540 HYDRODYNAMICS. 



Motion of 



Water in 



Pipes and 



Canals. 



TABLE I. CONTINUED. 



Computed by Mr Smeaton, for shewing the Friction of Water in Horizontal Pipes. The Bore of the Pipe being 

 given, and the Velocity of the Water therein, the Height of Head, or Column necessary to overcome the Friction 

 and produce that Velocity, is shevm ly this Table for 100 Feet in length. 





N.B. Find the velocity of the water per second in feet and inches in the first column, or in inches in the 

 second; and underneath, the diameter of the bore in inches (disposed in the uppermost row) you will find the 

 perpendicular height of a column of water in feet and inches and 10th necessary to overcome the friction of that 

 pipe for 100 feet in length, to obtain the given velocity. 



