Sentences with phrase «bar magnet»

Because of a quantum property called spin, electrons attached to those chains act like tiny bar magnets.

The question is whether pairs of electrons act like regular bar magnets in which the opposite poles attract one another.

In a magnetic material, such as iron, each atom acts like a tiny bar magnet with its own north and south poles.

As a result, these atoms behave like little bar magnets.

In a magnetic material, those internal bar magnets are aligned.

The diagram represents the «atomic bar magnets» of each magnetic atom by means of a small coloured arrow.

To be magnetic a molecule has to have isolated electrons, which act like tiny bar magnets.

Imagine that each electron in a solid has an internal bar magnet, a tiny compass of sorts.

Internally, the tiny magnetic components in spin ices arrange themselves head to tail in strings, like chains of bar magnets stretching across a table in different directions.

Internally, the tiny magnetic components arrange themselves head to tail in strings, like chains of bar magnets stretching across a table in different directions.

However, breaches can occur when magnetic fields embedded in the solar wind clash with those in the magnetosphere, just as two oppositely aligned bar magnets repel each other.

Did you know that the Earth acts like a giant bar magnet creating a magnetic field?

MRIs work by tapping into an astonishing phenomenon: When placed in a powerful magnetic field, the hydrogen atoms in water molecules behave like small bar magnets.

Unlike graphene, the team's material exhibits traditional magnetism, or ferromagnetism, meaning the electrons align in a parallel arrangement like the north and south poles of a typical bar magnet.

Los Alamos alone houses eight magnets capable of operating at 50 tesla or more (a regular bar magnet generating about.01 tesla), including the 100 - tesla multiple shot magnet that took ten years to create.

The geomagnetic poles are almost an artifact of reducing Earth's complex and varied magnetic field to that of a simple bar magnet, or dipole.

Each muon is also magnetized like a miniature bar magnet.

Magnetic order is a common phenomenon in three - dimensional materials, such as ferromagnetic order in iron bar magnets, where the magnetic moments on all iron atoms point in the same direction.

In a traditional bar magnet (right), the magnetic field juts out from the north pole and bends toward the south pole.

Since we can not directly observe magnetic fields, we use the super-heated gases present in the Sun's atmosphere to trace out the magnetic field lines, similar to the role of iron filings in the aforementioned bar magnet experiment.

Polarized xenon — with the atoms» nuclear «spins» aligned like bar magnets in the same direction — can be dissolved in liquids and used to detect the presence of certain molecules.

If imbued with a quantum - mechanical property known as spin, individual atoms act as tiny bar magnets with north and south poles.

The nanoclusters — about 20,000 per square micrometer — act like tiny bar magnets with «spins» that can be oriented either randomly or in a coordinated manner.

The «traveling social worker» electron establishes «a design principle that could be used to create many new magnetic molecules that behave as little bar magnets,» Berry says.

In the magnetic vortices — the skyrmions — the «atomic bar magnets» of the iron atoms spin around (orange and green arrows) and have an opposite orientation in their centres (blue arrows).

In MRI, the patient's body is surrounded by an intense magnetic field, making the hydrogen nuclei in water in the body line up like bar magnets.

This image depicts the magnetic field lines between two bar magnets.

As far as we can tell, though, nature only supplies magnetic charges, or poles, in pairs — the inseparable north and south poles of the bar magnets beloved of school science demonstrations, for example.

In the simplest models of reversals, the Earth's magnetic field behaves like a bar magnet that points roughly along the planet's axis of rotation.

The farther away from Earth you get, the more its magnetic field actually does act like a dipole, or a bar magnet — even if in reality it is no such thing.

In the presence of a magnetic field, these electrons will align with the field, creating regions of rock similar to a bar magnet.

And here's something to add even more confusion to the north magnetic pole (aka dip pole) versus north geomagnetic pole (aka dipole): the magnetic pole in Earth's northern hemisphere acts like the south pole of a bar magnet.

So the north magnetic pole is where the earth's magnetic field lines pull toward the planet, acting like the south pole of a bar magnet.

«The north pole of your bar magnet is attracted to the north [magnetic] pole of the earth,» Maus adds, the reverse of the usual situation in which like poles on magnets repel one another.

«If you look at the north pole of the bar magnet you have the field lines going from the north pole to the south pole, but for the earth it's exactly opposite,» Maus explains.

Magnetic interactions between neutrons and atoms — which both behave like tiny bar magnets — also generate diffraction patterns.

This illustration shows how the magnetic fields of individual atoms, reimagined as bar magnets, change position like tiny compasses when heat or a current is applied to a solid material.

These fields typically have the same applelike shape as that of a bar magnet: The imaginary «lines» that trace the field emerge from the magnet's south pole, looping northwards through space and plunging back into magnet's north pole.

Spin often is compared with a tiny bar magnet like a compass needle, either pointing up or down — representing one or zero — in an electron or an atom's nucleus.

Like two tiny bar magnets, two atoms can stick together and form a new particle that propagates in the crystal.

To get the sperm to swim in liquid, the researchers switch on an oscillating magnetic field — an effect roughly equivalent to making jazz hands while holding a bar magnet.

Generally speaking, magnetic fields can be used to change the magnetization of a magnetic material, much like a bar magnet can magnetize an otherwise nonmagnetic sewing needle, and can even reverse its magnetization completely in some cases.

A unique property of the molecule is the large permanent dipole moment, which reacts with an electric field much like a bar magnet reacts with a magnetic field.

There you'll learn that if you break a bar magnet in two, you get two magnets — the new ends created by the break just become new poles.

Those metals can be magnetized because each of their atoms acts like a tiny bar magnet.

These do not exist in the real world: They would be the equivalent of cutting a bar magnet in half and ending up with separate north and south magnets, whereas what really happens is you end up with two shorter magnets, each with two poles.

«In this way, images of field lines are produced almost like using iron filings around a bar magnet to make its magnetic field visible, but with a resolution in the nanometre range.»

Because polar molecules are like little bar magnets — with a north and south — this property would also enable the researchers to build systems in which cold particles can interact easily, something that is difficult to do with atoms.