magnetic field

  1. Scientists Use Pottery and Flint to Detect Magnetic Fields

    Scientists Use Pottery and Flint to Detect Magnetic Fields
    There’s a lot to learn about Earth’s magnetic field — did you know that it’s dented or that unpredictable geometric jerks can occur? You might know that the strength and direction of Earth’s magnetic field have changed over time — it has flipped numerous times in the history of our planet! Scientists want to study the pattern of this change to help make predictions about how the planet’s magnetic field will behave in the future.  Instruments for measuring Earth’s magnetic field have only been around for a few hundred years, but scientists have figured out other ways to analyze Earth’s magnetic field. This includes a new study using artifacts recovered in Jordan from the Neolithic period or the New Stone Age. Read on to learn more about this discovery and how it’ll impact the future of magnetic field research.  Continue reading →
  2. Two More Things You May Not Know About Earth’s Magnetic Field

    Two More Things You May Not Know About Earth’s Magnetic Field
    In our last blog post, we talked about how the Earth’s magnetic field is dented — remember, we’re safe from any effects this dent has on the ground! — and how the magnetic field has reversed… hundreds of times! Again, the magnetic field reversing may seem alarming — many ‘doomsday’ theories come from the fear of pole reversal — but, rest assured, it doesn’t signify the end of the world. Now, we have two more magnetic phenomena to share — geodynamo paradox and geomagnetic jerks!  Continue reading →
  3. Two Things You May Not Know About Earth’s Magnetic Field

    Two Things You May Not Know About Earth’s Magnetic Field
    If you didn’t know already, the Earth is a giant magnet. Its magnetic field comes from its core being solid iron, with molten metal surrounding it. This magnetic field acts like a protective shield around the planet, trapping and repelling charged particles from the Sun. There’s a lot to learn about Earth’s magnetic field, with new discoveries being made almost yearly! In this blog post we’re covering two things — the “dent” in the magnetic field, and how the field flips.  Continue reading →
  4. Inside A Bird’s Mysterious Magnetic Sense

    Inside A Bird’s Mysterious Magnetic Sense
    You might think that being able to see the world through an aerial view would be the only navigation tool birds need. However, a bird’s internal navigational system has something more complicated and fascinating going on. For years, scientists have theorized that migratory birds experience an innate phenomenon that allows them to ‘see’ the Earth’s magnetic field. Recently though, scientists at the University of Tokyo turned this hypothesis into actual proof.  Continue reading →
  5. Megatesla Magnetic Field

    Megatesla Magnetic Field
    Most magnetic fields on Earth, even man-made ones, are actually not that strong. For years, experts have been researching strong magnetic fields created in laboratories. However, the magnetic strength of this research has been weak (relatively speaking). For instance — the geomagnetic field that affects compass needles is between 0.3 and 0.5 gauss while MRI technology used in hospitals generally produces fields of around 1 tesla, or 10,000 gauss.  No one has been able to successfully go higher than 1,200 tesla or slightly over 1 kilotesla.  That is, until now-- Continue reading →
  6. Dogs and Earth’s Magnetic Field

    Dogs and Earth’s Magnetic Field
    Your furry best friend may have a sixth sense you don’t know about. That’s right, a recent study led by zoologist Hynek Burda, discovered that dogs can sense the Earth’s magnetic field and use it for navigational purposes. When doing their business, dogs seem to be aligning themselves facing North or South along the magnetic fields, meaning, the way they mark their territory may not be random at all and it may help them find their way. Continue reading →
  7. The "Dent" in Earth's Magnetic Field

    The "Dent" in Earth's Magnetic Field
    A dent is evolving within Earth’s Magnetic Field, and it has scientists watching closely. This isn’t necessarily new news though. Scientists have known about this weak spot for decades now, but it’s of importance right now due to one crucial factor-- it’s apparent growth.  This weak spot phenomenon is called The South Atlantic Anomaly (SAA) and it stretches across the Atlantic Ocean from South Africa into Brazil. In this area, the magnetic field is weaker than normal, resulting in a “dent.” The Earth’s magnetic field, also known as the geomagnetic field, is important as it protects us against solar windー a flow of charged particles that are released from the upper atmosphere of the Sun.   Continue reading →
  8. Magnetism in Animals

    Magnetism in Animals
    Birds, amphibians & reptiles, and marine animals navigate by sensing changes in Earth’s magnetic field. We already know life on Earth is dependent on its magnetic field thanks to the powerful electrical currents it creates, and scientists have proven that some animals use magnetic sense, but we wanted to dig deeper into the why and how magnetic fields are so important to keep animals going where they need to go.  Continue reading →
  9. New Study Suggests The End of the Lunar Dynamo Happened 1B Years Ago

    New Study Suggests The End of the Lunar Dynamo Happened 1B Years Ago
    The moon is known to have likely lost its magnetic field after an internal dynamo stopped firing, the question has remained, however, of when. A team led by Said Mighani from MIT’s Department of Earth, Atmospheric, and Planetary Sciences, and Huapei Wang from the China University of Geosciences, have been studying the moon’s magnetic field for several years, and think they found an answer.  Continue reading →
  10. Magnetic Field May Improve Frozen Avocado Puree Properties

    Magnetic Field May Improve Frozen Avocado Puree Properties
    Does anyone really know the lifespan of an avocado? It feels like one minute it’s hard as a rock and then the next it’s mushy and too ripe.  If you’re a fan of avocados and haven’t nailed down the ripeness timing, freezing them can be a great way to extend the shelf-life of food, but, the quality post-thawing is sometimes inferior. Scientists Yamei Jin and Zhengjun Xie from Jiangnan University in China may have found an answer: adding a magnetic field in the freezing process.  Continue reading →

Items 1 to 10 of 56 total

Copyright © 2020 Apex Magnets. All rights reserved.