How to build a time machine

Paul Davies

    Research output: Contribution to journalArticle


    This article provides information on time machines. For decades, time travel lay beyond the fringe of respectable science. In recent years, however, the topic has become something of a cottage industry among theoretical physicists. Understanding the relation between cause and effect is a key part of attempts to construct a unified theory of physics. If unrestricted time travel were possible, even in principle, the nature of such a unified theory could be drastically affected.
    Original languageEnglish
    Pages (from-to)14-19
    Number of pages6
    JournalScientific American
    Issue number1
    Publication statusPublished - 2006


    • time travel
    • space and time
    • science fiction
    • physics theory


    Dive into the research topics of 'How to build a time machine'. Together they form a unique fingerprint.

    Cite this