Sentences with phrase «of magnetic fields»

[23]... [T] he evidence is that much of this equipment is commonly used in university science laboratories and in other settings involving the production of magnetic fields using electric currents through coiled wires.

As soon as the power is turned on, the interplay of magnetic fields lifts the train slightly off the track, hence the magnetic levitation.

The interplay of magnetic fields provides the propulsion.

For the work's presentation at SFMOMA, Kubisch compiled a sequence of recordings of magnetic fields from various sites, including a security room in the basement of the museum; nearby locations such as Yerba Buena Gardens, a parking garage on Natoma Street, and Epicenter, a city - run space devoted to seismic safety; the Hoover Dam in Nevada; a power plant in Finland; server rooms in Austria, Germany, and Hong Kong; a Louis Vuitton store in Paris; and the Laboratory for Antiquated Video Systems at ZKM Center for Art and Media in Karlsruhe, Germany.

Therefore both the stator and rotors are using coils from the same feed and reversing the polarity of the feed reverses the direction of the magnetic fields on both the stator coils and rotor coil - the result being that the motor will rotate in the same direction as before anyway.

There are 28 slides covering the definition of magnetic fields, methods of making an object magnetic, how to make a compass and how to make an electromagnet.

The achievement is giving them important new clues about a problem at the frontiers of cosmology — the nature and origin of the magnetic fields that play an important role in how galaxies develop over time.

To determine which process is at work, we need to go still farther back in time — to more distant galaxies — and make similar measurements of their magnetic fields,» she added.

The student will make extensive use of current - and next - generation telescope and computing facilities, including the ground - based Rapid Oscillations in the Solar Atmosphere (ROSA) instrument that has been designed in - house at QUB, to examine the coupling of magnetic fields from their photospheric footpoints, through to their outermost extremities in the solar corona.

Only polarization of Sgr A * light permits to constrain the geometry of the magnetic fields near the black hole event horizon and it is possibly the only way to find out what Sgr A * radio source really is.

In spite of its significance, measurement of magnetic fields is challenging.

As such, it may present new insights into the behavior and response of magnetic fields to the conditions in a flaring atmosphere.

Magnetism in graphene could lead to new types of nanoscale sensors of magnetic fields.

Among the open problems he studies are the effects of convective overshooting in high - mass stars and the impact of magnetic fields on the properties of low - mass stars.

A specialized camera on a telescope operated by U.K. astronomers from Liverpool has made the first measurement of magnetic fields in the afterglow of a gamma - ray burst (GRB).

«This breakthrough observation gives us the first measurement of magnetic fields in the afterglow of a GRB,» said Swift lead scientist Neil Gehrels, Swift lead scientist at NASA's Goddard Space Flight Center in Greenbelt, Md..

«The high resolution of IllustrisTNG combined with its sophisticated galaxy formation model allowed us to explore these questions of magnetic fields in more detail than with any previous cosmological simulations,» says Vogelsberger, one of the authors of the three papers published today in the Monthly Notices of the Royal Astronomical Society.

This finding opens the door to understanding the role of magnetic fields in some of the most powerful events in the universe.

In addition to the anisotropic expansion of I - fronts into a filament, B - fields are expected to introduce an additional anisotropic press... ▽ More The influence of magnetic fields (B - fields) in the formation and evolution of bipolar bubbles, due to the expanding ionization fronts (I - fronts) driven by the Hii regions that are formed and embedded in filamentary molecular clouds, has not been well - studied yet.

Abstract: The influence of magnetic fields (B - fields) in the formation and evolution of bipolar bubbles, due to the expanding ionization fronts (I - fronts) driven by the Hii regions that are formed and embedded in filamentary molecular clouds, has not been well - studied yet.

The slow rotation rate is probably attributable to the braking action of magnetic fields that thread through the core and its envelope.

The SKA will also investigate the connection between the formation of magnetic fields and the formation of structure in the early Universe, and we will obtain solid constraints on when and how the first magnetic fields in the Universe were generated.

