معلومات عن المغناطيس

Magnet
Lodestone is magnetic iron ore, a mineral and is widespread in nature and is known since ancient times and an initial component in igneous rocks. Were concerned by the Muslim scholars and indicated many of the properties, the most important lured to a piece of iron if you brought him, and devoted al-Biruni in his book: Aljmaher to know Gems chapter on the magnet, and pointed to the commonality between the magnet and amber (electricity), which Jzbhma of things, and that magnets outperform to amber in this capacity, he Peronist that more raw materials magnets found in Anatolia and were made of nails used in the shipbuilding industry in that country, the Chinese They were making their ships to include and link plates Timber olive to each other with ropes of fiber plants, however, that there mountains of stone magnet immersed in the waters of the Sea of China, were extracted from the bodies of iron nails Vtaatvkk ships and sink in the water.


The difference between Amoaentis and other materials
Molecules contained in the magnet material in one direction, but in the non-magnetic material particles contained no material and be scattered. Name-called magnet magnet


Scientists talk about the magnet
Al-Biruni referred to the magnet deposits in eastern Afghanistan and among the parts of the sediment surface magnetism is weak compared with the internal parts of them, and the reason is parts of the surface sediments of the sun. Muslim scholars and sub-iron and stone magnet Baxq and adored, Valhdid attracted to the magnet Kangmab to the adored lover.



And among Muslim scholars that the lodestone attracts iron filings, even if there was a break between them, but it attracts the iron needle it, and this in turn attracts the needle If needle brought them and so on to see the needles associated with each iron is strongly felt. Besides the attractive force of magnets, the repulsive force has also, if put magnets on a hill inhabited by ants, ants abandoned immediately. The Muslim scholars, including Shaykh al-Qazwini and Hittin some factors for the loss of magnet strength of attraction be that if the rules of engagement with a piece of garlic or onions, and when cleaning the magnet of the smell of garlic or onions, immersed in the blood of goats, a warm back to his property.

And among Muslim scholars that the knife or sword, gaining status in the itch if magnet lodestone. And retains all of the sword and the knife Boukoas magnetism for a long period of up to a century. And studied the magnetic properties of lodestone in a vacuum, including Razi, who wrote a letter entitled: Bug attract lodestone for iron, and between Altevasche that the cause of affinity iron of the magnet is their union, in essence (ie, that are complex chemically and one language of this era). He spoke for the Arabs and the attractive force pointed out that there is a relationship between some minerals and some of the other example, Shaykh al-Hattin in selected age that gold is a magnet mercury. It was no surprise that weaves rights in ancient times some of the myths about the lodestone.

And use the magnets in ancient medicine to remove phlegm and prevent cramping, The Muslim doctors that if caught patient lodestone still muscle cramps of the limbs, and were using lodestone to rid the body of the iron pieces that fall to the path of error and therefore be passed a magnet over the body injured, and stated that lodestone live arthritis pain and gout if Mode - after Dekh vinegar - click placements pain.