The crane is a sort machine that is an integral

Where can we use the cranes? The cranes are being used in versatile industries after it came to light. It has been seen a very lucrative business as well. The growing economy has helped a lot to the people to have business relating to transport, shipping, engineering and construction also. The real estate companies and bridge construction have made the crane business profitable. India has seen incredible economic growth during last 10 years which has helped construction of innumerable buildings, towers and flyover as well as bridges. These high-tech machines are a great support for lifting the heavy objects which is out of question. The invention and development of the cranes The ancient Greece gets credit when the questions of invention of the cranes arise. It was developed to lift huge loads in 6th century B.C. It got popularity in ancient Rome during Roman Empire when the real estate and construction industries started improving to the skies. The Roman started redeveloping the crane more dynamic and useful by putting more modern technology and science which helped to the great extent. However, it was manufactured by woods and still confined with human powered. This crane is popularly known as treadwheel crane. With the demise of Roman Empire in the high Middle Ages this enormous machine was reintroduced. The treadwheel crane played a vital role in harbour and mining industries inexpensively. Though humans are capable of working with great force and intelligence, the crane has a great support to load and unload tons of heavy objects such as; stones, endangered lorry, buses and such other objects with less cost and manpower. There are basically two sorts of cranes such as; mobile and fixed. Again, there are also sub-categories like; truck-mounted, crawler, aerial and rail board and side lift crane etc. The fixed crane has been subcategorized as hammerhead, gantry, bulk-handling, telescopic, tower and self-erecting loader. The transportation and shipping industries have taken advantage greatly as far as crane is concerned. The truck and lorry definitely can transport the goods from one place to other. However, lifting the heavy goods is impossible in case of truck and lorry. The difference between the cranes in modern age and ancient age is poles apart. The invention of sophisticated iron and steel has made the crane stronger. Last of all, this incredible machine of lifting heavy loads is a boon to the not only human being but also industrial world.