The Louisiana Purchase stretched from the Mississippi River to the beginning of the Rocky Mountains. Official boundaries were not determined, except that the eastern border ran from the source of the Mississippi River north to the 31 degrees north.
Cooled (or air conditioned) seats work by confining cooled air directly in the seat where the passenger is seated. Different car makers achieve this in different ways, but here is the most common method: The seat is made with more porous material than traditional car seats, which are made to allow air to flow through them.
Heated seats, meanwhile, use the same technology as electric blankets or other appliances and gadgets that use electricity to create heat. It uses a long strip of a heating element through the material of the car seat called a resistor that heats up when an electrical current is run through it.