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* Variations in the Earth's orientation and length of day.
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Variations and Earth's
Variations in Earth's axial tilt can influence the seasons and is likely a factor in long-term climate change.
Not until the advent of deep-ocean cores and a seminal paper by Hays, Imbrie, and Shackleton, " Variations in the Earth's Orbit: Pacemaker of the Ice Ages ", in Science ( 1976 ) did the theory attain its present state.
Variations and orientation
Variations in the daytime position of the sun: Karl von Frisch proved that variations in the position of the sun over the course of a day provided bees with an orientation tool.
Variations and length
Variations in length, fletchings and heads are all recorded.
Variations in cane and other construction materials, the age of the reed, and differences in scrape and length will all affect the pitch of the instrument.
Variations in barrel length did exist, but those were the product of machining tolerances, differences between factories, and / or experimental long-barreled rifles.
Variations include face angle, face length, back angle, gullet width and depth, and a frost notch ( if necessary ).
Variations include having rings along the length of the straight back edge as found in the nine-ring guan dao, having the tip curl into a rounded spiral as in the elephant guan dao ( literally elephant Knife ), or featuring a more ornate design as exemplified by the dragon head guan dao.
" The Handel Variations consist of a theme and twenty-five variations, each of equal length, plus a much longer fugue at the end which provides the climax of the movement in terms of duration, dynamics, and contrapuntal complexity.
Variations and day
Variations on the ekkyklêma are used in tragedies and other forms to this day, as writers still find it a useful and often powerful device for showing the consequences of extreme human actions.
Variations about the average up to − 0. 3 % are caused by large sunspot groups and of + 0. 05 % by large faculae and bright network on a week to 10 day timescale.
In 1986 came " Variations on a Korean Folk Song " and the dragon drill that would place Brubaker solidly with George Zingali as the two greatest drill designers of the day.
Variations and .
Variations in aerator speeds during the latter two months of this study caused increased mixing and increased oxygen demand.
Variations in sound velocity should be measured rather than temperature, because more of the variables would be encompassed.
The 32 C Minor Variations with which he opened moved fluently yet logically from one to another, leaving the right impression of abundance under discipline.
Variations are common, and some are done with over-the-counter products.
Variations may also simply reflect the different resources available in a given time or area.
Variations of the story include that Dionysus had been insulted by a mortal and swore to slay the next mortal who crossed his path, creating fierce tigers to carry out his wrath.
* The San Francisco-based band Om mentions Absalom in their song " Kapila's Theme " from their debut album Variations on a Theme.
Variations in the character of the solution or in the conditions of deposition may cause a corresponding variation in the successive layers, so that bands of chalcedony often alternate with layers of crystalline quartz.
He also composed one large scale instrumental work in 1815 intended as a study in late classical orchestration: Twenty-Six Variations for the Orchestra on a Theme called La Folia di Spagna.
La Folia was the most monumental set of orchestral variations before Brahms ' Variations on a Theme by Haydn.
Best known in his time as a publisher, he is most familiar today as the composer of the waltz on which Ludwig van Beethoven wrote his set of thirty-three Diabelli Variations.
They constitute what is generally regarded as one of the greatest of Beethoven's piano pieces and as the greatest set of variations of their time, and are generally known simply as the Diabelli Variations, Op.
Variations of the spelling of his name include Abd ar-Rahman I, Abdul Rahman I and Abderraman I.
Variations occur based upon jurisdiction and national customs.
Variations in < sup > 53 </ sup > Cr /< sup > 52 </ sup > Cr and Mn / Cr ratios from several meteorites indicate an initial < sup > 53 </ sup > Mn /< sup > 55 </ sup > Mn ratio that suggests Mn-Cr isotopic composition must result from in-situ decay of < sup > 53 </ sup > Mn in differentiated planetary bodies.
Variations of the Compactron design were made by Sylvania and by some Japanese firms.
Variations of desserts can be found all around the world, such as in Russia, where breakfast foods such as bliny, oladi, and syrniki served with honey and jam are also popular as desserts.
At Vienna in 1883 he obtained his Ph. D. with the work Beiträge zur Variationsrechnung (" Contributions to the Calculus of Variations ").
Variations in the star's radial velocity — that is, the speed with which it moves towards or away from Earth — can be detected from displacements in the star's spectral lines due to the Doppler effect.
