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Index Entry
Dynamic Frame of Reference:
"has moved angularly thousands of miles; and the beam of his continuous, up-pointing in the heavens, relative to the Sun and galaxy, has swept billions of miles. As he soon rockets toward the Moon he will find his feet pointing gradually and comfortably toward the Moon which he had just previously pointed to as ‘up.’
"If he persists in the up-and-down language man may never communicate accurately with other men for they do not employ the same meanings, either from moment to moment, or in respect to their individual ‘ups’ and ‘downs.’ …
"Only when man learns to say in and out relative to designated common centers (for example, of Earth) is the meaning constantly reliable. The sky is ‘outward’ to all men, at all places, at all times, on any planet. While enjoying an infinity of individual ‘ins,’ we, anywhere in the Universe, also enjoy one common nonsimultaneous, omnidirectional aggregate called ‘out.’
"As the constantly reliable replaces the interrupted inaccuracy of the past moment, the yesterdays of inaccuracy dissolve
