Final answer:
The telegraph improved communication by allowing quick transmission of messages over long distances. It transformed the mail industry and played a role in the development of the railroad industry.
Step-by-step explanation:
A positive development from Samuel Morse's telegraph was the improvement in communication. Before the telegraph, people relied on slower methods such as mail or messengers to send information over long distances. The telegraph allowed messages to be sent quickly, revolutionizing communication and connecting people across large distances.
An example of this positive development is the transformation of the mail industry. With the telegraph, messages could be sent and received almost instantly, reducing the reliance on physical mail. This led to faster and more efficient communication for businesses and individuals.
Additionally, the telegraph played a crucial role in the development of the railroad industry. It provided a method for train dispatchers to communicate with each other and coordinate the movement of trains more effectively, improving safety and efficiency in railroad operations.
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