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Earth Magnetic facts

While investigating facts about Earth's Magnetic Field and Earth Magnetic Field Weakening, I found out little known, but curios details like:

Astronomers discovered a bizarre rogue planet wandering the Milky Way. The free-range planet, which is nearly 13 times the mass of Jupiter and does not orbit a star, also displays stunningly bright auroras that are generated by a magnetic field 4 million times stronger than Earth's.

how earth's magnetic field is generated?

Birds are able to see and use the Earth's Magnetic field to migrate due to a protein in their eyes called CRY4. To them the Earth's Magnetic field appears to be a bright haze in the sky in the direction of North or South. Their brain even produces this protein during the migration season.

What causes earth's magnetic field?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what creates earth's magnetic field. Here are 50 of the best facts about Earth Magnetic Field Flip and Earth Magnetic Pole Shift I managed to collect.

what's earth's magnetic field?

  1. Airplane runway numbers have to sometimes be repainted since they are based on Earth's magnetic north, which is constantly shifting.

  2. Big steel vessels have a magnetic signature, due to the polarity of electrons lining up to the earths magnetic field when the steel was heated in manufacture through welding etc, and can be used to locate where the vessel was made.

  3. Foxes use the Earth's magnetic field to target prey beneath the snow

  4. Under southern Africa there's an anomaly where the Earth's magnetic field is reversed, which might be a sign that the entire planet's magnetic field might reverse again

  5. The direction of Earth’s magnetic field reverses every 200,000 - 300,000 years

  6. Cows will stand along the Earth's magnetic poles - facing either north or south whenever they're grazing or resting regardless of wind or other factors. Nobody is sure why.

  7. Submarines were originally detected by sensing the way they distort the Earth's magnetic field. Now submarines have copper wires (with 4,000 amps running through them) wrapping the hull to demagnetize the ship to avoid detection.

  8. The term "rare earth" as in "rare Earth magnets" can be misleading as these metals are not particularly rare or precious. They are about as abundant as tin or lead.

  9. The magnetc field of Earth orients iron-rich minerals in molten lava along the field lines, then becomes locked into place as the lava hardens. By studying different layers of solidified lava, we know that magnetic poles fliped in the past and will do it again.

  10. Birds can see the Earth's magnetic field due to the presence of a protein in their retina called Cryptochrome(Cryp4)

earth magnetic facts
What happens when earth's magnetic field flips?

Why earth magnetic field reverses?

You can easily fact check why earth magnetic field change by examining the linked well-known sources.

Rare Earth Magnets are not "Rare" at all, but are as abundant as tin or lead

On 19 July 2012 the "million-degree plasma in the sun's atmosphere began to cool and fall to the surface, resulting in a dazzling magnetic display known as coronal rain...it condensed along twisted magnetic field lines...and formed giant streaming arcs, some as tall as five Earths stacked high." - source

The South Atlantic Anomaly, a region of space where computers crash, astronauts lose part of their vision, and a space telescope was destroyed by a guidance computer fault, all caused by the Earth being misaligned with its magnetic field. - source

The magnetic field on Jupiter is 20,000 times stronger than earth's magnetic field.

Earth's magnetic field is not created by its solid iron and nickel inner core. Instead it is created by the earth's outer core, made of molten iron and nickel. The magnetic field is created when the outer core flows around the inner core.

When earth's magnetic field flip?

The aurora look like moving ribbons of light because the particles of plasma are moving in response to the Earth's magnetic field.

How earth's magnetic field protects us?

Dogs can sense Earth's magnetic field, and will attempt to align themselves facing north when they poop in an unfamiliar place. This is why they often spin before they defecate.

Foxes are the first animal to use Earth's magnetic field to judge distance and direction

During the course of normal operations submarines build up 'magnetic signatures' due to the Earth's magnetic field that make them more vulnerable to detection. The Navy 'deperms' subs regularly to make them magnetically silent again.

Cows and deer tend to align themselves north and south with Earth's magnetic field when relaxing.

There exists a bacteria that naturally produces magnetic material to align itself with Earth's magnetic field

What happens when earth's magnetic field flips?

The magnetic poles of Earth move in loops of up to 50 miles (80 km) every day. The poles also experience a net movement of about 25 miles each year.

Earth's magnetic field, caused by its rapid rotation and its nickel-iron core, protects the planet from solar wind's effects.

corpse of a tree whose life-spanned 1,500 years and fell over 40,000 years ago has been unearthed, and that it shows evidence of having survived a near magnetic reversal of the Earth.

The Earth has more than one North Pole! The Geographic North Pole, a town in Alaska named "North Pole", the Magnetic North Pole, Instantaneous North Pole, where Earth's rotational axis meets its surface, as well as the Celestial North Pole, where the axis spears the night sky.

The Iron Age Geomagnetic Spike, when the earth's magnetic field became 2.5 times stronger than it is today

How earth's magnetic field works?

Humans have working magnetic sensors sending signals to the brain and allowing the brain to detect Earth's magnetic field. This sense was known to be used by bees, turtles and birds to navigate through the world.

Earth has a magnetic field because of a molten iron core that rotates in the opposite direction of the outer core vs. Mars which has solid core that does not rotate

THEMIS--Time History of Events and Macroscale Interactions during Substorms--satellites "found evidence of magnetic ropes connecting Earth's upper atmosphere directly to the sun." Scientists believe "solar wind particles flow...along" the ropes giving "energy for geomagnetic storms and auroras."

Birds have magnetic material in their sinuses to detect Earth's magnetic field; Humans have a vestigial remnant of this material

Foxes can see Earth's magnetic fields and use it to hunt prey.

The magnetic pole located in earth's northern hemisphere is actually the south pole of earth's magnetic field.

NASA found "portals" between the Sun and the Earth's Magnetic fields.

Sea Floor Spreading. Where the continental plates spread apart, lava emerges and cools into new rock which retains the Earth's magnetic polarity. But, the magnetic polarity reverses, irregularly, perhaps every dozen thousand years so, manifesting a striped pattern on the sea floor.

At one point in human history, we extensively studied the canine excretion process, and discovered that behind the methodology lies a desire to poop according to earths magnetic fields

Direction of Earth’s magnetic field reverses every 200,000 - 250,000 years

The magnetic field of Saturn is approximately 578 times stronger than Earth's magnetic field.

The Earth's magnetic poles have reversed many times in the past, and we are overdue for another reversal.

The US and Russia detonated nukes in space thereby distorting the earths magnetic shield

It is believed that magnetic instabilities on the sun may be responsible for ice ages on earth.

This is our collection of basic interesting facts about Earth Magnetic. The fact lists are intended for research in school, for college students or just to feed your brain with new realities. Possible use cases are in quizzes, differences, riddles, homework facts legend, cover facts, and many more. Whatever your case, learn the truth of the matter why is Earth Magnetic so important!

Editor Veselin Nedev Editor