Across
- 6. An object that allows one to perform calculations
- 7. A device sent up into space to travel round the Earth, used for collecting information or communicating by radio, television, etc
- 9. Thanks to this invention, the mortality rate from poliomyelitis has fallen by 99 % in 10 years.
- 10. To receive or make calls around the home
- 11. Vehicle, which invented by Henry Ford, and used for the carriage by road of persons
- 12. Name the scientist who discovered the law of gravity
- 14. This solid explosive mixture used for throwing shells, rocket motion and for other purposes
- 15. To watch pre-recorder videos
Down
- 1. Rotary-wing aircraft
- 2. The greatest invention, according to us
- 3. Gadget for cooking, defrosting, reheating pre-prepared food
- 4. Thanks to this invention, a new type of pollution appeared in many cities in the 19th century
- 5. Russian scientist, who ordered chemical elements and invented vodka
- 8. A powerful narrow beam of light that can be used as a tool to cut metal, to perform medical operations, or to create patterns of light for entertainment
- 13. They were created by scientists