Ferromagnetism Collection

Magnetic repulsion. The iron filings sprinkled between these two bar magnets reveal the shape of the repulsive magnetic field between them

Magnetism. Iron shavings attracted to two ends of a horseshoe magnet. The filings are attracted to the magnet by the force of its magnetic field

Magnetic ore separator, 19th century
Magnetic ore separator. This apparatus comprises an electromagnet that is being used to magnetise the iron in iron ores and separate them from non-magnetic ores

Horseshoe magnet with various magnetic and non- magnetic objects. Ferrous objects such as a knife and screw are temporarily magnetised by a permanent iron magnet

Horseshoe magnet attracting iron filings

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Ferromagnetism, the captivating force that draws us in with its magnetic charm. From the mesmerizing dance of magnetic repulsion to the alluring pull of magnetic attraction, this phenomenon has intrigued scientists and fascinated onlookers for centuries. In the 19th century, ferromagnetism played a pivotal role in revolutionizing industries with inventions like the magnetic ore separator. This ingenious device harnessed the power of magnetism to separate valuable ores from unwanted materials, paving the way for efficient mining processes. At the heart lies the concept of a magnetic field. These invisible lines of force guide our understanding and enable us to manipulate magnets for various applications. Spintronics research takes it even further by exploring how electron spins can be utilized in electronic devices, opening doors to futuristic technologies. Imagine witnessing a horseshoe magnet effortlessly attracting iron filings, creating intricate patterns that seem almost magical. This simple yet awe-inspiring display showcases ferromagnetism's ability to captivate our imagination and reveal hidden forces at play. Whether it's unraveling mysteries through scanning tunneling microscopy (STM) or marveling at everyday objects like horseshoe magnets, ferromagnetism continues to enthrall both scientists and curious minds alike. Its influence can be seen everywhere - from household appliances relying on powerful magnets for functionality to advanced technological breakthroughs pushing boundaries in various fields. So next time you encounter a magnet or witness its fascinating effects firsthand, take a moment to appreciate ferromagnetism's enchantment – an enduring force that connects science with wonderment.