Human Energy Use

Human examples of dexterity over 10,000 years are explained in Changing Environments (Morris et al, 2003a). Until 10,000 years ago creation lived as hunter gatherers in meek groups, this changed in the current interglacial stage or Holocene with the introduction of land. date 2. 19 varlet 82 of (Morris et al, 2003b) indicates that during the earlyish agriculturalist extremity homo had begun to domesticate animals that could be used for carrying and pulling. muscularity use add-ond from 0. 24 W (calculations Morris et al, 2003c, p 81-82) per twenty-four hour plosive per capita in the precedent period to 0. 8 W per day as it was realised that extra bodily efficacy obtained from food could be assist by the use of tools made from metals much(prenominal) as bronze and iron. Energy use advanced by using tools, and as we moved to the advanced agriculturalists period energy consumption more than doubled to 1 W. The industrial nightspot brought major changes in the use of e nergy with agriculture, transport and mining. in that location were increases in the use of fossil fuels as workplaces and homes were heated and the steam engine was introduced. (Morris et al, 2003d p 83). We can await in Figure 2. 9 page 82 of (Morris et al, 2003b), that during the period energy consumption rose to 4 W. The greatest increase of energy is 11 W in the technological society this was 10 W more than the early agriculturalists. This period sees energy increases in home, commerce, industry, agriculture and transportation. It is also during this time that we begin to see the use of fossil fuels to create electricity, flub and oil and also the introduction of nuclear fuel. There is a large increase in oil use during this period due to the increased use of transportation. (Morris et al, 2003d p 83).