HOW THEY MADE A MORSE CODE MACHINE Samuel F.B. Morse and Alfred Vail developed an electric telegraph which sent pulses of electrical current to control an electromagnet that was located at the receiving end of the telegraph wire.
Ooh, so close. Now we have to guess what the message was sent through. A message sent through a telegraph is a wire. A message sent through a chat room or a blog is a post. A message sent through a letter is mail.
The telegraph sent messages by wire from local to intercontinental distances, using the Morse code or long and short electrical pulses. A short letter sent by telegraph, as in the example photographed above, is a called a 'telegram', and could considered almost an early form of e-mail. The sending and receiving machines for these were called 'teleprinters'.
Telegraph meaning is a system for transmitting messages from a distance along a wire
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The noun 'telegraph' is a system for transmitting messages from a distance along a wire by creating signals by making and breaking an electrical connection. Telegraph signals are sent over wires. The verb 'to telegraph' is to send a message by telegraph.
Samuel Morse was involved in the invention of the single wire telegraph system. This system was based on the European telegraph.
The telegraph was invented in Boston, Massachusetts.
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Telegraph/telephone wire.
Many early telegraph cables were made of iron wire, but all modern ones are copper.