Until recently, it was not clear what prevented the delicate filaments from being destroyed by competing gravitational forces, but Hubble Space Telescope images suggest they are supported
by magnetic fields generated near the galaxy's central black hole.
Not exact matches
Thanks to Bob for keeping an eye on things.Curt the earth's
magnetic field is
generated by convection in the outer core.
The earth has North and South poles because of the «
Magnetic Field»
generated by the its metallic molten core.
Other effects, such as light scattering from cosmic dust and the synchrotron radiation
generated by electrons moving around galactic
magnetic fields within our own galaxy, can also produce these polarisation twists.
Magnetic fields generated by Earth's core leave time stamps on pottery.
Magnetoencelphalography, or MEG, is a technique that measures the tiny
magnetic fields generated by brain activity.
Two days later, the torrid gas cloud crashed against Earth's magnetosphere — the
magnetic field generated by the planet's spinning molten iron core that helps deflect the solar wind and more potent solar jetsam.
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.
Scientists don't fully understand what's driving Jupiter's strongest auroras, but data gathered
by the orbiting Juno spacecraft hint that the electrons
generating Jupiter's polar glows may be accelerated
by turbulent waves in the planet's
magnetic field — a process somewhat akin to surfers being driven shoreward ahead of breaking ocean waves, the researchers report today in Nature.
Such cycling, and the protective
magnetic field generated by the core, keep our planet at the perfect temperature for life.
Thanks to Swarm's precise measurements along with those from Champ — a mission that ended in 2010 after measuring Earth's gravity and
magnetic fields for more than 10 years — scientists have not only been able to find the
magnetic field generated by ocean tides but, remarkably, they have used this new information to image the electrical nature of Earth's upper mantle 250 km below the ocean floor.
«It's not like the magnetotail found at Venus, a planet with no
magnetic field of its own, nor is it like Earth's, which is surrounded
by its own internally
generated magnetic field.
For this theory to work, the beams released
by black holes would have to have strong, self -
generated magnetic fields and the rotation of particles around the
fields would then give off powerful bursts of gamma ray radiation.
In bird eyes, suitable radicals are believed to be
generated within cryptochrome, a light - absorbing protein that produces an as - yet - unidentified signaling molecule in a quantity determined
by the
field direction, resulting in an avian
magnetic compass.
Life thrives on this planet partly because it is protected
by the powerful
magnetic field generated in the outer core.
The
magnetic field is
generated by swirling, liquid iron in Earth's outer core.
That model assumes that relativistic jets store energy primarily in the form of hot matter (plasma) and less in the form of
magnetic fields generated by shock waves at the front of the jets.
Ever since scientists
generated the first global model of Earth's
magnetic field nearly 180 years ago, its strength has decreased
by some 10 percent.
The Earth's
magnetic field is
generated by the flow of liquid iron, an electrical conductor, in the Earth's outer core, between 3000 and 5000 kilometres beneath the surface.
Inserting
magnetic droplets at different locations in the tissue, and
generating forces
by applying a
magnetic field to the droplets, the researchers showed that the tissue behaves like a fluid while growing, with similar mechanical characteristics as thick honey.
Samples of isolated magnetosome chains were analysed at BESSY II to investigate the relative orientation between the chain's direction and the
magnetic field generated by the magnetosomes.
The movement of iron, which can carry a charge,
generates a strong
magnetic field that can protect a planet's atmosphere from being ravaged
by solar wind (SN Online: 8/18/17).
The choice to look at insulin production was driven
by the equipment they used to
generate the radio waves and
magnetic fields.
An array of wire coils
generates a
magnetic field and when a phone disrupts that
field, MagMIMO senses it and focuses on the phone
by creating a slightly different
field with each coil.
Arefiev co-authored the study, «Enhanced multi-MeV photon emission
by a laser - driven electron beam in a self -
generated magnetic field,» published May 2016 in the journal Physical Review Letters.
The shock waves created
by a supernova explosion, astronomers theorized, could
generate enormous
magnetic fields capable of accelerating electrons, protons, and other ions to nearly the speed of light.
