Final answer:
Flint knapping is the ancient technique of creating stone tools by striking one stone with another to shape the first into a tool, notably practiced in Acheulean and Mousterian tool industries.
Step-by-step explanation:
The technique of striking a stone with another stone to alter it and create a tool is known as flint knapping. This method has been used since ancient times, with one of the most recognized periods being the Acheulean tool industry, which involved chipping away flakes from stone cores to create hand-axes. Over time, technological advancements led to the production of more sophisticated tools, including Mousterian tools, which were finer and could be used as cutting instruments, scrapers, or as parts of more complex tools. Flint knapping and these later techniques signify an important evolution in human engineering and the manufacturing of tools necessary for survival.