Chapter 3

   Time is an important idea in Ispace and Tspace and in the realm of infinity. Therefore we will be studying several of the different concepts of time, and from this study logical conclusions will be ascertained.
  The difference between Absolute time and Relative time: Sir Isaac Newton, in his publication of the Principia, stated that

"Absolute time exists merely as duration; it is not equivalent to human measurement. In fact, Newton's concept of absolute time is purely mathematical. Relative time is the time by which humans measure duration and change. Years, days, hours, minutes, and seconds are all examples of relative time." 1

   In other words, absolute time exists throughout the known and the infinite Universe without depending on any two bodies of matter being related through motion. It exists as a reality not dependent on space, matter, or energy. It could be viewed simply as 'existence.' For relative time to exist, however, there must be motion between two objects, such as the Earth and the sun, and then time is created as an abstract concept dependent on segments or units of the motion. Relative time is man made and does not exist in Nature, whereas absolute time does exist in Nature, simply because segments and numbers cannot be assigned to it, and because it is the existence of the Universe.
   Since we will be discussing only relative time in this chapter, it is not important to dwell on the difference between absolute time and relative time; however, since absolute time does come up from time to time in books and articles, it is good to have the knowledge of absolute time.
   The time that we use in our everyday lives, and the time used in most of the scientific equations is all based on the movement of the Earth around the sun. It is not based on the movement of anything else. Even nanoseconds are based on the movement of the Earth around the sun. We could say that movement is measured in speed, and that the Earth is traveling 67,000 miles per hour. We can state absolutely that speed is a constant and that for all scientific and logical practical purposes speed will never change. This means that 67,000 miles per hour is a constant related to the Earth's orbit around the sun. A day, an hour, a minute, a second, a nanosecond, etc. are distances moved by the Earth. An hour is 67,000 miles.

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