High-speed telegraphy is a way for people to send messages quickly over long distances. Before the internet, the telegraph was the fastest way to send messages from one place to another. With high-speed telegraphy, people can send messages almost instantly! Messages travel in the form of electrical signals that are sent through wires. The wires carry the electrical signals creating vibrations, like music! When people use high-speed telegraphy they can send messages almost instantly, so they can talk to people far away just like they were talking right next to them!