The valve is a simple variable-geometry device that controls the opening and closing of the specified flow window or valve curtain area as determined by the camshaft and rocker ratio. The valve curtain area is defined as the flow window created by the open valve at maximum valve lift.
CALIFORNIA LEGENDS The California Gold Rush In the cold morning hours of January 24, 1848, James Marshall, a construction foreman at Sutter s Mill, was inspecting the water flow through the mill s tail race.
The California Gold Rush was one of the most influential events in California's history and equally significant to the country as a whole. It caused hundreds of thousands of people from all over the world to make the long, dangerous journey to California in hopes of striking gold.