Since youâll first need to be a police officer before becoming a detective, like all cops, youâll need a high school diploma, or even an associateâs or bachelorâs degree for some of the higher ranks. Some law enforcement agencies may require additional training.
The invention of a practical steam engine had an immediate effect on employment, first in Great Britain and later around the world. England had huge natural resources of coal that could fuel steam engines, and this drove the creation of mills and factories that turned out the goods that people had been creating by hand.he invention of a practical steam engine had an immediate effect on employment, first in Great Britain and later around the world. England had huge natural resources of coal that could fuel steam engines, and this drove the creation of mills and factories that turned out the goods that people had been creating by hand.
As these inventions created new manufacturing and industry, many people also moved away from farms into cities. It was a time of very rapid change in the world. Date Event 1712 The steam engine is invented. Thomas Newcomen invents the first steam engine. It is not very useful yet, but the idea of using steam to make machines go will be important to the Industrial Revolution. 1764 The spinning jenny is invented. James Hargreaves, a British carpenter and weaver, invents the spinning jenny. The machine spins more than one ball of yarn or thread at a time, making it easier and faster to make cloth. 1769 James Watt improves the steam engine.