Mirrors
See also:
Head restraints
Head restraints supplement the other vehicle
safety systems. They may provide
additional protection against injury in certain
rear end collisions. Adjust the head
restraints properly, as spe ...
AM radio reception
AM signals, because of their low frequency, can
bend around objects and skip along the ground.
In addition, the signals can be bounced off the
ionosphere and bent back to earth. Because of
thes ...