Tuesday, July 20, 2010

Forces of Nature

This was a tree which once stood strong in a forest. Its former part of the forest has been cleared in a way that no machinery ever could.


Last winter, the (now) seemingly gentle waterfall in the picture above began to freeze. Ice collected and created a type of dam which lasted until a warm day in April. With temperatures around 70 degrees (F), the waterfall gained power from the melting snow at its source. Simultaneously, the ice dam weakened in the sun until the water was able to explosively push through. The power from it prevented the water volume from following the usual river path (which curves to the right of this photo). The rush of the water alone, with the debris and rock carried by it, shredded trees and a telephone pole in its new path. The result was stunning in the demonstration of shear force.

These photos were taken in June, and under the soil there were still mounds of ice and snow amongst the forest debris. (Virvasdalen, Nordland, Norway)



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