Sentences with phrase «large magnetic fields in»

Specific sources of other cosmic rays can not be determined easily, because large magnetic fields in the galaxy scatter the rays in all directions.

In the electric Motor current flow in the stator induces a large magnetic field in that stator, and the reaction between the magnetic field causes the rotor to rotate.

Not exact matches

The International Thermonuclear Experimental Reactor (ITER), an experimental reactor currently being built in the south of France, will house the world's largest ever tokamak — a doughnut - shaped reactor that uses a powerful magnetic field to confine plasma.

On Earth, the brightest auroras (the high - altitude glows often called the northern and southern lights) are generated when electrons in outer space near Earth are accelerated by large electrical potentials, or voltages, along the lines in our planet's magnetic field and slam into gas molecules in the upper atmosphere above polar regions.

Now, scientists using the European Southern Observatory's (ESO) Very Large Telescope (VLT) say they may have observed this effect in the light coming from a neutron star — a cosmic object with a very strong magnetic field.

If, however, the gap size was 8 microns or larger, the researchers observed a phase transition, in which bacteria in every well synchronized, flowing in the same direction, like aligned electrons in a magnetic field.

Under these conditions, the liquid sodium is subjected to a strong magnetic field and to fast rotation, as would be expected in Earth's core, and undergoes both large - scale motion and random fluctuations.

Because they generate large magnetic fields they are an essential component in MRI scanners and levitating trains.

In lab experiments, scientists found that the longer it took the rock to cool, the larger the resulting crystals, allowing researchers to use crystal size to determine how long a rock was hot and its electrons susceptible to alignment by magnetic fields.

Ganymede is the largest moon in our solar system and the only moon with its own magnetic field.

The discovery, reported in tomorrow's issue of Nature, relies on a phenomenon called colossal magnetoresistance — a large drop in a material's electrical resistance in response to an applied magnetic field — that has previously been seen only at very low temperatures.

«Most surprising is that the blast wave was still strong enough to cause significant effects in the atmosphere of Saturn, which is nearly a billion miles from the sun and has a magnetic field much larger than Earth's,» says Ed Stone of Caltech, chief scientist of NASA's Voyager program.

An extended minimum occurs whenever the plasma moves quickly at the beginning of a cycle — preventing a large buildup of magnetic fields — but then slows down toward the end, delaying the onset of the next cycle, the team reports online today in Nature.

Now new research shows that these eruptions on the sun's surface not only send bursts of energetic particles into Earth's atmosphere causing disturbances in the magnetic field, but they may also significantly decrease the number of free electrons over large areas in the polar region of the ionosphere — the ionized part of the upper atmosphere.

But according to some models, larger magnetic fields, comparable to that estimated in the new study, may act in the opposite fashion, suppressing the infall of material and potentially placing a black hole on a starvation diet, Reynolds says.

A large network of neurons connected to the VTA glowed green, suggesting that the magnetic fields had effectively stimulated the circuit, the team reports online today in Science.

Together with Eric Blackman, an astrophysicist at the University of Rochester, and Michael Watkeys, a geologist at the University of KwaZulu - Natal in South Africa, Tarduno hypothesizes that the region — which is referred to as a Large Low Shear Velocity Province (LLSVP)-- affects the direction of the churning liquid iron that generates Earth's magnetic field.

As astronomers report online today in Nature, magnetic fields inside M33's six most massive giant molecular clouds — large concentrations of dense gas and dust that give birth to stars — line up with the spiral arms, suggesting the magnetic fields helped create the huge clouds and that they regulate how the clouds fragment to form new stars.

But observations last year hint that the protostar's stellar wind was flowing more quickly from the object's poles (relative speeds depicted in bluish ovoid in image above), and its magnetic field had become aligned with that of the larger cloud of gas and dust that surrounds it, the researchers report online today in Science.

Like Carrington, both were caused when a ball of hot, electrically charged gas from the sun slammed into Earth's magnetic field (artist's impression above), temporarily weakening it, creating worldwide aurorae and taking out all the power in Sweden's third - largest city in one case.

Physicists at the U.S. Department of Energy's Ames Laboratory compared similar materials and returned to a long - established rule of electron movement in their quest to explain the phenomenon of extremely large magnetoresistance (XMR), in which the application of a magnetic field to a material results in a remarkably large change in electrical resistance.

The amount of twisting observed in FRB 121102's radio bursts is among the largest ever measured in a radio source, leading the researchers to conclude that the bursts are passing through an extraordinarily strong magnetic field in a dense plasma.

The largest of these eruptions cause what is known as space weather — the radiation, energetic particles and magnetic field releases from the Sun powerful enough to cause severe effects in Earth's near environment, such as the disruption of communications, power lines and navigations systems.

ESA's probe would settle into orbit around Ganymede, the largest moon in the solar system and the only one known to make its own magnetic field.

«These larger crystals are easier to control using external magnetic fields, and they will not aggregate when those fields are removed, which will make them much more useful in practical applications, including drug delivery.»

