Karl Ferdinand Braun

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/karl-ferdinand-braun

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. When was Karl Ferdinand Braun born?June 6, 1850
2. Where was Karl Ferdinand Braun born?Fulda, Electorate of Hesse (now Germany)
3. What is the career?Professor of physics at universities in Germany, including Strasbourg and Tübingen
4. Who was Karl Ferdinand Braun?Karl Ferdinand Braun was a German inventor and physicist born in 1850. He created important devices like the cathode ray tube and helped develop early radio communication.
5. What is a cathode ray tube and why is it important?A cathode ray tube uses a beam of electrons to light up a screen. It was the first step toward making televisions and computer monitors.

Cathode Ray Tube (CRT): A vacuum tube that uses a beam of electrons to create a visual display on a phosphorescent screen.
Wireless Telegraphy: The transmission of information over distances without the use of physical conductors, typically using radio waves.
Electromagnetic Waves: Waves of the electromagnetic field, propagating through space, carrying radiant energy.
Oscilloscope: An electronic test instrument that graphically displays varying signal voltages, typically as a two-dimensional plot of one or more signals as a function of time.