Demagnetized Meaning: Definition, Examples, and Translations
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demagnetized
[หdiหหmรฆษก.nษ.taษชzd ]
Definition
physics process
Demagnetized refers to the process of removing the magnetic properties from a material. This can occur naturally over time, or be induced through various means, such as heating or external magnetic fields. It effectively neutralizes the magnetism in ferromagnetic materials.
Synonyms
degaussed, neutralized, unmagnetized.
Examples of usage
- The steel bar was demagnetized after being heated.
- The computer's hard drive became demagnetized due to a strong magnetic field.
- We need to ensure that all equipment is demagnetized before repairs.
- Demagnetized tools are safer to use around sensitive electronics.
Translations
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Interesting Facts
Science
- Demagnetization can happen through heat, physical shock, or exposure to a strong opposing magnetic field.
- Devices like tape recorders and hard drives can become demagnetized if not properly cared for, leading to data loss.
- When you place a magnet in a microwave, itโs likely to become demagnetized due to the extreme heat and radiation.
Technology
- Magnetic fields are essential in many technologies like MRI machines; however, items used can become demagnetized and require recalibration.
- Old computer storage used magnetic tape, which might demagnetize over time, leading to the loss of information if not stored properly.
Historical Context
- Magnetism has been studied since ancient times, but the concept of demagnetization was developed during the 19th century with scientific advances.
- In the 18th century, the invention of the compass led to greater understanding of magnets and their ability to lose magnetism under certain conditions.
Everyday Life
- Common household items like refrigerator magnets can become demagnetized over time, especially if exposed to high temperatures.
- Some toys that utilize magnets might stop functioning properly if the magnets are demagnetized, leading to frustration for playtime.
Origin of 'demagnetized'
Main points about word origin
- The term 'demagnetize' comes from the prefix 'de-' meaning to remove, combined with 'magnetize', which relates to magnets.
- The word 'magnet' itself comes from the Greek word 'magnetis lithos', meaning 'Magnesian stone', referring to a type of iron ore found in ancient Magnesia.
The term 'demagnetized' comes from the prefix 'de-', which indicates removal or reversal, combined with 'magnetize', derived from the root word 'magnet'. 'Magnet' itself has its origins in the Latin term 'magnes', meaning 'magnet', and also traces back to the Greek word 'magnetis lithos', which means 'Magnesian stone', referring to lodestone. Lodestone was historically significant for its magnetic properties and is one of the earliest known magnetic materials. The concept of demagnetization became particularly important with the advent of electrical engineering and technology in the 20th century, leading to practices such as degaussing for data erasure on magnetic storage devices. Today, the process of demagnetization is utilized in various fields, including electronics, automotive, and manufacturing, to enhance safety and ensure the effectiveness of magnetic materials.