The important achievements of physics and physicists who had made critical contributions to these achievements from the time of ancient Greek to the 1930's was overviewed in this paper. By analyzing the lives of　these physicists，we have found that the average life - span of these physicists was much higher than the human life expectancy during their time，and the golden ageswhen they made the achievements were often before their middle ages or even younger. What's more，the average of these golden ages was still getting lower with time. Our conclution is instructive to young scientific workers today.