Now you Know

13102. Invention
Invention : fiberglass
Year : 1938
Inventor : owens corning (corp.)
Country : us.

13103. Invention
Invention : film, photographic
Year : 1884
Inventor : george eastman
Country : us.

13104. Invention
Invention : flashlight, battery-operated portable
Year : 1899
Inventor : conrad hubert
Country : russia/us.

13105. Invention
Invention : flask, vacuum (thermos)
Year : 1892
Inventor : sir james dewar
Country : scotland.

13106. Invention
Invention : food processor
Year : 1971
Inventor : pierre verdon
Country : france.

13107. Invention
Invention : foods, freeze-dried
Year : 1946
Inventor : earl w. flosdorf
Country : us.

13108. Invention
Invention : foods, frozen
Year : c. 1924
Inventor : clarence birdseye
Country : us.

13109. Invention
Invention : fresnel lens
Year : 1820
Inventor : augustin-jean fresnel
Country : france.

13110. Invention
Invention : fuel cell
Year : 1839
Inventor : william r. grove
Country : uk.

13111. Invention
Invention : genetic engineering
Year : 1973
Inventor : stanley n. cohen, herbert w. boyer
Country : us.

13112. Invention
Invention : geiger counter
Year : 1908
Inventor : hans geiger
Country : germany.

13113. Invention
Invention : glass
Year : c. 2500 bc
Inventor : egyptians or phoenicians
Country : egypt or lebanon.

13114. Invention
Invention : glass, safety
Year : 1909
Inventor : edouard benedictus
Country : france.

13115. Invention
Invention : greeting card, christmas
Year : 1843
Inventor : john callcott horsley
Country : england.

13116. Invention
Invention : guillotine
Year : 1792
Inventor : joseph-ignace guillotin
Country : france.

13117. Invention
Invention : guitar, electric
Year : 1941
Inventor : les paul
Country : us.

13118. Invention
Invention : gunpowder
Year : c. 10th century
Inventor : -
Country : china or arabia.

13119. Invention
Invention : hanger, wire coat
Year : 1903
Inventor : albert j. parkhouse
Country : us.

13120. Invention
Invention : helicopter
Year : 1939
Inventor : igor sikorsky
Country : russia/us.

13121. Invention
Invention : holography
Year : 1948
Inventor : dennis gabor
Country : hungary.

>


My Account / Test History

Fact
The setting sun is redder than the rising sun because the air at the end of the day is generally dustier than it is at the beginning of the day.      .. More >>
Home
My Account
English Test
Verbal Reasoning
GK Quiz
Grammar Test