Re: Eyjafjallajökull Volcano Web cam! (Amazing stuff)
Here is a pretty recent satellite image of the ash trail!
BTW, yeah, a few years ago I saw some data on what the ash/micro glass particulates do to turbine engines. It's crazy. like you said, the heat melts the glass rock, and it hardens on the turbine blades causing failure of thrust and fire shoots out the back of the engine. Scary stuff.
A few documented cases of large passenger planes went through ash clouds, and both lost engine power until 300 tries to turn them back on at a lower altitude (out of the ash cloud). very lucky..
The dangers of Katla would be the larger quantities of CO2. This caused a large famine in eastern Europe, and had a possible hand in the French Revolution. Wild stuff.
Potatoes also became a primary crop as well.
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