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SOURCES OF ENERGY, CONS, ENRICO FERMI, Stefano Dal Checco - Coggle Diagram

- - - - derives its explosive force from release of atomic energy through the fission of nuclei
        
        the products of fission create a chain reaction, and a uncontrollable release of a lot of energy
    - - produce a big explosion, with strong shock wave and a lot of intense radiation
        
        radiation is very dangerous for the life
    - - atomic bomb was used in the II war mondial
        
        U.S.A attacked japan
        
        Hiroshima
        
        Nagasaki
  - - - nuclear power
        
        naturally-occuring
        
        heat and light emitted by sun
        
        man-made
        
        nuclear power plants
  - - - to produce havier atoms and energy
        
        is virtually inexhaustible
      - a large amount of energy
      - a few radioactive products
    - - work by fusion
        
        hydrogen nuclei fuse to form helium and relase a large amount of energy
  - - - uranium or plutonium
      - during fission
        
        neutron hits uranium atoms splitting their nuclei
        
        heat and radiation are released
- - - - There are 3 main fossil fuels formed in the Earth's crust:
        
        Coal: is recovered from the Earth by mining and provides 27% of the world's energy.
        
        Oil: is recovered by drilling wells in the Earth, before using this product it must be refined. Oil provides 40% of the world's energy.
        
        Natural gas: is a mixture of many hydrocarbon gases, before using it it must be refined in methane. Natural gases provides 23% of the world's energy.
  - - - Warming above 1.5°C risks:
        
        further sea level rise
        
        extreme weather
        
        biodiversity loss and species extinction
        
        food scarcity
        
        worsening health
        
        poverty for millions of people worldwide.
- - - - it encompasses wood,crops,residues from agriculture or forestry and the organic component of industrial and municipal waste
      - It can be converted into energy using several methods
        
        Burning
        
        Pyrolysis
        
        Anaerobic digestion(producing methane)
        
        Alcohol fermentation (producing gasohol)
    - - It exploits the natural heat inside the Earth to produce heating or electricity
        
        Under certain conditions water or hot underground steam is used to generate electricity
    - - it uses airflow to produce electrical energy too
        
        Wind spins the long blades of wind turbines whose movement is transformed into electricity by a generator
    - - The production of hydroelectric energy by large-scale dams and by small-scale plants,providing electricity to small villages and islated areas
        
        River hydroelectricity works by drawing kinetic energy from rivers without the use of a dam
    - - It is used for heating
      - Sunlight is converted directly into electricity through photovoltanic cells
- - - - They consist of a series of ascending pools that are reached by swimming against a stream of water
- - - - In this year he also published his first major discovery
        
        FERMI-DIRAC STATISTICS
        
        discovery to understand the specific features of gas theory and metal conductivity.
      - At 1938 Enrico Fermi went with his family to Stockholm to receive the Nobel Prize for Physics.
        
        After he went to the United States to escape from racism in Italy Towards Jews, because his wife Laura was Jewish.
        
        He entered at Columbia University. Here he produced a beam of neutrons and proved that the fission of uranium was possible. Military were very interested about that, so he moved to Chicago and directed the operation of the first self-sustaining chain reaction created by man.
        
        He become a leaders of the team and builidings the first nuclear reactor: THE CHICAGO PILE-1.
        
        STARTED ATOMIC AGE, and Fermi partecipated in the costruction of the atomic bomb in 1944.
        
        At 1954 he died in Chicago at the age of 53 due to stomach cancer, probably caused by exposure to radiation.
      - In 1933 he evolved the betadecay theory, demostrating that nuclear transformation occurs in almost every element subjected to neutron bombardment.