Now you Know
13025. Invention
Invention : calculator, electronic hand-held
Year : 1967
Inventor : jack s. kilby
Country : us.
13026. Invention
Invention : calculus
Year : 1680s
Inventor : sir isaac newton and gottfried wilhelm leibniz (invented separately)
Country : england and germany (respectively).
13027. Invention
Invention : calendar, modern (gregorian)
Year : 1582
Inventor : pope gregory xiii
Country : italy.
13028. Invention
Invention : camcorder
Year : 1982
Inventor : sony corp.
Country : japan.
13029. Invention
Invention : camera, motion picture
Year : 1891
Inventor : thomas alva edison, william k.l. dickson
Country : us.
13030. Invention
Invention : camera, portable photographic
Year : 1888
Inventor : george eastman
Country : us.
13031. Invention
Invention : can, metal beverage
Year : 1933
Inventor : american can co.
Country : us.
13032. Invention
Invention : can opener
Year : 1858
Inventor : ezra j. warner
Country : us.
13033. Invention
Invention : candle
Year : c. 3000 bc
Inventor : -
Country : egypt, crete.
13034. Invention
Invention : canning, food
Year : 1809
Inventor : nicolas appert
Country : france.
13035. Invention
Invention : carbon-14 dating
Year : 1946
Inventor : willard f. libby
Country : us.
13036. Invention
Invention : cardboard, corrugated
Year : 1871
Inventor : albert jones
Country : us.
13037. Invention
Invention : cards, playing
Year : c. 10th century
Inventor : -
Country : china.
13038. Invention
Invention : cash register
Year : 1879
Inventor : james ritty
Country : us.
13039. Invention
Invention : cat litter
Year : 1947
Inventor : edward lowe
Country : us.
13040. Invention
Invention : catalog, mail-order
Year : 1872
Inventor : aaron montgomery ward
Country : us.
13041. Invention
Invention : cellophane
Year : 1911
Inventor : jacques e. brandenberger
Country : switzerland.
13042. Invention
Invention : celluloid
Year : 1869
Inventor : john wesley hyatt
Country : us.
13043. Invention
Invention : cement, portland
Year : 1824
Inventor : joseph aspdin
Country : england.
13044. Invention
Invention : cereal flakes, breakfast
Year : 1894
Inventor : john harvey kellogg
Country : us.
My Account / Test History
Fact
In 1930, the heaviest a female flight attendant could be was 115 pounds. They also had to be unmarried nurses.
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