だからハトは自分の頭の上にある磁場を感じることができるが地球の磁場を感じることができない。の英語

So the pigeon can feel the magnetic field on its head, but it can't feel the Earth's magnetic field.

Suppose that pigeons have something in their heads which can feel lines.

Suppose for a moment that pigeons had something in their heads which could sense magnetic fields.

Perhaps they can feel the lines with their bodies.

This may be because they could not use the earth's magnetic field.

Without the magnets on their heads, they could find their way home in any weather.

Pigeons can find their way home with the help of the Earth's magnetic field.

But the compass isn't in the head of the bee, it's in the body.

In other words, the field of the magnet is near the pigeon's head.

the magnetic field of the earth

The magnetite is attracted to the earth's magnetic field.

an irregular change that occurs in the earth's magnetic field, called geomagnetic storm

To learn the answer you must know a little about the magnetic field around the world.

the geomagnetic field of the earth

the area around a magnet influenced by the magnetic force which is emitted

The magnets on their heads were responsible for that.

materials like aluminum or platinum become magnetized in a magnetic field but it disappears when the field is removed

the two poles of the earth where the magnetic force is the strongest

The magnets, of course, have a magnetic field around them.

This way the magnet can resist a strong magnetic field.

the phenomenon in which an object that has approached a magnetic field becomes magnetic, called magnetic induction

terrestrial magnetism

terrestrial magnetism

The magnet is non-magnetic.

terrestrial magnetism

a point on a magnet where its magnetic power is the greatest

It can be magnetized up to 30 tesla if it is placed in a more powerful magnetic field generator.

the point on the earth's surface toward which a magnetic needle points, called north magnetic pole

a magnet that retains its magnetism after being removed from a magnetic field

a magnetic field