| | Underwater Concreting and RepairThe construction of a wide range of structures including bridge piers, harbours, sea and river defences over many decades, and more recently the development of offshore oil fields, has required placement of concrete underwater. This process can be successfully carried out and sound, good quality concrete produced if sufficient attention is paid to... | | How to Develop a Perfect MemoryThis manual explains Dominic O'Brien's system intended to help the reader remember names, faces, telephone numbers, pass exams, learn languages, win at Trivial Pursuit and clean up at the blackjack table. O'Brien is able to memorize the sequence of 36 shuffled packs of cards using his method. ... |