Sometimes the temperature does not decrease with height in the troposphere, but increases. Such a situation is known as a temperature inversion. Temperature inversions limit or prevent the vertical mixing of air.
Middle range machines can cost on average $400 and are often multi-function with copier and laser printer capabilities. Finally, high-end machines which offer high speeds, high capacity and high resolution come at a higher price-expect to pay $1000 - $2500 for such a fax machine.
First, Fax is simply military shorthand for, Facsimile (fack-simm-uh-lee). The Scot, Alexander Bain, invented the facsimile machine in the year 1843 using the technology â¦ of Samuel F.B. Morse, who had invented the telegraph machine a few years earlier.