3D printing uses computer-aided design (CAD) to create three-dimensional objects through a layering method. Sometimes referred to as additive manufacturing, 3D printing involves layering materials, like plastics, composites or bio-materials to create objects that range in shape, size, rigidity and color.
Answer:
They made operations more technical because users had to program their own computers.
Answer:
No, Qin Shih Huang Ti, was the emperor. No more was feudalism know legalism. Fell due to weak son. unification of china politically and economically, great wall, unified language, roads etc.
Explanation:
The Prime Meridian, divides the Earth at 180 degrees longitude.