Factories would not grow fast, and many jobs would stay very hard and slow. Travel would take much more time and effort. Cities would develop more slowly., the steam engine , Humans would have less energy and weaker bodies. It would be harder to survive in cold places. Population growth would be much slower., Learning to eat meat, Most people would not understand written information. Knowledge would stay with a small group only. Society would have less progress and fewer new ideas., Teaching people to read, People would still believe old ideas about the sky and planets. Science would grow more slowly because fewer facts were proven. Many questions about space would stay unanswered., Galileo explores the heavens.

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