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.
On January 24, 1848 James Marshall discovered gold at Sutter's Mill, touching off the California gold rush. On the 150th anniversary of Marshall's discovery, the Oakland Museum of California unveiled a series of exhibitions titled Gold Rush!California's Untold Stories.They are now closed at the Oakland Museum.ontact the Webmaster. On January 24, 1848 James Marshall discovered gold at Sutter's Mill, touching off the California gold rush. On the 150th anniversary of Marshall's discovery, the Oakland Museum of California unveiled a series of exhibitions titled Gold Rush! California's Untold Stories.