Great Pyramid Hydraulic Pulse Generator and Water Pump
Working models of the suberranean section of the Great Pyramid. A hydraulic pulse generator and water pump built with the subterranean chamber.
A review of rock cutting for underground mining: past ...
WITS SPECIAL EDITION - VOLUME I . A review of rock cutting for underground mining: past, present, and future . D. Vogt. Centre for Mechanised Mining Systems, University of the Witwatersrand Johannesburg, South Africa