Right now, the main
part of the magnetic field is declining quite rapidly.
Not exact matches
In addition, because
part of the inertia
of a particle is due to the electromagnetic
field around it, as you speed up such a particle the electric
field produces a
magnetic field, the changing
magnetic field produces a back EMF, and this whole reaction
of the
field produces a resistance to acceleration.
Although we know that the
magnetic field originates in different
parts of Earth and that each source generates magnetism
of different strengths, exactly how it is generated and why it changes is not fully understood.
China's second moon probe is parked at a stable spot in deep space, called a Lagrangian point, as
part of a new mission to study the sun and Earth's
magnetic field.
As
part of a
field called «archaeomagnetism,» geophysicists team up with archaeologists to study the past
magnetic field.
And in particularly in his latter
part of his career, I mean the stuff that he was doing for example on
magnetic mono poles still not verified, that's an absolutely beautiful piece
of science; fundamental today in the way that quantum, advanced quantum
field theory is done.
«The sensors can detect disturbances in the surrounding
magnetic field, including the
magnetic field above them, with a range extending several metres,» adds research assistant Haibin Gao who is working on the sensor technology as
part of Hartmann's team.
According to theory, these
fields can funnel
part of the star's energy back onto the surface, creating hot spots near the
magnetic poles.
When a CME reaches Earth, its embedded
magnetic fields can interact with Earth's natural
magnetic field — called the magnetosphere — sometimes compressing it or even causing
parts of it to realign.
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.
He had a hunch those swirls were
part of a bigger structure, and a computer simulation proved him right: In aggregate, the swirls could twist the sun's
magnetic field, causing it to launch a huge spinning funnel
of gas.
For example, in transcranial
magnetic stimulation, a
magnetic field is passed over the scalp above this
part of the brain; a similar study could explore whether this technique could be made more effective.
Mercedes Lopez - Morales, an astronomer at the Harvard - Smithsonian Center for Astrophysics, has modeled the possibilities
of magnetic fields around red dwarf planets, and a picture is gradually emerging: The planets likely form in the outer
parts of their solar systems and migrate in.
«We always knew the
magnetic field was important but we never quite knew how strong to dial it in in our models,» says theoretical astrophysicist Christopher Reynolds
of the University
of Maryland, College Park, who was not
part of the study.
That
part of Africa belongs to a region called the South Atlantic Anomaly — extending west beyond South America — that today has an unusually weak
magnetic field strength.
Some
of the
magnetic resonance scans were performed in Vienna (Centre
of Excellent, High -
Field MR, Department
of MR Physics, Head: Ewald Moser) and some as
part of an EU project (Institute
of Psychiatry, London, Head: Gunther Schumann).
Researchers have long known that migratory birds receive information about
magnetic fields from a
part of their upper beak called the magnetite receptor, which contains iron - based
magnetic crystals.
It will measure
magnetic fields and plasma particles as
part of a study
of the composition
of the Martian atmosphere.
If such a particle is placed in a
magnetic field whose strength varies from region to region, it will move toward the weakest or strongest
part of the
field, depending on the particle's orientation [see illustration on next page].
Part of the problem is that magnetic fields can pass through biological tissues without being altered, so the sensors could, in theory, be located in any part of the b
Part of the problem is that
magnetic fields can pass through biological tissues without being altered, so the sensors could, in theory, be located in any
part of the b
part of the body.
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.
As
part of the mission, Juno will investigate Jupiter's relationship with the Sun and the solar wind by studying its
magnetic field, magnetosphere and aurora.
A recent study detected the emergence
of small - scale
magnetic fields in the lower
part of the sun's corona that may act as precursors to a flare.
This interactive zone may be the most dynamic
part of the planet, directly affecting the earth's rotation and
magnetic field
The Sun may be playing a
part in the generation
of lightning strikes on Earth by temporarily «bending» the Earth's
magnetic field and allowing a shower
of energetic particles to enter the upper atmosphere.
