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  1. Time

    Time is the continuous progression of existence that occurs in an apparently irreversible succession from the past, through the present, and into the future. It is a component quantity of various measurements used to sequence events, to compare the duration of events, and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with three spatial dimensions. Scientists have theorized a beginning of time in the universe and an end. A cyclic model describes a cyclical nature, whereas the philosophy of eternalism views the subject from a different angle. Time is one of the seven fundamental physical quantities in both the International System of Units and International System of Quantities. The SI base unit of time is the second, which is defined by measuring the electronic transition frequency of caesium atoms. General relativity is the primary framework for understanding how spacetime works. Wikipedia

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  2. en.wikipedia.org

    Time is the continuous progression of existence that occurs in an apparently irreversible succession from the past, through the present, and into the future. [1] [2] [3] It is a component quantity of various measurements used to sequence events, to compare the duration of events (or the intervals between them), and to quantify rates of change of quantities in material reality or in the ...
  3. astronomy.com

    Jan 24, 2024Time is a complex concept that involves our sense of the past, present, and future, as well as the arrow of time and the order of events in the universe. Learn how physicists are exploring the origins of time and its connection to space, quantum mechanics, and gravity.
  4. discovermagazine.com

    In 1826, time took a strange turn in New Haven, Connecticut. According to historian Michael O'Malley, over several months, a new clock installed atop Town Hall ran slow and then fast in comparison with the clock that had set the local standard time for decades, at nearby Yale College. After cursing the clockmaker, the citizens discovered that ...
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