Fanno Creek is a 15-mile (24 km) tributary of the Tualatin River in the U.S. state of Oregon. Part of the drainage basin of the Columbia River, its watershed covers about 32 square miles (83 km2) in Multnomah, Washington, and Clackamas counties, including about 7 square miles (18 km2) within the Portland city limits. From its headwaters in the Tualatin Mountains (West Hills) in southwest Portland, the creek flows generally west and south through the cities of Portland, Beaverton, Tigard and Durham, and unincorporated areas of Washington County. It enters the Tualatin River about 9 miles (14 km) above the Tualatin's confluence with the Willamette River at West Linn. For thousands of years, the Atfalati (Tualatin) tribe of the Kalapuya inhabited the watershed. The first settler of European descent, Augustus Fanno, for whom the creek is named, arrived in the mid-19th century. Fanno Farmhouse, the restored family home, is a Century Farm on the National Register of Historic Places and is one of 14 urban parks in a narrow corridor along the creek. Although heavily polluted, the creek supports aquatic life, including cutthroat trout in its upper reaches. (Full article...)
Typhoon Haiyan(satellite image shown), the strongest tropical cyclone of 2013, causes extensive damage across the Philippines, with an estimated death toll in the thousands.
In mathematics, a line integral is an integral where the function to be integrated, be it a scalar field as here or a vector field, is evaluated along a curve. The value of the line integral is the sum of values of the field at all points on the curve, weighted by some scalar function on the curve (commonly arc length or, for a vector field, the scalar product of the vector field with a differential vector in the curve).
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