They monitored how superconducting balls respond to gravity while trapped floating in ultrastable
magnetic fields generated by superconducting coils.
We present a third, distinct bonding mechanism: perpendicular paramagnetic bonding,
generated by the stabilization of antibonding orbitals in their perpendicular orientation relative to an external
magnetic field.
Researchers in Spain have discovered that if lead atoms are intercalated on a graphene sheet, a powerful
magnetic field is
generated by the interaction of the electrons» spin with their orbital movement.
The rapid rotation created
by mass transfer between the two stars appears necessary to
generate the ultra-strong
magnetic field and then a second mass transfer phase allows the magnetar - to - be to slim down sufficiently so that it does not collapse into a black hole at the moment of its death.
The bright bluish areas to the left and right are the points closest to and farthest from Jupiter; electricity
generated by Jupiter's
magnetic field arcs to Io's surface, passes through the moon, and shoots out the other end.
Wireless power transfer works
by having a transmitter coil
generate a
magnetic field; a receiver coil then draws energy from that
magnetic field.
The gamma rays could be
generated when charged particles are accelerated
by strong
magnetic fields around the stellar remnant.
But Mercury has a weak
magnetic field — which is presumably
generated, like Earth's,
by the circulation of molten, electrically conducting metal at the planet's core.
«Also, the
magnetic field of the Earth is
generated by flow in the liquid core, so the findings of Rowley and co-authors are likely to have implications for our understanding of the existence, character and amplitude of the Earth's
magnetic field and its evolution through geological time,» Braun added.
Either wobbly rotation produced
by Earth's gravitational tug or asteroids smacking into the lunar surface may have triggered enough turbulence in the moon's molten core to
generate a long - lasting
magnetic field, report two teams of scientists in the Nov. 10 Nature.
The
magnetic field, which may be
generated by the planet's core, is connected to the winds because of high temperatures stripping electrons from atmospheric atoms of lithium, sodium and potassium, making them positively charged.
A combination of iron - oxide nanoparticles and an alternating
magnetic field, which together
generate heat, have activated an immune system response to tumors in mice according to an accepted manuscript
by Dartmouth - Hitchcock Norris Cotton Center researchers in the journal Nanomedicine: Nanotechnology, Biology and Medicine released online on February 24, 2014.
They did it
by penning the plasma in with
magnetic fields generated by electrodes and magnets at each end of the long tube.
To see whether these are
generated by the same process as happens on the sun — the breaking and reconnection of
magnetic fields (pictured above)-- astronomers studied light from 100,000 stars using China's Guo Shouiing Telescope.
The researchers ascribe this effect to the interaction between the electrons carrying electricity and the
magnetic field which is
generated by the surrounding atomic nuclei in the organic molecules.
These defects «pin» in place, or trap, the microscopic
magnetic vortices that form when the superconductor is placed in a strong
magnetic field, such as those
generated by magnets in
magnetic resonance imaging (MRI) machines.
The calculations in those studies said that the resistivity of the molten metal in Earth's core, which is
generated by this electron scattering process, would be too low, and thus the thermal conductivity too high, to allow thermal convection to
generate the
magnetic field.
These proposed devices, like their predecessors, aim to cancel gravity
by wrapping an object in superconducting coils to
generate a
magnetic field so strong that it warps space.
The aim was to test the prospects of
generating electricity
by dragging the cable through the Earth's
magnetic field.
These devices save power
by generating a
magnetic field in each element of the picture, sustaining the picture even when the current is turned off.
The most vital components of cognition, Freeman believes, are the electrical and
magnetic fields,
generated by synaptic currents, that constantly ripple through the brain.
He suggests that the acceleration of particles in the solar wind — essentially a surface phenomenon — is determined
by the strong «dynamo»
magnetic field generated deep down in the Sun.
As was the case with the Pioneer Venus data, he says, these signals might instead be
generated by processes involving the charged particles and
magnetic fields draped around the planet.
They collected images of the
magnetic field generated by one of the stars in the Algol system, located about 93 light - years away.