Answer :
Alexander Graham Bell improved upon the telegraph by inventing the telephone, which enabled voice communication over long distances, allowing for more natural and immediate conversations.
Limitations of the Telegraph:
- Written Communication Only: The telegraph allowed for the transmission of coded messages (Morse code) over wires but relied on written text, which could be slow to send and required interpretation by the receiver.
- Delayed Response: Communication via telegraph often involved a delay, as users had to wait for a message to be sent, received, and then interpreted before a reply could be crafted and sent back.
- Complexity of Use: The telegraph required knowledge of Morse code, making it less accessible to the general public and limiting its use.
Bell's Vision for Communication:
- Bell's interest was in transmitting human voice, which he believed could provide a more direct and personal form of communication.
- He envisioned a device that would allow people to talk to one another over distances, capturing the nuances of speech rather than just the content of a message.
- Bell studied the mechanics of sound and speech, experimenting with the vibration of vocal cords and how these vibrations could be converted into electrical signals.
Invention of the Telephone:
- On March 10, 1876, Bell successfully transmitted the first intelligible sentence over his telephone, famously saying, "Mr. Watson, come here, I want to see you." This marked a breakthrough in real-time voice communication.
- Bell improved upon existing telegraph technology by applying electromagnetic theory to create a device that converted sound waves into electrical signals.
