Найдите ответы на во Текст AIRPLANES AND SECURITY A few hundred years ago the main forms of transport were walking or riding a horse, donkey, camel and elephant, depending on where you lived. Nowadays, in most countries long journeys involve some form of motorized transport. People today tend to travel longer distances, more often and at much higher speeds. As a result the world has shrunk over the last century and we now live in a global economy. There are great advantages in this, but there is a down side too. More travel has also resulted in noise and air pollution, increased stress and damages to local environments and the larger ecosystem. I am going to tell you about airplane travel. It is the fastest, to my thinking, more convenient means of travelling, because it saves our time and sometimes money. For instance, in the USA, if you travel from east coast to the west by air jet, it results cheaper for you than to travel by train. In 1903, the Wright brothers made the first controlled machine-powered flight. It only lasted 12 seconds but changed the world forever. A century later, air travel is no longer a miracle; it's something, we take for granted. One billion air passengers now fly every year — that's equivalent to a sixth of the world's population.