Now you Know

12985. Invention
Invention : air conditioning
Year : 1902
Inventor : willis haviland carrier
Country : us.

12986. Invention
Invention : airbag, automotive
Year : 1952
Inventor : john hetrick
Country : us.

12987. Invention
Invention : airplane, engine-powered
Year : 1903
Inventor : wilbur & orville wright
Country : us.

12988. Invention
Invention : airship
Year : 1852
Inventor : henri giffard
Country : france.

12989. Invention
Invention : alphabet
Year : c. 1700-1500 bc
Inventor : semitic-speaking peoples
Country : eastern coast of mediterranean sea.

12990. Invention
Invention : american sign language
Year : 1817
Inventor : thomas h. gallaudet
Country : us.

12991. Invention
Invention : animation, motion-picture
Year : 1906
Inventor : j. stuart blackton
Country : us.

12992. Invention
Invention : answering machine, telephone
Year : 1898
Inventor : valdemar poulsen
Country : denmark.

12993. Invention
Invention : aspartame
Year : 1965
Inventor : james schlatter
Country : us.

12994. Invention
Invention : aspirin
Year : 1897
Inventor : felix hoffmann (bayer)
Country : germany.

12995. Invention
Invention : assembly line
Year : 1913
Inventor : henry ford
Country : us.

12996. Invention
Invention : astrolabe
Year : c. 2nd century
Inventor : -
Country : -.

12997. Invention
Invention : astroturf
Year : 1965
Inventor : james m. faria, robert t. wright
Country : us.

12998. Invention
Invention : audiotape
Year : 1928
Inventor : fritz pfleumer
Country : germany.

12999. Invention
Invention : automated teller machine (atm)
Year : 1968
Inventor : don wetzel
Country : us.

13000. Invention
Invention : automobile
Year : 1889
Inventor : gottlieb daimler
Country : germany.

13001. Invention
Invention : baby food, prepared
Year : 1927
Inventor : dorothy gerber
Country : us.

13002. Invention
Invention : bag, flat-bottomed paper
Year : 1870
Inventor : margaret knight
Country : us.

13003. Invention
Invention : bakelite
Year : 1907
Inventor : leo hendrik baekeland
Country : us.

13004. Invention
Invention : ball bearing
Year : 1794
Inventor : philip vaughan
Country : england.

>


My Account / Test History

Fact
Balance of trade
The difference between the value of imports and exports. It is favourable when the value of exported goods exceeds the value of imported goods. If it is reverse balance is unfavourable.      .. More >>
Home
My Account
English Test
Verbal Reasoning
GK Quiz
Grammar Test