During the first fifty years of the twentieth century, ham radio went from being an experiment to virtually an art form. Because of the few government restrictions and the low …
In this title, the genesis of Morse's invention is covered in detail, starting in 1832, along with the establishment of the first intercontinental telegraph line in the United …
In 1873, Scottish physicist James Clerk Maxwell first advanced the idea that there might be electromagnetic waves that were similar to light waves, a startling concept to the …
