Both use electricity and radio waves to communicate.
"i think it is an early form of a telphone."No, it is not an early form of a telephone. It was invented after the telephone was. The harmonic telegraph was an improvement with the telephone, regarding the number of dots and dashes between the tones it created. It was invented by Elisha Gray in 1874.
The two inventions that changed the way Americans communicated in the 1800's are the telephone and telegraph.
the sewing machine, telegraph, steel plow, telephone, generator, bessemer steel process....etc
The practical electric telegraph system was invented by Samuel Morse, also the inventor of the Morse code.
The telegraph
Welll.... the telegraph replaced the pony express then the telephone replaced the telegraph. and now a days texting has replaced the telephone.
One of the first was a remote switch called a relay in 1835 by Joseph Henry. It was part of a telegraph and later used in the telephone.
Innocenzo Manzetti was the first man to idealized the first ever speaking telegraph.
The telegraph.
The American Telephone and Telegraph Company was created in 1885
Trains came much before the telegraphs
the telegraph went through many stages before becoming known as the telephone.
The symbol for Nippon Telegraph and Telephone Corporation in the NYSE is: NTT.
1844 - Innocenzo Manzetti first mooted the idea of a "speaking telegraph" (telephone). http://en.wikipedia.org/wiki/Telephone
Inventors throughout history evolved the telegraph into the telephone.
Both use electricity and radio waves to communicate.