This new finding implies that the retarding effect of magnetic fields in disk formation may not be as efficient as we thought before,» says Zhi - Yun Li at University of Virginia

By extending the coherence time of electron states to over half a second, a team of scientists from Berkeley Lab, UC Berkeley, and Harvard University has vastly improved the performance of one of the most potent possible sensors of magnetic fields on the nanoscale — a diamond defect no bigger than a pair of atoms, called a nitrogen vacancy (NV) center.

The team of scientists has made use of magnetic fields to control microparticle chains embedded in soft robots.

The spacecraft mapped Martian terrain with a laser altimeter, detected traces of magnetic fields with its magnetometer, and mapped at least 20 new impact craters between the time it started operations and the time it fell silent.

Due to the complexity of their magnetic fields, and the large tilt of their magnetic axes with respect to their rotation axes, we expect the solar wind interactions with the planetary fields to challenge our understanding of magnetic and plasma interactions.

He notes that such a model requires precise knowledge of gas velocities as well as the strength and tilt of magnetic fields in the penumbra, data the Swedish team hopes to obtain next year.

The team painstakingly measured the orientation of magnetic fields within the Cat's Paw.

The new work shows that materials hosting a type - II Weyl fermion have mixed behavior: While for some directions of magnetic fields the resistivity increases just like in normal metals, for other directions of the fields, the resistivity can decrease like in the Weyl semimetals, offering possible technological applications.

The level of activity of these magnetic fields is constantly shifting in a way that varies from one star to another.

Tiny devices that take advantage of a recently discovered physical effect called extraordinary magnetoresistance could be used in blazingly fast computer disk drives with huge capacities and in dozens of other applications involving the sensing of magnetic fields

The control and movement of magnetic fields in a material can be exploited for high performance in electronic applications.

Previous studies, led by Kenneth J. Lohmann of the University of North Carolina, had shown that hatchling loggerhead turtles can detect features of magnetic fields known as inclination angle and field intensity.

The effects of the magnetic fields can also be seen rippling through large clouds like a gust through a cornfield.

[4] Very little is known about the origin and characteristics of the magnetic fields that were present in our galaxy when it was young, so it is unclear whether they have grown stronger over time, or decayed.

Bismuth is a historically interesting element for scientists, as a number of important discoveries in the metal physics world were made while studying it, including important observations about the effect of magnetic fields on electrical conductivity.

Wang and his co-authors strung together a series of images which trace the formation of an S - shaped bundle of magnetic fields from which a set of loops peel off and grow upward into a multi-strand flux rope within a few minutes.

If two colliding regions of plasma have the same density, temperature and strength (but different orientation) of their magnetic fields, symmetrical reconnection begins.

A new instrument gave the team minute - by - minute updates on the strengths of magnetic fields in the spots.

That's because the current galactic environment is full of magnetic fields and turbulence, both of which greatly complicate the creation of accurate simulations.

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 detection of magnetic fields is carried out with the help of a so called nitrogen vacancy center (NV), located approximately 10 nanometers below the surface of the diamond tip.

Like the skyrmion itself, the scientists realized, the imitation magnetic field was knotted, and it matched the interlinked rings of magnetic fields proposed for ball lightning.

To find out how the turtles remain within the gyre, Ken Lohmann of the University of North Carolina at Chapel Hill and colleagues made hatchlings swim in the presence of magnetic fields that simulated locations off Portugal, by which the gyre passes.

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.

If the direction of the magnetic fields is rapidly switched back and forth (i.e., high frequency) then electrical currents only flow along the outer edge of the metal, which is where the biofilm is.

These new phenomena rely on the transport of thermal energy, in contrast to the conventional appication of magnetic fields, providing a new, and highly desireable way to manipulate magnetization at the nanoscale.

Eventually, even the complicated effects of magnetic fields may be included.

But researchers are just starting to create computer simulations of the strength of magnetic fields to understand how such weaker fields might arise.