Maiden flight for world's largest aircraft. New sensor detects water contamination in real time. Currently, if you want to check water supplies for the presence of toxic bacteria, you have to take a water sample and then culture it in a lab over several days. In the meantime, it's impossible to say if the water source is safe to use. A group of students from the Technical University of Denmark, however, have created a sensor that they say can detect bacteria in water instantly, on the spot.
The optimal time for reconstruction and clean-ups is after the war, when people are returning to war-damaged areas and can be involved in the process. The best time to plan, however, is during the war so that the nation is ready to rebuild as soon as the war is over.
Weathering is an erosional process that involves the chemical break down of rock (such as limestone) and the mechanical wearing down of rock by a plantâs roots growing and pushing through it, ice expanding in its cracks, and abrasion from sediment pushed by wind and water.luvial geomorphologic processes are those related to rivers and streams. The flowing water found here is important in shaping the landscape in two ways. First, the power of the water moving across a landscape cuts and erodes its channel.