Now you Know

13084. Invention
Invention : drinking fountain
Year : c. 1905-1912
Inventor : luther haws, halsey w. taylor (invented separately)
Country : us.

13085. Invention
Invention : dry cleaning
Year : 1855
Inventor : jean baptiste jolly
Country : france.

13086. Invention
Invention : dynamite
Year : 1867
Inventor : alfred nobel
Country : sweden.

13087. Invention
Invention : elastic, fabric
Year : c. 1830
Inventor : thomas hancock
Country : uk.

13088. Invention
Invention : electric chair
Year : 1888
Inventor : harold p. brown, arthur e. kennelly
Country : us.

13089. Invention
Invention : electrocardiogram (ecg, ekg)
Year : 1903
Inventor : willem einthoven
Country : the netherlands.

13090. Invention
Invention : electroencephalogram (eeg)
Year : 1929
Inventor : hans berger
Country : germany.

13091. Invention
Invention : electronic mail (e-mail)
Year : 1971
Inventor : ray tomlinson
Country : us.

13092. Invention
Invention : elevator, passenger
Year : 1852
Inventor : elisha graves otis
Country : us.

13093. Invention
Invention : encyclopedia
Year : c. 4th century bc or 77 ad
Inventor : speusippus (compliation of plato's teachings) or pliny the elder (comprehensive work)
Country : greece or rome.

13094. Invention
Invention : engine, internal-combustion
Year : 1859
Inventor : etienne lenoir
Country : france.

13095. Invention
Invention : engine, jet
Year : 1930
Inventor : sir frank whittle
Country : uk.

13096. Invention
Invention : engine, liquid-fueled rocket
Year : 1926
Inventor : robert h. goddard
Country : us.

13097. Invention
Invention : engine, steam
Year : 1698
Inventor : thomas savery
Country : england.

13098. Invention
Invention : escalator
Year : 1891
Inventor : jesse w. reno
Country : us.

13099. Invention
Invention : eyeglasses
Year : 1280s
Inventor : salvino degli armati or alessandro di spina
Country : italy.

13100. Invention
Invention : facsimile (fax)
Year : 1842
Inventor : alexander bain
Country : scotland.

13101. Invention
Invention : fiber optics
Year : 1955
Inventor : narinder s. kapany
Country : india.

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

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

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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 >>
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