magnetic field

  1. People Can Sense Earth’s Magnetic Field

    A new study, published online in eNeuro, determined that through studying brain waves, humans can potentially have magnetoreception abilities. This “sixth sense” was previously only known to occur in certain animal species, such as birds and fish, who use the magnetism for navigation. What is Magnetoreception? While it sounds complicated, magnetoreception is, at its fundamental level, the perception of a geomagnetic...
  2. Is Earth’s Magnetic Field Flipping?

    Is Earth’s Magnetic Field Flipping? According to Nature, Earth’s north magnetic pole is moving so quickly that the World Magnetic Model (WMM) needed to be updated only four years after its latest update.  Even though the 2015 update to the model was expected to remain valid until 2020, it’s close to exceeding the acceptable limit for navigational errors. so, updates were made and released in February 2019. Periodically, the north and south poles move so much that they trade locations, which is known as a magnetic field flip.This phenomenon most likely should not occur for thousands of years, however. But, the fact that WMM needed to be updated so quickly has us questioning what is it that causes the poles to shift, and what this means for Earth’s magnetic field. Below, we outline what all plays into the changes. Continue reading →
  3. Magnetic Field Causes Metamaterial to Stiffen

    Magnetic Field Causes Metamaterial to Stiffen A new synthetic material has been shown to have interchangeable stiffness when it comes in contact with magnets. This metamaterial—an artificial structure comprised of a grid-like network of plastic tubes filled with fluid that becomes more viscous in a magnetic field—causes the tubes to firm up in a magnetic field, allowing the tube to turn from soft to rigid in a split second. Continue reading →
  4. Magnetic Field Diode

    Magnetic Field Diode The future of electronics may change, as researchers have created a material that acts as a magnetic diode. This “magnetic field diode” is similar to the already known electrical diode, but this device could transfer a magnetic field to another object, but not the other way around. Continue reading →
  5. Jupiter's Moon's Magnetic Field

    Jupiter's Moon's Magnetic Field In December 1996, Dr. Margaret Kivelson, professor emerita of space physics at the University of California, Los Angeles, and her team of physicists discovered that Europa—one of Jupiter’s moons—had a magnetic field. Flash forward to today where Dr. Kivelson is now a co-investigator working on an instrument that will be used for the Europa Clipper mission. This spacecraft, scheduled to launch around 2022, will study the habitability of Europa, Jupiter’s “ocean moon.” Continue reading →
  6. Microbots Made from Mushroom Spores Could Clean Polluted Water

    Magnets and Microbots Cleaning Water Heavy and toxic metals, including lead, can cause serious health problems such as reduced growth and development, cancer, organ damage, or nervous system damage if they leak into our water. In fact, lead exposure through water accounts for almost half a million deaths each year. Luckily, scientists at the Advanced Nanomaterials and Microrobotics Laboratory (ANML), a part of The Chinese University of Hong Kong, recently discovered that iron-oxide coated microbots made from mushroom spores could help in removing these heavy metals from contaminated water. Similar to a robot but on a much smaller scale, a microrobot is a miniaturized machine designed to perform a specific task or tasks repeatedly and with precision. Continue reading →
  7. Magnetic Navigation in Fish

    Magnetic Navigation in fish When fish are born in coral reefs, they are often tiny and poor swimmers. Because of this, they are pushed away from the corals from which they are born weeks before they learn to swim effectively. Remarkably, 60% of these fish manage to make it back to their first homes despite their unfavorable beginnings. Continue reading →
  8. Unveiling Complexity in Jupiter’s Magnetic Equator

    There’s more to Jupiter than what meets the eye. At least, that’s what planetary scientists recently discovered when they stumbled upon a mysterious dark “ribbon” around Jupiter’s magnetic equator. This ribbon, created by interactions between the planet’s magnetic field and ionosphere, was found by a team led by University of Leicester planetary astronomer Tom Stallard. Continue reading →
  9. Magnets and First Aid: Staying Prepared For When Injuries Arise

    For those who have regularly worked around magnets, has your finger ever been caught in a pinch between two pieces of neodymium as they magnetically attract? If yes, then you likely already know the importance of proper magnet safety. In reality, injuries happen, and you’ll need to prepare yourself accordingly. There are proactive measures you can take to ensure that you’re ready for a worst-case magnet injury scenario. It begins with having a firm understanding of the dangers of magnets, some of the most common injuries and – perhaps most important – efficient first aid practices/supplies to ensure proper treatment. Continue reading →
  10. Magnets in Signage: Four examples you see every day

    Although you might not recognize it, magnets have a significant impact on the things we use on a daily basis. They’re used for a ton of products spanning a variety of different industries. We use them to hang notes and pictures on our refrigerators, to close the cabinets in our homes, and even to direct us through a hiking trail with our compasses. But what about signs? Many signs you encounter every day heavily depend on magnets. We’ll explore a few examples below. Continue reading →

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