A dangerous wave.

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Presentation transcript:

A dangerous wave

A wave is a disturbance that propagates through water or air.

A wave can be quite an attraction…

But it can also bring death…

Tsunami – a harbour wave

Tsunami – a harbour wave

What causes tsunami.

An eruption of submarine volcano

Underwater tectonic activity Sudden subsidence or upheaval of the ocean bottom

An asteroid hitting the Earth

Only a knowledge of reasons which cause tsunami and methods of early diagnosing its occurencies, can prevent us from a catastrophe. Possibilities of diagnosing we owe to physics.

Based on: http://www.if.uj.edu.pl/pl/PFNMO/edukacja.php http://pl.wikipedia.org/wiki/Fala