Some people would move into cities, creating urban areas, which resulted in more crops, which were also cheaper, which meant a larger population and people lived longer due to price and availability of good food
The movement when land started to be enclosed with fences, and wealthy landowners bought land from farmers who then moved to cities. Farming became a profitable business.
The water frame was a large spinning machine invented by Richard Arkwright that would be able to cope with the increased demand. It got its name because it needed energy from a water mill to power it.