Apparent Motion


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Related to Apparent Motion: Induced motion

apparent motion

[ə′pa·rənt ′mō·shən]
(mechanics)

Apparent Motion

(religion, spiritualism, and occult)

It has become astrological tradition to speak about the zodiac and the heavenly bodies as if they were revolving around the Earth while Earth remains stationary. So that other people do not regard astrology as locked in a pre-Copernican worldview, astrologers sometimes specify that they are talking about the apparent motion of the stars and planets. In this custom, astrologers are following the same tradition as everyone else who refers to the daily appearance and disappearance of the Sun—for example, as the “rising” and “setting” of the Sun—even though most people in industrialized societies know that it is the axial rotation of the Earth that causes this apparent motion.

References in periodicals archive ?
A more subtle study of apparent motion also reveals that visual attention can straddle the visual midline.
Apparent motion between shapes differing in location and orientation: A window technique for estimating path curvature.
The priming paradigm empolyed in the present study can be used to investigate the process of mental transformation in a static image as well as apparent motion in a dynamic image.
B-7 "Making a sun Clock" (using a sundial), and B-8 "Plotting the Apparent Motion of the sun" (using a clear plastic hemisphere).
Mackenzie and Bingham (1985) reported that apparent motion influenced the association between IT and Wechsler IQ.
A research program was initiated to identify the factors that are critical for the accurate perception of apparent motion in animated mimic displays (Bennett, 1993; Bennett & Madigan, 1994; Bennett & Nagy, 1996).
As a central case-study, this proposal investigates human visual apparent motion perception in V1/2/3 and V5/MT+.
Our 24-hour day is based upon this apparent motion of the Sun, because the planet upon which we stand rotates on its axis every 24 hours.
The pair's motion through space and nearness to us give it an extraordinarily rapid apparent motion across the backdrop of distant stars.
As the object approached the Earth, its apparent motion accelerated as it brightened to reach almost 13th magnitude before it started to enter the Earth's penumbra about 01:17 UT.
It turns at the same rate but in the opposite direction of Earth's rotation, thus effectively cancelling the sky's apparent motion for any telescope mounted on it.
This lack of apparent motion makes them ideal celestial landmarks for anchoring a grid system, similar to earthly latitude and longitude, used to mark the positions of celestial objects.