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In astronomy, nutation is a slight 'nodding' of the Earth in space, caused by the varying gravitational pulls of the Sun and Moon. Nutation changes the angle of the Earth's axial tilt by about nine seconds of arc to either side of its mean position, a complete cycle taking just over 18.5 years.
 Research Nutation
In botany, nutation is the spiral movement exhibited by the tips of certain stems during growth; it enables a climbing plant to find a suitable support.
Nutation sometimes also occurs in tendrils and flower stalks. The direction of the movements, clockwise or anticlockwise, is usually characteristic for particular species.
Research Nutation
NS is an abbreviation for Neutron Star
NS is an abbreviation for Not Specified
NS is an abbreviation for Nova Scotia
NS is an abbreviation for Nuclear Ship
NS is an abbreviation for National Special
NS is an abbreviation for NATO Secret
NS is an abbreviation for New Series
NS is an abbreviation for New Style
NS is an abbreviation for North to South
NS is an abbreviation for Not Sufficient
NS is an abbreviation for Nutation Synchronous
Research NS
TANC is an abbreviation for Thruster Active Nutation Control
Research TANC
DANC is an abbreviation for Despin Active Nutation Control
Research DANC
DAND is an abbreviation for Despin Active Nutation Damper
Research DAND
DANDE is an abbreviation for Despin Active Nutation Damping Electronics
Research DANDE
GRANDE is an abbreviation for Ground Active Nutation Damping Electronics
Research GRANDE
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The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
©1993 - 2009 The Probert Encyclopaedia
Southampton, United Kingdom
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