Variations of the Eucharistic Prayer are provided for various occasions, including communion of the sick and brief forms for occasions that call for greater brevity.
*< cite id = refMark1959 > W Markowitz ( 1959 ), " Variations in the Rotation of the Earth, Results Obtained with the Dual-Rate Moon Camera and Photograhic Zenith Tubes ", Astronomical Journal, vol. 64 ( 1959 ), pp. 106 – 113 .</ cite >
Regarding Schmidt's political naivety, Michael Steinberg, in his magisterial book, The Symphony, tells of Schmidt's recommending Variations on a Hebrew Theme by his student Israel Brandmann to a musical group associated with the proto-Nazi German National Party.
* Concertante Variations on a Theme of Beethoven for Piano ( left hand alone ) with orchestral accompaniment ; comp.
Earth's and orientation
In order to maintain this alignment, Hindu astrology uses an adjustment, called ayanamsa, to take into account the gradual precession of the vernal equinox ( the gradual shift in the orientation of the Earth's axis of rotation ).
He fundamentally defined his arbitrary orientation for the cell as being that in which the internal current would run parallel to and in the same direction as a hypothetical magnetizing current loop around the local line of latitude which would induce a magnetic dipole field oriented like the Earth's.
The idea that immediately suggested itself was that the star's declination varied because of short-term changes in the orientation of the Earth's axis relative to the celestial sphere – a phenomenon known as nutation.
He fundamentally defined his arbitrary orientation for the cell as being that in which the internal current would run parallel to and in the same direction as a hypothetical magnetizing current loop around the local line of latitude which would induce a magnetic dipole field oriented like the Earth's.
Earth's rate of rotation must be integrated to obtain time, which is Earth's angular position ( specifically, the orientation of the meridian of Greenwich relative to the fictitious mean sun ).
The orientation of the Earth's axis and equator are not fixed in space, but rotate about the poles of the ecliptic with a period of about 26, 000 years, a process known as lunisolar precession, as it is due mostly to the gravitational effect of the Moon and Sun on the Earth's equatorial bulge.
See Earth's location in the universe for an orientation.
The seasons occur because the Earth's axis of rotation is not perpendicular to its orbital plane ( the “ plane of the ecliptic ”) but currently makes an angle of about 23. 44 ° ( called the " obliquity of the ecliptic "), and because the axis keeps its orientation with respect to an inertial frame of reference.
Later instruments of the " astatic " type used opposing magnets to become independent of the Earth's field and would operate in any orientation.
Newer calculations showed that if the Starfish Prime warhead had been detonated over the northern continental United States, the magnitude of the EMP would have been much larger ( 22 to 30 kilovolts / metre ) because of the greater strength of the Earth's magnetic field over the United States, as well as the different orientation of the Earth's magnetic field at high latitudes.
According to the standard reference text on nuclear weapons effects published by the U. S. Department of Defense, " The peak electric field ( and its amplitude ) at the Earth's surface from a high-altitude burst will depend upon the explosion yield, the height of the burst, the location of the observer, and the orientation with respect to the geomagnetic field.
On a larger time-scale, cyclic changes in climate and sea level are caused by Milankovitch cycles: cyclic changes in the orientation and / or position of the Earth's rotational axis and orbit around the Sun.
Relatively small changes in the orientation of the Earth's axis or length of the seasons can be a major influence on the Earth's climate.
For this reason, to simplify the description of Earth's orientation in astronomy and geodesy, it is conventional to chart the positions of the stars in the sky according to right ascension and declination, which are based on a frame that follows the Earth's precession, and to keep track of Earth's rotation, through sidereal time, relative to this frame as well.
In particular, it refers to the gradual shift in the orientation of Earth's axis of rotation, which, like a wobbling top, traces out a pair of cones joined at their apices in a cycle of approximately 26, 000 years ( called a Great or Platonic Year in astrology ).
( In actuality, other effects also slowly change the shape and orientation of the Earth's orbit, and these, in combination with precession, create various cycles of differing periods ; see also Milankovitch cycles.
The magnitude of the Earth's tilt, as opposed to merely its orientation, also changes slowly over time, but this effect is not attributed directly to precession.
Hamal's orientation with relation to the Earth's orbit around the Sun gives it a certain importance not apparent from its modest brightness.
0.474 seconds.