Human Use
The use of rocks has had a huge impact on the cultural and technological development of the human race. Rocks have been used by humans and other hominids for more than 2 million years. Lithic technology marks some of the oldest and continuously used technologies. The mining of rocks for their metal ore content has been one of the most important factors of human advancement, which has progressed at different rates in different places in part because of the kind of metals available from the rocks of a region.
Read more about this topic: Rock (geology)
Famous quotes containing the word human:
“Fielding being mentioned, Johnson exclaimed, “he was a blockhead ....” BOSWELL. “Will you not allow, Sir, that he draws very natural pictures of human life?” JOHNSON. “Why, Sir, it is of very low life. Richardson used to say, that had he not known who Fielding was, he should have believed he was an ostler.””
—Samuel Johnson (1709–1784)
“Why was the human race created? Or at least why wasn’t something creditable created in place of it? God had His opportunity. He could have made a reputation. But no, He must commit this grotesque folly—a lark which must have cost Him a regret or two when He came to think it over and observe effects.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)