Now you Know

Invention : polyethylene
Year : 1935
Inventor : eric fawcett, reginald gibson
Country : uk.

Invention : polygraph (lie detector)
Year : 1921
Inventor : john a. larson
Country : us.

Invention : polyvinyl chloride (pvc)
Year : 1872
Inventor : eugen baumann
Country : germany.

Invention : post-it notes
Year : mid-1970s
Inventor : arthur fry (3m)
Country : us.

Invention : potato chips
Year : 1853
Inventor : george crum
Country : us.

Invention : printing press, movable type
Year : c. 1450
Inventor : johannes gutenberg
Country : germany.

Invention : prozac
Year : 1972
Inventor : ray w. fuller, bryan b. molloy, david t. wong
Country : us.

Invention : radar
Year : c. 1904
Inventor : christian hulsmeyer
Country : germany.

Invention : radio
Year : 1896
Inventor : guglielmo marconi
Country : italy.

Invention : radio, car
Year : early 1920s
Inventor : william p. lear
Country : us.

Invention : rayon
Year : 1884
Inventor : louis-marie-hilaire bernigaud, count of chardonnet
Country : france.

Invention : razor, electric
Year : 1928
Inventor : jacob schick
Country : us.

Invention : razor, safety
Year : c. 1900
Inventor : king camp gillette
Country : us.

Invention : reaper, mechanical
Year : 1831
Inventor : cyrus hall mccormick
Country : us.

Invention : record, long-playing (lp)
Year : 1948
Inventor : peter carl goldmark
Country : us.

Invention : refrigerator
Year : 1842
Inventor : john gorrie
Country : us.

Invention : remote control, television
Year : 1950
Inventor : robert adler
Country : us.

Invention : respirator
Year : c. 1955
Inventor : forrest m. bird
Country : us.

Invention : revolver
Year : 1835-36
Inventor : samuel colt
Country : us.

Invention : richter scale
Year : 1935
Inventor : charles francis richter, beno gutenberg
Country : us.

Fact
The Simpsons is the longest running prime-time animated series on television history .. More >>