that "Mayday, Mayday" originates from the French "m'aidez" which means "help me"? that seagulls were protected by law in Gt. Britain after the 1st world war because they could "report" the presence of a U-boat by the way they flocked together above it?
that the term ‘displacement’ comes from Archamedes principle, which states that the upthrust on a vessel is equal to the mass of the volume of water displaced, and until the mass of displaced water equals the weight of the ship, the ship will sink. The displacement will decrease or increases according to what is placed on board, or taken off the ship, so that it's virtually impossible to quote a 'correct' number. That's why different sources often give different displacement values.
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