Martin produced 23 No. 1 hits in the United States. ( 1 CNN)Sir George Martin, the music producer whose collaboration with the Beatles helped redraw the boundaries of popular music, died Tuesday, according to his management company. He was 90.
How ABS works. When the driver hits the brakes this pressurises a hydraulic system which causes the brake pads to squeeze against the discs which causes the car to slow down.
Modern cars have brakes on all four wheels, operated by a hydraulic system. The brakes may be disc type or drum type. The front brakes play a greater part in stopping the car than the rear ones, because braking throws the car weight forward on to the front wheels. Many cars therefore have disc brakes, which are generally more efficient, at the front and drum brakes at the rear.