"Porosity" Quotes from Famous Books
... facsimiles of the note might obviously be made, and the imitation would be complete. Porcelain biscuit, which has recently been used with a black lead pencil for memorandum books, seems in some measure adapted for such trials, since its porosity may be diminished to any required extent by regulating the ... — On the Economy of Machinery and Manufactures • Charles Babbage
... many new uses for water: It will not be long before every truck and every commercial flower garden will have overhead irrigation. This is merely gas pipes ("seconds" rejected for blow holes or porosity are usually used) supported on posts say six feet above the ground. They are usually placed parallel about fifty feet apart, which will make four to the acre square, and have a single row of holes and a handle on each pipe, so that the spray can ... — Three Acres and Liberty • Bolton Hall |