Friday, September 12, 2008

Rusty Titanic

Another theory why the "unsinkable" Titanic went down in 1912 was reported by the Discover Magazine.According to Robert Baboian,retired director of Texas Instruments' Corrosion lab,the shipp was a victim of rust.The Titanic was held together by 3 million rivets made with different type of iron than the hull plates,he noted.When the hull was finished, the ship stayed in seawater for a year while the inside was furnished.The dissimilar metals of the hull and rivets, bathed in electrically conductive seawater, might have created a circuit that slowly flecked away and weakened the rivets.One of the last photo taken before the ship's voyage shows a pattern that suggests the rivets were rusting faster than the hull plates.The Titanic collision with the iceberg could have popped the weakened rivets,which would explain a clicking sound reported by the survivors.The hull did not rip open, but a long opening just an inch wide between the hullplates could have sunk the ship.