Sentences with phrase «of the magnetic fields on»

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.

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.

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.

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.

Not exact matches

The company has developed a machine that uses electricity to print the magnetic equivalent of pixels on a surface — complex patterns of north and south polarity points — allowing precise control over the topology of the magnetic fields.

The fact is, the Earth's magnetic field has reversed thousands of times over the Earth's lifetime, with no apparent effect on it's rotation.

Basically, reversals are all about processes that are going on in the core not the rest of the Earth, which really doesn't care what the magnetic field looks like.Tawny as I say in my post, my theory» is that nothing particularly out of the ordinary is happening, with the die - offs or the magnetic field, whatever the buzz around these events.

But the Earth keeps right on rotating when the magnetic field goes through one of it's more random phases that's the primary reason why it eventually becomes dipolar (like a bar magnet) again, although sometimes with the opposite polarity.

That non-Markov machines exist is shown by a simple example: the magnetization of a piece of iron immersed in an oscillating magnetic field depends on the values of the external field in the past, as well as in the present.

The consequences of a CME imparting a huge induced charge into the earths magnetic field today would overload transformers and communication grids on a global scale.

Scientists had recently discovered that every 200,000 years, on average, churning in the hot liquid metal of Earth's outer core causes the planet's whole magnetic field to flip.

It worked like the nozzle on a garden hose, except his version was invisible, regulating the flow of ions with magnetic fields.

These features trace the corona's magnetic field, which guides coronal plasma to take on the shape of tubes and sheets.

«When we compared those predictions to MAVEN data on the directions of the Martian and solar wind magnetic fields, they were in very good agreement.»

«The Earth's magnetic field protects life on the surface from the full impact of these solar outbursts,» says John Foster, associate director of MIT's Haystack Observatory.

«I prefer to think that there is some aspect of the mechanism that we're completely missing that amplifies the effect of time - dependent magnetic fields on the radical pairs and makes them more sensitive to changes than our simulations predict.»

Miscarriage occurred in 10.4 percent of the women with the lowest measured exposure level (1st quartile) of magnetic field non-ionizing radiation on a typical day, and in 24.2 percent of the women with the higher measured exposure level (2nd, 3rd and 4th quartiles), a nearly three times higher relative risk.

«The radical - pair mechanism of magnetoreception is still just a hypothesis, and arguably the best evidence we have for it so far is the effect of time - dependent radiofrequency magnetic fields on the ability of migratory birds to detect the direction of the Earth's magnetic field,» says senior author Peter Hore, an Oxford biophysical chemist specializing in magnetic influences on chemical reactions.

Sitting on top of the liquid outer core, it may sink slightly, disturbing the flow of iron and ultimately affecting Earth's magnetic field.

Scientists have proposed that heat emanating outward from the planet's core may pass through an inner layer of superionic ice, and through convection, create vortices on the outer layer of ionic water that give rise to local magnetic fields.

Tarduno's new results are based on the record of magnetic field strength fixed within magnetite found within zircon crystals collected from the Jack Hills of Western Australia.

Nicolas Gillet of the University of Joseph Fourier in Grenoble, France, and colleagues, modelled fluid behaviour in the Earth's core based on measurements of fluctuations in the magnetic field.

The effect of gravitational forces on a planet's magnetic field has already been well documented for two of Jupiter's moons, Io and Europa, and for a number of exoplanets.

«A strong magnetic field provides a shield for the atmosphere,» said Tarduno, «This is important for the preservation of habitable conditions on Earth.»

Now, instruments on the other side of the probe will be pointed at the moon and be used to measure magnetic fields and particles above these fissures.

The ripples spreading out below the pulsar like waves on a lake show where streams of electrons and positrons, shooting away from the pulsar at nearly the speed of light, begin to bunch up along the pulsar's changing magnetic field.

Under most reaction conditions with most molecules, the Earth's magnetic field is far too weak — roughly 200 times feebler than a refrigerator magnet — to have any impact on the amount of products produced.

The signal travels between the wires because the magnetic field formed by the first wire — the transmitter — creates an electric field in space, which in turn creates a magnetic field, and so on, moving outward at the speed of light.

If you provide energy in the form of radio waves, these tiny magnets can switch orientation and give off a resonance frequency that changes predictably based on the strength of the magnetic field.

John Tarduno, a geophysicist at the University of Rochester and a leading expert on Earth's magnetic field, and his team of researchers say they believe the Earth's magnetic field is at least four billion years old.

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.

Professor Edward P. Furlani, PhD, in UB's Chemical and Biological Engineering and Electrical Engineering departments, said that Vader's process mimics drop - on - demand inkjet printing and is based on the principles of magnetohydrodynamics, i.e. the manipulation of conductive fluids using a magnetic field.

The thin cable containing the magnetic field sensors can be easily installed on perimeter fences of all kinds.

«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.

A research team in India has developed a set of numerical computations to shed light on this phenomenon, and present this week in Physics of Plasmas, from AIP Publishing, analysis examining the role of chaotic magnetic fields in potential heating mechanisms.

Here, by carrying out a series of simulations of stellar magnetic fields, Antoine Strugarek and colleagues show that the Sun's magnetic cycle depends on its rotation rate and luminosity.

«We now know that the lack of a protective magnetic field and the differing planetary rotation rates also play a role in ensuring that many of the atmospheric processes we observe on Earth occur at a much faster rate on Venus.

These simulations provide new and novel insight regarding the influence of chaotic magnetic field lines on the spontaneous development of current sheets, and hence potential places of particle acceleration.

The Sun's activity — including changes in the number of sunspots, levels of radiation and ejection of material - varies on an eleven - year cycle, driven by changes in its magnetic field.

According to the leading theory, a flare is set off when nearby magnetic fields of opposite polarity break and reconnect, creating a closed loop with two footprints on the solar surface.

The environmental changes in the last 20 years have seen increases in the human environment of petro - chemicals — air transport - quadrupling of motor vehicles, insecticides and rises in background electro - magnetic - field, and so on.»

On a larger scale, many black holes fire out huge jets of energetic matter, powered by magnetic fields.

On Earth, a strong magnetic field and a thick atmosphere help protect life from radiation blazing from the sun and the rest of the universe.

Earth's magnetic field bent these particles about 180 degree, from the day - side to the night - side of the Earth where it was detected as a burst by the GRAPES - 3 muon telescope around mid-night on 22 June 2015.

The limit on the number of such high - speed relic monopoles that could inhabit the Milky Way without sapping its magnetic field is called the «Parker bound».

For about a minute, running on half a hair dryer's worth of power, the orbiter - cum - probe beamed direct measures of the planet's atmosphere, along with final probes of its gravity and magnetic field, to mission control at the Jet Propulsion Laboratory (JPL) in Pasadena, California.

A magnet floats on the magnetic field of a superconductive material, the precursor state of the appropriately named strange metals.

«Magnetic fields are interesting for a variety of reasons,» said Prof. Dr. Volker Springel, professor and researcher at the Heidelberg Institute for Theoretical Studies and principal investigator on the project.

A: I'm working on using solid - state defects in diamonds as magnetic field sensors, with the goal of using them as little nanoscale MRI machines that can study the structure and dynamics of single biological molecules (e.g., proteins).

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.