Audiobook Demo New*
Description
Vocal Characteristics
Language
EnglishVoice Age
Young Adult (18-35)Accents
North American (General)Transcript
Note: Transcripts are generated using speech recognition software and may contain errors.
the in Ardo DaVinci have spent much time pondering the problem of flight. He believed that if humans could fly like birds, they might create a second world of nature. He designed a parachute using the shape of a Roman military tent, as well as a form of helicopter. But from about 15 03 he concentrated on the study of bird flight and attempted to copy their use of flapping wings. Within two years, he had filled a notebook with sketches and detailed notes. Each spring in the days before the Chinese New Year, over 140 million people travel across China by train, bus and air to celebrate with their families. It is the largest human migration in the world. Railroad stations are packed with noisy crowds of excited people. Many have not been home for months or even years. After the festival, chaos takes over again. As everyone makes the return journey. We consume vast amounts of electricity to power transportation, lighting, heating and air conditioning systems as well as domestic equipment, and virtually everything we now do or by involves computers of some kind. The world's banks, businesses and even governments rely on electronic communications. Since the car was invented at the end of the 18 hundreds, we have come to rely on it. Their engines are much more efficient than they used to be, but their average fuel consumption has not improved because most of them are so heavy and powerful.