Sentences with phrase «for precession»

The robustness of the results for precession across testing configuration lead us to confidently conclude that significant precession band variability is present in the ODP 1218 δ18O record.

But there's also a stronger response due to truly stronger periodic fluctuations recently, especially for the precession frequencies and the unidentified 100,000 - year fluctuation.

However 65S in January has a similar radiation profile to 65N in July except for the precession of the axis component which has the effect of introducing a circa 10,000 year phase difference.

«NuSTAR confirmed the wobbling of the iron line, and additionally saw a feature in the spectrum called a «reflection hump» that added evidence for precession.»

Not exact matches

The resulting theory, though founded on quite different principles and developed in an independent fashion from Einstein's theory, nevertheless gives predictions that are identical to the latter's, within observable limits, for each of the four classic tests of gravitational theories (i.e., precession of the perihelion of Mercury, redshift of light emitted by a massive body, the bending of light - beams in a strong gravitational field, and the apparent slowing of the speed of light propagation near massive bodies).

The time for the orbit to return to its initial condition is known as a precession cycle.

Although the gravitational tugs of other planets account for most of Mercury's precession, they don't account for all of it.

g (acceleration due to gravity) G (gravitational constant) G star G1.9 +0.3 gabbro Gabor, Dennis (1900 — 1979) Gabriel's Horn Gacrux (Gamma Crucis) gadolinium Gagarin, Yuri Alexeyevich (1934 — 1968) Gagarin Cosmonaut Training Center GAIA Gaia Hypothesis galactic anticenter galactic bulge galactic center Galactic Club galactic coordinates galactic disk galactic empire galactic equator galactic habitable zone galactic halo galactic magnetic field galactic noise galactic plane galactic rotation galactose Galatea GALAXIES galaxy galaxy cannibalism galaxy classification galaxy formation galaxy interaction galaxy merger Galaxy, The Galaxy satellite series Gale Crater Galen (c. AD 129 — c. 216) galena GALEX (Galaxy Evolution Explorer) Galilean satellites Galilean telescope Galileo (Galilei, Galileo)(1564 — 1642) Galileo (spacecraft) Galileo Europa Mission (GEM) Galileo satellite navigation system gall gall bladder Galle, Johann Gottfried (1812 — 1910) gallic acid gallium gallon gallstone Galois, Évariste (1811 — 1832) Galois theory Galton, Francis (1822 — 1911) Galvani, Luigi (1737 — 1798) galvanizing galvanometer game game theory GAMES AND PUZZLES gamete gametophyte Gamma (Soviet orbiting telescope) Gamma Cassiopeiae Gamma Cassiopeiae star gamma function gamma globulin gamma rays Gamma Velorum gamma - ray burst gamma - ray satellites Gamow, George (1904 — 1968) ganglion gangrene Ganswindt, Hermann (1856 — 1934) Ganymede «garbage theory», of the origin of life Gardner, Martin (1914 — 2010) Garneau, Marc (1949 ---RRB- garnet Garnet Star (Mu Cephei) Garnet Star Nebula (IC 1396) garnierite Garriott, Owen K. (1930 ---RRB- Garuda gas gas chromatography gas constant gas giant gas laws gas - bounded nebula gaseous nebula gaseous propellant gaseous - propellant rocket engine gasoline Gaspra (minor planet 951) Gassendi, Pierre (1592 — 1655) gastric juice gastrin gastrocnemius gastroenteritis gastrointestinal tract gastropod gastrulation Gatewood, George D. (1940 ---RRB- Gauer - Henry reflex gauge boson gauge theory gauss (unit) Gauss, Carl Friedrich (1777 — 1855) Gaussian distribution Gay - Lussac, Joseph Louis (1778 — 1850) GCOM (Global Change Observing