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.
«The science from these recent observations is really interesting and what we've learned about the
magnetic field is just the first
part of it,» Catherine Johnson, a planetary scientist at the University
of British Columbia in Vancouver and lead author
of the study, said in a statement.
Another technique dubbed magnetoencephalography (MEG) maps
magnetic fields in the brain produced by electrical signals; a similar approach, transcranial
magnetic stimulation (TMS), selectively stimulates
parts of the brain and is already being used to treat severe depression, migraine headaches and other conditions.
The global
magnetic field appears to be curved in the southern
part of the main filament.
As a consequence, the directions
of polarization for stars in different
parts of the sky make it possible to plot the direction
of the
magnetic field in the Milky Way.
These kinks and twists in the
magnetic field develop because the sun spins more rapidly at the equator than at the higher latitudes and because the inner
parts of the sun rotate more quickly than the surface.
The vast majority
of the 100,000 stars observed to experience the flare events as
part of the study boast a
magnetic field significantly stronger than our Sun.
«The polarization
of the waves coming from the background quasar, combined with the fact that the waves producing the two lensed images traveled through different
parts of the intervening galaxy, allowed us to learn some important facts about the galaxy's
magnetic field,» said Sui Ann Mao, Minerva Research Group Leader for the Max Planck Institute for Radio Astronomy in Bonn, Germany.
Satellites have been mapping the upper
part of the Earth's
magnetic field by collecting data for three years and found some amazing features about...
This, scientists say, is potentially very good news, as we could use the barrier to protect Earth from extreme space weather resulting from events like coronal mass ejections — huge explosions on the sun, where plasmas and
magnetic field are ejected from its corona, the outermost
part of its atmosphere.
Dog MRI equipment generates a very powerful
magnetic field, resulting in detailed anatomic images
of whatever
part of a dog's body is being scanned.
This is in
part because the equipment runs as much as $ 1 million to buy and needs to be stored in a specially housed area to protect the rest
of a veterinary hospital from its strong
magnetic field.
Although I did not have the time to study all details
of the document, I noticed that already in the very first
part of this document an incorrect statement is given about the solar
magnetic field.
We show that the index commonly used for quantifying long - term changes in solar activity, the sunspot number, accounts for only one
part of solar activity (William: Closed
magnetic field) and using this index leads to the underestimation
of the role
of solar activity in the global warming in the recent decades.
Leave alone — no natural variability Add some GHG above — I'll leave that to AGWs (it will not make any difference, but let's be tolerant
of the CO2 nonsense) Now to the important
part: Stir for 5 min (interaction
of the solar and Earth's
magnetic field), the pot's Surface Temperature changes (SST - AMO) Leave alone for 5 min — the pot's ST slowly reverts back Result — Sun - Earth natural variability drives the AMO http://www.vukcevic.talktalk.net/GSC1.htm
I have in the past (1970s) had a small
part in reviving the
field of sun - weather - climate research, see e.g. — Solar
Magnetic Sector Structure: Relation to Circulation
of the Earth's Atmosphere Wilcox, John M.; Scherrer, Philip H.; Svalgaard, Leif; Roberts, Walter Orr; Olson, Roger H. Science, Volume 180, Issue 4082, pp. 185 - 186 — Influence
of Solar
Magnetic Sector Structure on Terrestrial Atmospheric Vorticity.
In the absence
of some large change in the short period
of the last two or six or eight or eighteen - hundred years in Earth's -LCB- orbit, core,
magnetic field, insolation, axial tilt, etc -RCB-, there's a simple explanation for any
part of the behavior that is actually due to anything other than noise et al..
Including what will be the effect
of having powerful electro -
magnetic fields so close to beaches, especially if sharks are attracted to such
fields as
part of their predatory nature?
Similarly when the molecule is hit by a
magnetic wave it will not reach its full kinetic and radiative potential until all its
parts are moving in such a way as to propagate a
field of disturbance equal to the constant
of the energy input over time.