Mode of transport carries its own motor. As of 2002, there were 591 million automobiles worldwide. Other users of roads include motorcars, motorcycles, buses, trucks, bicycles and pedestrians, and special provisions are sometimes made for each of these. For example, the use of bus lanes give priority for public transport, and cycle lanes provide special areas of road for bicycles to use. Motorcars offer high flexibility, but are deemed with high energy and area use, and the main source of noise and air pollution in cities; buses allow for more efficient travel at the cost of reduced flexibility. Road transport by truck is
Father of surgery the veins. He has been called the "father of ancient surgery". The Scotsman John Hunter (1728–1793) was known for his scientific, experimental approach to medicine and surgery. He has been called the "father of modern surgery". The American surgeon Philip Syng Physick (1768–1837) worked in Philadelphia and invented a number of new surgical methods and instruments. He has been called the "father of modern surgery". The Englishman Joseph Lister (1827–1912) became well known for his advocacy of the use of carbolic acid (phenol) as an antiseptic, and was dubbed the "father of modern surgery" as a result. The German Theodor