Morse Code: This is a system of dots and dashes representing letters and numbers, used for sending messages via the telegraph.
Communication Revolution: This term refers to the dramatic change in how information was shared and spread due to inventions like the telegraph. It's like going from passing handwritten notes in class to group chatting on social media.
Electrical Engineering: This is a field of engineering that involves designing devices (like the telegraph) that use electricity. It's like being an architect but for gadgets instead of buildings.