Sounds are everywhere, and you have two cool parts on your body that let you hear them all: your ears! Your ears are in charge of collecting sounds, processing them, and sending sound signals to your brain.
Still the classic, rear drive was basically the only drivetrain system for many years. A longitudinally mounted engine, with the transmission bolted directly to it, sends power via a driveshaft to a differential unit at the rear axle. The differential turns the power 90Â° and sends it to the rear wheels.
Shafts are vertical or inclined passages which connect the underground workings of the mine with the surface. The top of a shaft is called the collar. Shafts are primarily used for haulage and personnel access.A secondary shaft which has been driven down from within the mine is called a winze.A secondary shaft which has been driven upwards from within the mine is called a raise. Winzes and raises are mainly used as air shafts, ore chutes, manways or for exploratory purposes.ithin a drift, the roof is called the back and the side walls are called the rib. The floor may sometimes be referred to as the sill. Headframes are wood or steel structures constructed over a mine shaft or winze to support pulleys used with cables and hoists for haulage and access.