Mission) Geber (c. 720 — 815) gegenschein Geiger, Hans Wilhelm (1882 — 1945) Geiger - Müller counter Giessler tube gel gelatin Gelfond's theorem Gell - Mann, Murray (1929 ---RRB- GEM «gemination,» of martian canals Geminga Gemini (constellation) Gemini Observatory Gemini Project Gemini - Titan II gemstone gene gene expression gene mapping gene pool gene therapy gene transfer General Catalogue of Variable Stars (GCVS) general precession general theory of relativity generation ship generator Genesis (inflatable orbiting module) Genesis (sample return probe) genetic code genetic counseling genetic disorder genetic drift genetic engineering genetic marker genetic material genetic pool genetic recombination genetics GENETICS AND HEREDITY Geneva Extrasolar Planet Search Program genome genome, interstellar transmission of genotype gentian violet genus geoboard geode geodesic geodesy geodesy satellites geodetic precession Geographos (minor planet 1620) geography GEOGRAPHY Geo - IK geologic time geology GEOLOGY AND PLANETARY SCIENCE geomagnetic field geomagnetic storm geometric mean geometric sequence geometry GEOMETRY geometry puzzles geophysics GEOS (Geodetic Earth Orbiting Satellite) Geosat geostationary orbit geosynchronous orbit geosynchronous / geostationary transfer orbit (GTO) geosyncline Geotail (satellite) geotropism germ germ cells Germain, Sophie (1776 — 1831) German Rocket Society germanium germination Gesner, Konrad von (1516 — 1565) gestation Get Off the Earth puzzle Gettier problem geyser g - force GFO (Geosat Follow - On) GFZ - 1 (GeoForschungsZentrum) ghost crater Ghost Head Nebula (NGC 2080) ghost image Ghost of Jupiter (NGC 3242) Giacconi, Riccardo (1931 ---RRB- Giacobini - Zinner, Comet (Comet 21P /) Giaever, Ivar (1929 ---RRB- giant branch Giant Magellan Telescope giant molecular cloud giant planet giant star Giant's Causeway Giauque, William Francis (1895 — 1982) gibberellins Gibbs, Josiah Willard (1839 — 1903) Gibbs free energy Gibson, Edward G. (1936 ---RRB- Gilbert, William (1544 — 1603) gilbert (unit) Gilbreath's conjecture gilding gill gill (unit) Gilruth, Robert R. (1913 — 2000) gilsonite gimbal Ginga ginkgo Giotto (ESA Halley probe) GIRD (Gruppa Isutcheniya Reaktivnovo Dvisheniya) girder glacial drift glacial groove glacier gland Glaser, Donald Arthur (1926 — 2013) Glashow, Sheldon (1932 ---RRB- glass GLAST (Gamma - ray Large Area Space Telescope) Glauber, Johann Rudolf (1607 — 1670) glaucoma glauconite Glenn, John Herschel, Jr. (1921 ---RRB- Glenn Research Center Glennan, T (homas) Keith (1905 — 1995) glenoid cavity glia glial cell glider Gliese 229B Gliese 581 Gliese 67 (HD 10307, HIP 7918) Gliese 710 (HD 168442, HIP 89825) Gliese 86 Gliese 876 Gliese Catalogue glioma glissette glitch Global Astrometric Interferometer for Astrophysics (GAIA) Global Oscillation Network Group (GONG) Globalstar globe Globigerina globular cluster globular proteins globule globulin globus pallidus GLOMR (Global Low Orbiting Message Relay) GLONASS (Global Navigation Satellite System) glossopharyngeal nerve Gloster E. 28/39 glottis glow - worm glucagon glucocorticoid glucose glucoside gluon Glushko, Valentin Petrovitch (1908 — 1989) glutamic acid glutamine gluten gluteus maximus glycerol glycine glycogen glycol glycolysis glycoprotein glycosidic bond glycosuria glyoxysome GMS (Geosynchronous Meteorological Satellite) GMT (Greenwich Mean Time) Gnathostomata gneiss Go Go, No - go goblet cell GOCE (Gravity field and steady - state Ocean Circulation Explorer) God Goddard, Robert Hutchings (1882 — 1945) Goddard Institute for Space Studies Goddard Space Flight Center Gödel, Kurt (1906 — 1978) Gödel universe Godwin, Francis (1562 — 1633) GOES (Geostationary Operational Environmental Satellite) goethite goiter gold Gold, Thomas (1920 — 2004) Goldbach conjecture golden ratio (phi) Goldin, Daniel Saul (1940 ---RRB- gold - leaf electroscope Goldstone Tracking Facility Golgi, Camillo (1844 — 1926) Golgi apparatus Golomb, Solomon W. (1932 — 2016) golygon GOMS (Geostationary Operational Meteorological Satellite) gonad gonadotrophin - releasing hormone gonadotrophins Gondwanaland Gonets goniatite goniometer gonorrhea Goodricke, John (1764 — 1786) googol Gordian Knot Gordon, Richard Francis, Jr. (1929 — 2017) Gore, John Ellard (1845 — 1910) gorge gorilla Gorizont Gott loop Goudsmit, Samuel Abraham (1902 — 1978) Gould, Benjamin Apthorp (1824 — 1896) Gould, Stephen Jay (1941 — 2002) Gould Belt gout governor GPS (Global Positioning System) Graaf, Regnier de (1641 — 1673) Graafian follicle GRAB graben GRACE (Gravity Recovery and Climate Experiment) graceful graph gradient Graham, Ronald (1935 ---RRB- Graham, Thomas (1805 — 1869) Graham's law of diffusion Graham's number GRAIL (Gravity Recovery and Interior Laboratory) grain (cereal) grain (unit) gram gram - atom Gramme, Zénobe Théophile (1826 — 1901) gramophone Gram's stain Gran Telescopio Canarias (GTC) Granat Grand Tour grand unified theory (GUT) Grandfather Paradox Granit, Ragnar Arthur (1900 — 1991) granite granulation granule granulocyte graph graph theory graphene graphite GRAPHS AND GRAPH THEORY graptolite grass grassland gravel graveyard orbit gravimeter gravimetric analysis Gravitational Biology Facility gravitational collapse gravitational constant (G) gravitational instability gravitational lens gravitational life gravitational lock gravitational microlensing GRAVITATIONAL PHYSICS gravitational slingshot effect gravitational waves graviton gravity gravity gradient gravity gradient stabilization Gravity Probe A Gravity Probe B gravity - assist gray (Gy) gray goo gray matter grazing - incidence telescope Great Annihilator Great Attractor great circle Great Comets Great Hercules Cluster (M13, NGC 6205) Great Monad Great Observatories Great Red Spot Great Rift (in Milky Way) Great Rift Valley Great Square of Pegasus Great Wall greater omentum greatest elongation Green, George (1793 — 1841) Green, Nathaniel E. Green, Thomas Hill (1836 — 1882) green algae Green Bank Green Bank conference (1961) Green Bank Telescope green flash greenhouse effect greenhouse gases Green's theorem Greg, Percy (1836 — 1889) Gregorian calendar Grelling's paradox Griffith, George (1857 — 1906) Griffith Observatory Grignard, François Auguste Victor (1871 — 1935) Grignard reagent grike Grimaldi, Francesco Maria (1618 — 1663) Grissom, Virgil (1926 — 1967) grit gritstone Groom Lake Groombridge 34 Groombridge Catalogue gross ground, electrical ground state ground - track group group theory GROUPS AND GROUP THEORY growing season growth growth hormone growth hormone - releasing hormone growth plate Grudge, Project Gruithuisen, Franz von Paula (1774 — 1852) Grus (constellation) Grus Quartet (NGC 7552, NGC 7582, NGC 7590, and NGC 7599) GSLV (Geosynchronous Satellite Launch Vehicle) g - suit G - type asteroid Guericke, Otto von (1602 — 1686) guanine Guiana Space Centre guidance, inertial Guide Star Catalog (GSC) guided missile guided missiles, postwar development Guillaume, Charles Édouard (1861 — 1938) Gulf Stream (ocean current) Gulfstream (jet plane) Gullstrand, Allvar (1862 — 1930) gum Gum Nebula gun metal gunpowder Gurwin Gusev Crater gut Gutenberg, Johann (c. 1400 — 1468) Guy, Richard Kenneth (1916 ---RRB- guyot Guzman Prize gymnosperm gynecology gynoecium gypsum gyrocompass gyrofrequency gyropilot gyroscope gyrostabilizer Gyulbudagian's Nebula (HH215)

