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Volcano Demonstration with Prof. Peter Kokelaar |
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We don't explain in detail how the demonstration
is conducted for obvious reasons! A container is placed in a hole in the
ground and filled with water. Debris - actually sponges - of various sizes
are added followed by the charge. When the charge explodes water and debris
are thrown upwards along a parabola - the debris have different mass: first
inertia and then momentum finally scatter the debris in a particular pattern
around the hole. This demonstrates why some of the heaviest (and most
deadly) missiles ejected during a volcanic eruption are found furthest from
their origin. Switch on sound and press play - the movie is quite large and may take a few seconds to start.
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