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Lowery0

    The World Wide Web is a giant virtual city
    0:31
    What is a web address
    0:28
    Uses of the World Wide Web
    0:28
    What is the World Wide Web
    0:32
    The glass affects us more than we thought
    0:17
    Why is the material transparent
    0:36
    Why is the material transparent
    0:36
    Why does light penetrate glass
    0:34
    The origin and function of quartz
    0:40
    Elements of glass
    0:29
    New measures adopted in the Netherlands after 1953
    0:56