We interpret this periodicity as a property of the accretion disc, most likely a long - term precession, where the disc edge structure and X-ray irradiation is responsible for the hard X-ray dips and modulation, although we discuss other possible explanations, including Lense - Thirring precession in the inner disc region and spectral state variations.

Such precession indicates a very high mass ratio LMXB, which even for a 10 solar mass BH requires a brown dwarf donor (~ 0.02 solar masses), making Swift J1753.5 - 0127 a possible analogue of millisecond X-ray pulsars.We compare the properties of Swift J1753.5 - 0127 with other recently discovered short - period transients, which are now forming a separate population of high latitude BH transients located in the galactic halo.

The alignment of obliquity and eccentricity due to precession is a much stronger effect than for the Earth, leading to «great» summers and winters on time scales of tens of thousands of years (the precessional period is 170,000 years).

This is the first time such a young pulsar has disappeared through precession,» Joeri van Leeuwen, an astrophysicist at The Netherlands Institute for Radio Astronomy and University of Amsterdam, who led the study, said in the statement.

Sailors once used the crux to find their way, and the ancient Greeks charted it before it sank below their horizon in the precession of the equinoxes, but credit for its discovery is given to the Brazilians, who dubbed it «Las Guardas.»

For one, the relative roles of eccentricity, obliquity, and precession in controlling glacial onsets / terminations are still debated.

For the 150 year model what is modelled for short term orbital fluctuations: eg daily rotation, monthly moon gravity effects on precession etc, yearly elliptical orbit effects for an assumed fixed elliptical orbit, yearly tilt and precession impacts eFor the 150 year model what is modelled for short term orbital fluctuations: eg daily rotation, monthly moon gravity effects on precession etc, yearly elliptical orbit effects for an assumed fixed elliptical orbit, yearly tilt and precession impacts efor short term orbital fluctuations: eg daily rotation, monthly moon gravity effects on precession etc, yearly elliptical orbit effects for an assumed fixed elliptical orbit, yearly tilt and precession impacts efor an assumed fixed elliptical orbit, yearly tilt and precession impacts etc?

The alignment of obliquity and eccentricity due to precession is a much stronger effect than for the Earth, leading to «great» summers and winters on time scales of tens of thousands of years (the precessional period is 170,000 years).

For the ice age — interglacial variations of the last few million years, a transition occured within the last million years where a 100,000 year timescale seemed to become dominant, whereas previously the variations followed the obliquity (~ 40,000 years) and precession cycles.

We can do this for obliquity and precession themselves, to gauge the changing strength of the driving influence, and to the LR04 stack to gauge the strength of the glacial response.

For example, average insolation on the 21st day of June at 65 - N has 80 % of its variance at the precession periods (1/21 ky + / - 1/100 ky).

Be that as it may the planet is going over the hump in axial precession moving towards the favorable stage for glacial advance.

VP, BTW it was Duncan Steel who made the claim of the apsidal precession could account for pole temperature differences.

Tilt and precession account for a lot of the slow back and forth of the glaciers in between the major meltoffs, which occur every 100,000 years or so.

For the life of me I just can not fathom why this rather normal, half - precession cycle old interglacial will not continue in perpetuity.

According to this theory, changes in the shape of Earth's orbit around the sun (eccentricity), variations in Earth's axial tilt (obliquity), and the tendency for Earth to «wobble» with respect to the direction of its rotational axis (precession) affect climate.

That is inconsistent with his current account, based on which natural warming due precession of the perihelion relative to the equinox should guaranttee that for quite some time.

For a completely carbon - dioxide - free reconstruction of the Vostok temperatures since 450 000 years refer to O. G. Sorokhtin (references on card n ° 7) chapter 4.4 pp. 180 - 190 Precession Cycles and the Earth Climate: it explains in detail and computes the quick de-glaciations observed by G.Roe and by Lisiecki & Raymo, with all the «saw - teeth».

«The precession of perihelion therefore is causing not only the nature of the seasons to alter, through the intensity of the sunlight arriving at the Earth changing for corresponding times of year, but also the lengths of the seasons are varying for the same reason.

For precisely the same core reason (apsidal precession) the opposite occurs in the southern hemisphere: less insolation at far southern latitudes, sea ice melting delayed, albedo increasing, less energy absorbed: growing sea ice: the ice albedo feedback effect acting negatively.

For example precession has been linked to the rise and fall of the African rift valley lakes and so may have even influenced the evolution of our ancestors.

tallbloke says: August 7, 2011 at 2:15 pm If this guy has found the missing 40 ″ / cy that le Verier didn't account for within the Newtonian framework then both Newton and Einstein can accurately determine the precession of the Perihelion of Mercury.

The magnetic force coordinates the precessions of protons in hemoglobin and other bodily stuffs to make them emit radio signals strong enough for the equipment to respond to.

The LR04 age model establishes that MIS 11 spans two precession cycles, with 18O values below 3.6 o / oo for 20 kyr, from 398 - 418 ka.

For instance the number of Earth days in one degree of the Precession of the Equinox, is equal to the total number of years in the whole precessionary cycle.

The eccentricity, obliquity and precession variations in Milankovitch's model are said to have accounted for, respectively, 50 %, 25 % and 10 % of temperature change.

He doesn't identify eccentricity as such in the title of the paper, but it is there in his orbital forcing model, as the amplitude modulation of precession, and needed for his model to work.

Given that current low orbital eccentricity will persist over the next tens of thousand years, the effects of precession are minimised, and extremely cold northern summer orbital configurations like that of the last glacial initiation at 116 ka will not take place for at least 30 kyr (Box 6.1).

The real reasons for climate changes are uneven solar radiation, terrestrial precession (that is, axis gyration), instability of oceanic currents, regular salinity fluctuations of the Arctic Ocean surface waters, etc..