1 000 000 years
sense god made earth
sense god made earth
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
Refrigerator magnets, car magnets, neodymium magnets are names of small magnets.
The first known magnets were naturally-occurring rock, so they must have been made by whoever made the Earth and its rocks. Nobody was around to watch.
Rare earth magnets, such as neodymium magnets, are much stronger than traditional magnets like ferrite magnets. They are also more expensive and are made with elements from the lanthanide series of the periodic table, making them rarer and harder to produce. Rare earth magnets can retain their magnetization over a longer period of time compared to normal magnets.
Yes, and no. Magnets originally come from the earth but humans found what the were made of and created their own
they have been on the earth for along time
http://magnitrf.ru/
Ferromagnetic materials are made of iron. Iron can be magnetized with proximity to other magnets. The core of the Earth is magnetic. As a result, magnets can be created without interference.
We live on a huge magnet, the Earth, so our environment is "Magnet Adapted" The Earth as a magnet helps to shield us from various cosmic rays. Smaller magnets are all around us in every electric motor, current carrying wire, pounded nail, refrigerator collection of reminders, CRT televisions, coil operated speakers, and many novelty items. No harm has ever been traced to these items due to its magnetic nature. In the same manner no good has ever been proven for the "Magic Medical Magnets" sold by medical novelty companies.
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