A.Caxton

If you ask an older relative if they have heard of an evaporative cooler, they may say no. But chances are they would recognize the idea behind the technology.

Here, with the extract of the book THE HISTORY OF THE TELEPHONE by Herbert N. Casson, we show where moviles, cell phones and pdas began. In that somewhat distant year 1875, when the telegraph and the Atlantic cable were the most wonderful things in...