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【正文】 However, we must always consider the adverse effect of using energy.37 All of our main energy technologies have serious environmental consequences: 161。 The First World War in which 32 countries participated was a war using technological armament such as submarine, aircraft, carrier, poison gas, machine gun. Many lives were sacrificed in the war, showing the dark side of energy and technology.33 World War 2161。 Windmill is one of very important inventions in the Medieval Ages(中世紀(jì) ).161。 This was a great turning point in the meaning that man utilized wind as motion energy, as well as windmill(風(fēng)車 ) which is used in some area nowadays.25? War using arms161。 A wise man thought. Producing fire by ourselves is the better way!“161。 For transportation, the muscle of horses and the power of the wind in our sails took us to every corner of the world. 161。EnergyBy Yeung Chung Kuen (05996130) (12/03/2023)Revised by Mak11. What is Energy ? 2. Basic Definitions.3. Forms of Energy.4. A Short History of Energy.5. Dangerousness of Energy.6. Renewable Energy.7. Resources Related to Energy.Outline2What is energy ? Energy makes change。 For work, we used animals to do jobs that we couldn39。 Luxury is the mother of invention 161。 After man established civilization and made city, each city had their own army to guard their people from enemies. 161。 Windmill brought the improvement in efficiency of job and the spread of
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