世間萬物的存在，必定有其存在的價值和意義，每一個事物的產生必定有其產生的根源，并非憑空而降。

Magnesium 鎂

1808年5月。英國化學家戴維（Sir Humphry Davy，17781829）電解汞和氧化鎂的混合物，得到鎂汞齊，將鎂汞齊中的汞蒸餾后，就提到了銀的色的金屬鎂。

鎂的英文名稱為Magnesium，它的命名取自希臘文，原意是＂美格尼西亞＂，因為在希臘的美格尼西亞城附近當時盛產一種名叫苦土的鎂礦（就是氧化鎂），古羅馬人把這種礦物稱為＂美格尼西·阿爾巴（magnesia alba）”，“alba”的意思是“白色的美格尼西亞”。我國則根椐這個詞的和經一音譯成鎂，鎂元素符號為Mg。

magnet Greek Mágnēs líthos meant ‘stone from Magnesia’ – Magnesia being a region of Thessaly, Greece where much metal was obtained. It had two specific applications: to ore with magnetic properties, and to stone with a metallic sheen. And it was the first of these that has come down to English via Latin magnēta as magnet. English magnesia comes from the same source, but it is not clear how it came to be applied (in the 18th century) to ‘magnesium oxide’, for it originally denoted, in the rather vague terminology of the alchemists a ‘constituent of the philosopher’s stone’. In the 17th century it was used for ‘manganese’ (and manganese itself comes via French from Italian manganese, an alteration of medieval Latin magnēsia). And when the term magnesium was introduced (at the suggestion of the chemist Sir Humphry Davy), it too at first denoted ‘manganese’.

magnetic 有磁性的，有吸引力的

magnetism 磁性，磁學；個人吸引力，個人魅力

magnetite 磁鐵礦

magnetize 使得有磁性；緊緊吸引住，迷住

magneto 磁發電機

magneton 磁子