Friday, November 28, 2008

Waterline




Waterline: "Waterline refers to an imaginary line marking the level at which ship or boat floats in the water. To an observer on the ship the water appears to rise or fall against the hull . Temperature also affects the level because warm water provides less buoyancy, being less dense than cold water. Likewise the salinity of the water affects the level, fresh water being less dense than salty seawater."

No comments:

talk nineteen to the dozen

  to speak rapidly and without stopping