OASDI stands for old age, survivor and disability insurance, which is more commonly referred to as Social Security. To pay for these programs, the federal government imposes a tax on earned income that must be withheld by your employer.
According to the December 1985 issue of Popular Mechanics, the Protex Safety Signal Company introduced flashing turn signals in 1920. The first modern turn signal, though, can be attributed to Edgar A. Walz, Jr. who, in 1925, secured a patent for one and tried to market it to major car manufacturers. They just weren't interested, and the patent expired fourteen years later. Meanwhile drivers and inventors kept working on other solutions.
Tail Light. A tail light or a tail lamp is the part of the lighting system of a vehicle which is attached in front and at the rear part of the vehicle. They usually come in pairs (left and right). It has different types for different functions. The signal lights, or turn lights, are parts of the tail lamp assembly. tail light or a tail lamp is the part of the lighting system of a vehicle which is attached in front and at the rear part of the vehicle. They usually come in pairs (left and right).