loading...
2
The earliest versions of concrete as well as rock crushers included making use of 2 rocks being pounded versus each other. An anvil was actually made up by one stone, while the weight of the various other was actually utilized with manual energy to accomplish the required squashing.

Comments

Who Upvoted this Story

Social Bookmarking Sites
What is Kliqqi?

Kliqqi is an open source content management system that lets you easily create your own user-powered website.

Hello
Latest Comments
loading...