Related Items   from Encarta  
Gravitation
Physics: Gravity
Force
Geodesy: Gravity and Geopotential
Geophysics: Gravity and Tides
Weightlessness
acceleration of falling objects
astronomy and astrophysics
devices propelled by gravity
Earth’s gravity
human physiological effects
measuring gravity
Moon
physics and gravity
pictures and illustrations
quotations
scientific discoveries
space exploration
speed of gravitons
time and gravity
description of effect
Einstein’s general theory of relativity
frame dragging
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