Over 200 Tons of Oil Leaked -- How Much Over 200?

The following was reported by the Associated Press on 21 January 2007.

   "LONDON - A damaged ship grounded off the English coast 
    leaked more than 200 tons of oil [...]."

   "Britain's Department for Transport said more than 200 containers 
    from the ship, which was listing at a 30-degree angle, had slid 
    into the sea [...]."

   "Some of the ship's approximately 3,000 tons of diesel and other 
    fuel had leaked out through a crack in the vessel's port side [...].

   "About 220 tons of oil has been lost [...]."
  1. Draw a picture of a 30-degree angle.

  2. The ship lost about ________% of its "diesel and other fuel."

  3. In this case, the word over and the phrase more than imply ________%.

More... Unit of Measurement: toe

When measuring oil, GDT usually thinks in units of gallons instead of tons which prompts the question: How many gallons of oil are in a ton? It turns out GDT's question is non-trivial.

The following was copied from "How Many? A Dictionary of Units of Measurement"© by Russ Rowlett and the University of North Carolina at Chapel Hill.

Toe is a "symbol for tonne of oil equivalent, a unit of energy used in the international energy industry. 1 toe represents the energy available from burning one tonne (metric ton) of oil; this is defined to be exactly 107 kilocalories, equivalent to approximately 7.4 barrels of oil, 1270 cubic meters of natural gas, or 1.4 tonnes of coal. 1 toe is also equivalent to 41.868 gigajoules (GJ), 39.683 million Btu (MM Btu) or dekatherms, or 11.630 megawatt hours (MWh)."

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Creator: Gerald D. Thurman [gthurman@gmail.com]
Created: 22 January 2007

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