Across
- 2. A global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
- 5. Who discovered penicillin?
- 6. A device or drug serving to prevent pregnancy
- 9. A device for recording visual images in the form of photographs, film, or video signals.
- 11. A mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form.
- 12. A remote-controlled pilotless aircraft or small flying device.
- 16. The action or process of making a physical object from a three-dimensional digital model, typically by laying down many thin layers of a material in succession.
- 19. Services available via a remote cloud computing server rather than an on-site server.
- 20. Product that contains nicotine.
- 21. A container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.
Down
- 1. A four-wheeled road vehicle that is powered by an engine and is able to carry a small number of people.
- 3. Who invented lightbulb?
- 4. Alexander Graham Bell's famous invention
- 7. A substance used to stimulate the production of antibodies and provide immunity against one or several diseases
- 8. A covering for all or part of the face, worn as a disguise, or to amuse or terrify other people.
- 10. An electronic device for reading digital books and periodicals
- 13. A machine resembling a human being and able to replicate certain human movements and functions automatically.
- 14. Instrument containing a magnetized pointer which shows the direction of magnetic north and bearings from it
- 15. A small metal spike with a broadened flat head, driven typically into wood with a hammer to join things together or to serve as a peg or hook.
- 17. Websites and applications that enable users to create and share content or to participate in social networking.
- 18. Bomb used in Hiroshima and Nagasaki bombing