Sometimes they even come right out and ask for a dudevorce by taking back the video game system they were keeping at your house.

Where semistationary shovels do the loading, some sort of vehicle must haul the rock either to the next part of the materials-handling system, located near the stoping area, or all the way to the shaft.

Dikes may be discordant to country rock if they intrude at a high angle to the bedding.

Tossing a coin is a classical procedure for producing a random number .... Tossing a coin 20 times can produce any one of 2²⁰ ... binary series, and each of them has exactly the same probability.