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:
“Jesus wept; Voltaire smiled. From that divine tear and from that human smile is derived the grace of present civilization.”
—Victor Hugo (1802–1885)
“Each man’s private conscience ought to be a nice little self-registering thermometer: he ought to carry his moral code incorruptibly and explicitly within himself, and not care what the world thinks. The mass of human beings, however, are not made that way; and many people have been saved from crime or sin by the simple dislike of doing things they would not like to confess ...”
—Katharine Fullerton Gerould (1879–1944)