Science and Technology

1. chinese made toys, machines houses and other things out of this.
3. Labor-saving device that allowed the employment of small and efficient work teams on construction sites. Later winches were added for heavy weights.
4. this is made of special white clay which has a lot of kaolin in it.
7. it is made by mixing sulphur, charcoal and potassium nitrate.
10. flying machine that was first invented by china.
12. was the head of the astronomical observatory at Ujjain.
14. an Egyptian writing.
16. described the motions of the Sun and the Moon in his book.
18. it stands as the world's greatest domed building constructed during Ancient Greek's time.
19. a stone statue with the king's head and a lion's body to guard the pharao's tomb.

1. were invented in India and various historical evidences and excavations prove that it was used by the people belonging to the Indus Valley Civilization.
2. a civilization also known as Minoan Civilization.
5. the world's first writing system.
6. are basically and driven vehicles with two handles on the rear side fir a person to push ahead.
8. is believed to be a Sumerian invention.
9. became the first Indian to go to outer space.
11. was the ancient region bordering the Tigris and Euphrates river.
13. a science of medicine owes its origins in ancient India.
15. they are the one who invented the world's first writing system.
17. the land of Arab.