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Why do waves curl up C ZYTAMY PO ANGIELSKU

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FOTON 89, Lato 2005 64

C ZYTAMY PO ANGIELSKU

Why do waves curl up

Why do waves curl up on top as they approach the shore?

Near the shore the water is shallow. The water at the bottom of the wave is slowed by friction against the sand below, causing the upper layers of the wave to

„outrun” the lower layers. As the uppermost layers run past the layers below, they are no longer supported by the water below and fall because of gravity. And so the wave curls.

B320,Quantum, Volume 11, Number 4, March/April 2001.

Dictionary:

wave – fala shore – brzeg shallow – płytki slowed – spowalniana friction – tarcie layer – warstwa

supported – podtrzymywany

Polecamy książkę laureata Nagrody Nobla Leona Ledermana, z którym wywiad zamieściliśmy

w Fotonie 80, wiosna 2003 Published 2004 by Prometheus Books

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