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0:07
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Interesting Tasty Farm
Tunneling with Precision: The Rock Breaker's Underground Reach
The Mechanics of Mechanical Rock Excavation This technique represents a shift from traditional drill-and-blast methods to a more continuous and controlled mining process. The roadheader applies concentrated mechanical force directly to the rock face, breaking it through a combination of impact, shear, and tension. This is particularly effective ...
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At Burnt Mesa Pueblo, in one of the archaeological excavation sites, the artifact density (number of prehistoric artifacts per 10 liters of sediment was 1.5 (Source: Bandelier Archaeological Excavation Project: Summer 1990 Excavations at Burnt Mesa Pueblo and Casa del Rito, edited by Kohler, Washington State University Department of Anthropology). Suppose you are going to dig up and examine 50 liters of sediment at this site. Let r=0,1,2,3, …be a random variable that represents the number of pre
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