The first makes use of of iron alloys such as metal dates to round 1400 B.C.E. With this enhance in population and availability of labor got here a rise in labor specialization. Other technological advances made in the course of the Paleolithic era have been clothes and shelter; the adoption of each technologies can’t be dated precisely, but they have been a key to humanity’s progress. As the Paleolithic era progressed, dwellings became extra refined and extra elaborate; as early as 380,000 B.C.E., people had been setting up short-term wooden huts. Clothing, tailored from the fur and hides of hunted animals, helped humanity broaden into colder regions; humans started emigrate out of Africa by 200,000 B.C.E. and into different continents, such as Eurasia. Once scientists had the best tools, such because the scanning tunneling microscope and the atomic drive microscope , the age of nanotechnology was born.
This demand–supply hole …