groundwater Around Structures
8:54
Germany’s Far-Right Comeback | NYT Opinion
21:21
JUST IN: Rand Paul Gives Epic Warning On Debt, Takes Aim At GOP Colleagues For Increasing Spending
20:32
Why Is Desalination So Difficult?
11:51
How to Clean Sewage with Gravity
20:25