Most large tokamaks create the plasma with solenoids — large magnetic coils that wind down the center of the vessels and inject the current that starts the plasma and completes the magnetic field that holds the superhot gas in place.

Rapid reversals of Earth's magnetic field 550 million years ago destroyed a large part of the ozone layer and let in a flood of ultraviolet radiation, devastating the unusual creatures of the so - called Ediacaran Period and triggering an evolutionary flight from light that led to the Cambrian explosion of animal groups.

The principal result they obtained was an inverse relation between the star formation rate in a given molecular cloud and the magnetic field within it: the larger the field the slower is the star formation rate.

They combined observations in the visible and the near infrared from the Hubble Space Telescope with radio observations from the Very Large Array and the Submillimeter Array to explore the effect of the turbulence, stellar radiation, and magnetic field on massive star formation in the galaxy's nuclear ring.

Not only is it the largest planet in the Sun's family, it also presides over a miniature solar system of 53 known moons, a system of rings and an immense and powerful magnetic field.

These amazing outflows traverse distances larger than galaxies» 35 and are powered by the gigantic magnetic field generated by the spinning disk of matter spiraling in toward the event horizon.

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)

Examples include making sure that the spacecraft has no stray magnetic fields that are large enough to keep us from accurately measuring the Martian and interplanetary fields, and making sure that the pointing of the mass spectrometer is sufficiently precise and accurate that the molecules will stream straight in through the inlet port when we're making measurements.

NASA's Galileo spacecraft did a fly - by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.

This governs the nature of the dynamo that generates magnetic field in the stellar interior and determines the observed large - scale magnetic structure.

Geoscientists can spend a large part of their time in the field, identifying and examining rocks, studying information collected by remote sensing instruments in satellites, conducting geological surveys, constructing field maps, and using instruments to measure Earth's gravity and magnetic field.

It also helps us understand how the large magnetic loops in the Sun's outer atmosphere, the corona, form out of the highly intermittent magnetic fields on the Sun's surface.

This is in line with more recent studies that suggest that misalignment of magnetic field and rotation axes or turbulence may enhance early disk formation, producing disks of 100 times the Earth - Sun radius or larger.

Re 122 — also, if a magnetic pole where nearby, small movements could cause large directional changes in the horizontal component of the magnetic field, although the horizontal component should be quite small in that case.

Scientists have long suspected that the network of cracks in Europa's ice sheet could indicate a large volume of water underneath, and recent analysis of magnetic field data from the Galileo probe seems to confirm there is a salty ocean down there.

This is a larger solar influence (variation depends on solar magnetic field) than the variation in solar output intensity.

The sun is currently in a spotless state, the solar large scale magnetic field is dissipating.

If it does have a large magnetic field, not fed particles by any solar wind from a companion, or surrounding nebula, it could be relatively empty of particles, and have low radiation levels in spite of the field.

During her PhD at McMaster University, she grew large single crystals of rare earth titanate pyrochlores, appropriate for neutron scattering measurements, and carried out sophisticated time - of - flight neutron scattering measurements at dilution refrigerator temperatures, and in magnetic fields up to 8 T.

Although it is well established that the Sun's magnetic field is responsible for the supply of energy to the atmosphere, exactly how this magnetic energy is converted into thermal energy is still not understood in detail, as models struggle to simultaneously encompass the very disparate temporal and spatial scales on which the heating has to occur, in different structures, with a wide variety of characteristics (e.g. open versus closed structures, short quiet - sun loops versus hot active - region loops and large - scale interconnecting loops).

Once Ulysses was in its scheduled orbit, it began observing the solar wind and magnetic field strength at high solar latitudes, finding that the solar wind from high latitudes was moving at about 750 km / s (slower than expected), and that there were large magnetic waves emerging from high latitudes which scattered galactic cosmic rays.

In a recent study published in the journal Nature Communications, Shapiro and his colleagues introduced a method to correlate magnetic field patterns in tissue, which occur on micrometer scales, with the larger, millimeter - scale features of MRI imageIn a recent study published in the journal Nature Communications, Shapiro and his colleagues introduced a method to correlate magnetic field patterns in tissue, which occur on micrometer scales, with the larger, millimeter - scale features of MRI imagein the journal Nature Communications, Shapiro and his colleagues introduced a method to correlate magnetic field patterns in tissue, which occur on micrometer scales, with the larger, millimeter - scale features of MRI imagein tissue, which occur on micrometer scales, with the larger, millimeter - scale features of MRI images.

Friedman later work found that the rabbits all had large amounts of cortisol in their blood and in their brain caused by these pulsed magnetic fields.

Large changes in cosmic rays are documented in response to magnetic - field variations (the Laschamp event of about 40,000 years ago is especially prominent) with no corresponding change in climate, so any cosmic - ray influence on the climate must be very small (a weak correlation can be obscured by noise; a strong control is almost always visible «by eye,» and clearly is absent).

«Just how large this role is, must still be investigated, since, according to our latest knowledge on the variations of the solar magnetic field, the significant increase in the Earthâ??