The
tip of the "ice-berg." Everybody knows that most of an iceberg
lies under the water, but most don't know that the amount beneath the
surface varies from about 50% to 99%. The cause of the variation is
largely in the amount of air that is trapped in the ice so affecting its
buoyancy. An average iceberg will be about 80-90% beneath the surface.
Very low lying pieces of ice of whatever size in the water are known as
"growlers". These often have a green tinge to them.
They are
known as growlers because they present a particular hazard to shipping
with the small amount visible above the water and the colour making them
especially difficult to see and therefore especially dangerous.
Paul
Ward - Pentax equipment, 100mm lens, 35mm film, K25.
This picture may not be copied or used in any manner without
prior written permission.
Previous
|
