Inventions KKH

4. an object like a box with a screen that receives electrical signals and changes them into moving images and sound; invented in the early 20th century
6. a small electronic object that is used for doing calculations; invented in 1645
7. a rounded glass container with thin metal inside that produces light when an electric current goes through it; invented around 1876
9. an object that uses a system of signals to make it possible for you to speak to someone in another place who has a similar object; invented in 1876
10. the system of connected computers around the world to share information and communicate with each other; invented in 20th century

1. thin, flat material made from wood, used for writing, printing, or drawing on; invented around 100 AD
2. a vehicle that has wings and one or more engines designed for air travel; invented in 1903
3. an object used for measuring temperature, especially of the air or in a person's body; invented in 1593
5. a vehicle with two wheels that you sit on and move by turning the two pedals; invented in 1817
8. a circular object used for making vehicles or parts of machines move; invented 3500 BC