Technology has been a key cumulative process in the human experience. It can be best understood in a historical context that traces the evolution of early human beings from a period featuring the use of very simple tools to complex large-scale networks that have an impact on most contemporary human life.

In ancient world the ancient people used different technology for grinding of grains. Monjolo is such a primitive hydraulic machine that was introduced in Brazil by the Portuguese during the colonial period. The genius man built this automatic machine using primitive technology that produces work without human effort. Falling water replaces human calories to perform a repetitive task.”

This automatic hammer can be used to peel and grind dry beans, resulting in a thicker flour. It is formed by a wooden log suspended so that the part that supports the pestle is larger than the other, which ends with a trough. Her idea is really innovative. He used fire to make the hole in the wooden beam. Then he sets other hammer like round wooden log that is comparably hard.  At the end of the video you can see the hammer is girding some hard soil.

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