They marked the crucial turning point when we realized the ability to produce things and began to see the world as malleable to our needs. Digital Camera Taking snaps on holiday used to mean loading film and then sending them away to be developed, hoping they would develop into the images you wanted to remember.
Photo Source 6. Why or why not? Ford Motor, Honda, and other major carmakers have also made major advances in the field. Photo Source 8.
Considered out of context, they are unimpressive things, crude chunks of rock shaped into marginally useful objects. It would often take up to an hour to re-heat a meal.