こうど
モース硬度
1. Mohs' hardness
2. Mohs scale of mineral hardnessThe Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science. The method of comparing hardness by seeing which minerals can scratch others, however, is of great antiquity, having first been mentioned by Theophrastus in his treatise On Stones, c.
Read “Mohs scale of mineral hardness” on English Wikipedia
Read “モース硬度” on Japanese Wikipedia
Read “Mohs scale of mineral hardness” on DBpedia
Read “Mohs scale of mineral hardness” on English Wikipedia
Read “モース硬度” on Japanese Wikipedia
Read “Mohs scale of mineral hardness” on DBpedia
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