Topic: ac
Definition:

  • a radioactive element of the actinide series
  • found in uranium ores an electric current that reverses direction sinusoidally
  • "In the US most household current is AC at 60 cycles per second"

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  • Resources:

    Natural History Museum
    Includes details of the permanent exhibitions, special events and education programmes, along with visitors information and online interactive exhibitions.
    http://www.nhm.ac.uk/

    Natural History Museum
    Includes details of the permanent exhibitions, special events and education programmes, along with visitors information and online interactive exhibitions.
    http://www.nhm.ac.uk/

    Natural History Museum
    Includes details of the permanent exhibitions, special events and education programmes, along with visitors information and online interactive exhibitions.
    http://www.nhm.ac.uk/

    Natural History Museum
    Includes details of the permanent exhibitions, special events and education programmes, along with visitors information and online interactive exhibitions.
    http://www.nhm.ac.uk/

    Natural History Museum
    Includes details of the permanent exhibitions, special events and education programmes, along with visitors information and online interactive exhibitions.
    http://www.nhm.ac.uk/

    The British Museum
    Home of one of the greatest collections of antiquities in the world.
    http://www.thebritishmuseum.ac.uk/

    The British Museum
    Home of one of the greatest collections of antiquities in the world.
    http://www.thebritishmuseum.ac.uk/

    The British Museum
    Home of one of the greatest collections of antiquities in the world.
    http://www.thebritishmuseum.ac.uk/

    The British Museum
    Home of one of the greatest collections of antiquities in the world.
    http://www.thebritishmuseum.ac.uk/

    The British Museum
    Home of one of the greatest collections of antiquities in the world.
    http://www.thebritishmuseum.ac.uk/

    University of Oxford
    The official site for Oxford University.
    http://www.ox.ac.uk/

    University of Oxford
    The official site for Oxford University.
    http://www.ox.ac.uk/

    University of Oxford
    The official site for Oxford University.
    http://www.ox.ac.uk/

    University of Oxford
    The official site for Oxford University.
    http://www.ox.ac.uk/

    University of Oxford
    The official site for Oxford University.
    http://www.ox.ac.uk/

    Social Science Information Gateway
    SOSIG aims to offer social scientists a quick and easy way of finding quality networked information that can support their work.
    http://www.sosig.ac.uk/

    Social Science Information Gateway
    SOSIG aims to offer social scientists a quick and easy way of finding quality networked information that can support their work.
    http://www.sosig.ac.uk/

    Social Science Information Gateway
    SOSIG aims to offer social scientists a quick and easy way of finding quality networked information that can support their work.
    http://www.sosig.ac.uk/

    Social Science Information Gateway
    SOSIG aims to offer social scientists a quick and easy way of finding quality networked information that can support their work.
    http://www.sosig.ac.uk/

    Social Science Information Gateway
    SOSIG aims to offer social scientists a quick and easy way of finding quality networked information that can support their work.
    http://www.sosig.ac.uk/

    The Open University
    A university offering courses by the distance learning method. Information includes details of courses offered, teaching methods and access to course resources.
    http://www.open.ac.uk/

    The Open University
    A university offering courses by the distance learning method. Information includes details of courses offered, teaching methods and access to course resources.
    http://www.open.ac.uk/

    The Open University
    A university offering courses by the distance learning method. Information includes details of courses offered, teaching methods and access to course resources.
    http://www.open.ac.uk/

    The Open University
    A university offering courses by the distance learning method. Information includes details of courses offered, teaching methods and access to course resources.
    http://www.open.ac.uk/

    The Open University
    A university offering courses by the distance learning method. Information includes details of courses offered, teaching methods and access to course resources.
    http://www.open.ac.uk/

    University of Cambridge
    Official site with links to, and information about, the departments, faculties, colleges, people, and organizations that make up the university.
    http://www.cam.ac.uk/

    University of Cambridge
    Official site with links to, and information about, the departments, faculties, colleges, people, and organizations that make up the university.
    http://www.cam.ac.uk/

    University of Cambridge
    Official site with links to, and information about, the departments, faculties, colleges, people, and organizations that make up the university.
    http://www.cam.ac.uk/

    University of Cambridge
    Official site with links to, and information about, the departments, faculties, colleges, people, and organizations that make up the university.
    http://www.cam.ac.uk/

    University of Cambridge
    Official site with links to, and information about, the departments, faculties, colleges, people, and organizations that make up the university.
    http://www.cam.ac.uk/