Telegraphy

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/telegraphy

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the primary technological principle?Transmission of coded electrical pulses through conductive wires
2. What is the key innovation?Morse code, a binary system of dots and dashes for encoding information
3. What is telegraphy and how does it send messages?Telegraphy is a way to send messages using electricity. A telegraph machine turns letters into short and long electrical pulses, like dots and dashes, that travel through a wire to another machine.
4. Who created the telegraph and what is Morse code?Samuel Morse invented the telegraph and made Morse code, a system that uses dots (short pulses) and dashes (long pulses) to represent letters and numbers.

Electrical Pulse: A brief surge of electrical energy used to transmit information over a wire.
Multiplexing: A technique allowing multiple signals to be transmitted over a single communication channel simultaneously.
Telecommunications: The transmission of information over distances by electronic means, including telegraphy, telephony, and the internet.