history of technology

4. where an object comes from
5. productively working
8. the development of continuous manufacturing, sophisticated transportation and communication systems
10. humans talking to one another
12. the modern era
17. facts that are proven
18. started with the development of stone tools used for hunting, cutting, and pounding vegetables and meat
19. a group of inventions working together
20. removing unwanted materials from a substance

1. saw the development of many technological devices that produced long-lasting effects on technology and society,The waterwheel The block printing process Paper money The magnetic compass The printing press
2. a time of rebirth of the arts and humanities, was also an important development in the history of technology
3. hand held weapons made of stones
6. an improvement of an invention
7. human social development
9. emphasis on the processing and exchange of information
11. defined by the use of iron and steel as the primary materials for tools
13. something that is new
14. means to reinvent
15. began with the discovery of copper and copper-based metals
16. objects humans use for productivity