Gill's Machinery Improved V1: Its Friction Reduced, Its Powers Increased, And Its Durability Promoted is a book written by Thomas Gill in 1839. The book discusses various ways to improve the efficiency and durability of machinery. Gill provides detailed explanations of how friction can be reduced, power can be increased, and durability can be promoted in machinery. The book is aimed at engineers and mechanics who are interested in improving the performance...