Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, ...
Pandemic 2: Disease Mutation. Pandemic 2 is a disease game that allows more flexibility in creating a plague, including whether you want to be a bacteria, parasite or virus. Each disease has its own strengths and weaknesses. Note: See below game for instructions and tips. (And be sure to use hand sanitizer when youâre done playing.)
A pandemic influenza is a worldwide outbreak of disease that occurs when a new influenza virus appears in humans, causes serious illness and then spreads easily from person to person worldwide. pandemic is cause by a new virus that people have not been exposed to, so everyone is susceptible. Pandemic influenzas can cause more serious disease and many more deaths than the seasonal flu. Because of this, past pandemics have led to high levels of illness, death, disruption of society and economic loss.