greatest invention in our world?
By xuzhenzu
@xuzhenzu (32)
China
2 responses
@investorshub (286)
• United States
5 Jul 07
i would say the wheel because it is essential to many other machines and inventions.
@ShirleyAnn66 (45)
• Canada
5 Jul 07
I would say the printing press. It literally changed the world. Because of the printing press, ideas could be readily communicated to more people, and it allowed the common person to "own" and access those ideas. So, that has my vote!
