If they live happy and healthy they build more and effieciently because of their bodies being capable to do more then when not being healthy
The focus is the place inside Earth's crust where an earthquake originates. The point on the Earth's surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.
I believe that it is Olmec.
Answer:
The reactor generated the first electricity from nuclear energy on December 20, 1951. Enrico Fermi led a group of scientists in initiating the first self- sustaining nuclear chain reaction. The historic event, which occurred on December 2, 1942, in Chicago.