Dunkirk: Where History Happened. We visit 10 places connected with the remarkable evacuation of the British Expeditionary Force from northern France in 1940. This feature was first published in the April 2010 edition of BBC History Magazine. Tuesday 25th May 2010.
The seepage velocity is less than the actual flow rate of the liquid or gas in the pores because the fluid moves only through the portion of the cross-sectional area S that is occupied by the pores.
Since their operations are essentially sequential, their cumulative time can be considered the total page load time. The front and back-end factors to site speed: A fast time is composed of both of these sides working in an optimal setup. Even after you've optimized your Front-end, speed gains can still be achieved by optimizing the Server-side. This means optimizing the way the page is generated by your server.