Based on fieldwork in Kinshasa and Paris, Breaking Rocks examines patronage payments within Congolese popular music, where a love song dedication can cost 6,000

The weekly source of African American political and entertainment news.

Significant advances have been made in non-explosive rock breaking techniques in the past two decades. This monograph focuses specifically on environmental-frie

Describes what the different kinds of rocks are, their properties, and what they are used for and explains what fossils and fossil fuels are.

Discussing rock breakage by blasting, this text includes: results of complex investigations into the rock breakage mechanism and the patterns of crack formation