13045. Invention

Invention : chewing gum (modern)
Year : c. 1870
Inventor : thomas adams
Country : us.

13046. Invention

Invention : chocolate
Year : c. 3rd-10th century
Inventor : maya, aztecs
Country : central america, mexico.

13047. Invention

Invention : chronometer
Year : 1762
Inventor : john harrison
Country : england.

13048. Invention

Invention : clock, pendulum
Year : 1656
Inventor : christiaan huygens
Country : the netherlands.

13049. Invention

Invention : clock, quartz
Year : 1927
Inventor : warren a. marrison
Country : canada/us.

13050. Invention

Invention : cloning, animal
Year : 1970
Inventor : john b. gurdon
Country : uk.

13051. Invention

Invention : coffee, drip
Year : 1908
Inventor : melitta bentz
Country : germany.

13052. Invention

Invention : coffee, decaffeinated
Year : 1905
Inventor : ludwig roselius
Country : germany.

13053. Invention

Invention : coins
Year : c. 650 bc
Inventor : lydians
Country : turkey.

13054. Invention

Invention : compact disc (cd)
Year : 1980
Inventor : philips electronics, sony corp.
Country : the netherlands, japan.

13055. Invention

Invention : compass, magnetic
Year : c. 12th century
Inventor : -
Country : china, europe.

13056. Invention

Invention : computed tomography (ct scan, cat scan)
Year : 1972
Inventor : godfrey hounsfield, allan cormack
Country : uk, us.

13057. Invention

Invention : computer, electronic digital
Year : 1939
Inventor : john v. atanasoff, clifford e. berry
Country : us.

13058. Invention

Invention : computer, laptop
Year : 1983
Inventor : radio shack corp.
Country : us.

13059. Invention

Invention : computer, personal
Year : 1974
Inventor : mits (micro instrumentation telemetry systems)
Country : us.

13060. Invention

Invention : concrete, reinforced
Year : 1867
Inventor : joseph monier
Country : france.

13061. Invention

Invention : condom, latex
Year : c. 1930
Inventor : -
Country : -.

13062. Invention

Invention : contact lenses
Year : 1887
Inventor : adolf fick
Country : germany.

13063. Invention

Invention : contraceptives, oral
Year : early 1950s
Inventor : gregory pincus, john rock, min chueh chang
Country : us.

13064. Invention

Invention : corn, hybrid
Year : 1917
Inventor : donald f. jones
Country : us.

13065. Invention

Invention : correction fluid, white
Year : 1951
Inventor : bette nesmith
Country : us.

13066. Invention

Invention : cotton gin
Year : 1793
Inventor : eli whitney
Country : us.

13067. Invention

Invention : coupon, grocery
Year : 1894
Inventor : asa candler
Country : us.

13068. Invention

Invention : crayons, children's wax
Year : 1903
Inventor : edwin binney, c. harold smith
Country : us.

13069. Invention

Invention : cream separator (dairy processing)
Year : 1878
Inventor : carl gustaf patrik de laval
Country : sweden.

13070. Invention

Invention : credit card
Year : 1950
Inventor : frank mcnamara, ralph schneider (diners' club)
Country : us.

13071. Invention

Invention : crossword puzzles
Year : 1913
Inventor : arthur wynne
Country : us.

13072. Invention

Invention : ddt
Year : 1874
Inventor : othmar zeidler
Country : germany.

13073. Invention

Invention : defibrillator
Year : 1952
Inventor : paul m. zoll
Country : us.

13074. Invention

Invention : dentures
Year : c. 700 bc
Inventor : etruscans
Country : italy.

13075. Invention

Invention : detector, metal
Year : late 1920s
Inventor : gerhard fisher
Country : germany/us.

13076. Invention

Invention : detector, home smoke
Year : 1969
Inventor : randolph smith, kenneth house
Country : us.

13077. Invention

Invention : diamond, artificial
Year : 1955
Inventor : general electric co.
Country : us.

13078. Invention

Invention : diapers, disposable
Year : 1950
Inventor : marion donovan
Country : us.

13079. Invention

Invention : digital videodisc (dvd)
Year : 1995
Inventor : consortium of international electronics companies
Country : japan, us, the netherlands.

13080. Invention

Invention : dishwasher
Year : 1886
Inventor : josephine cochrane
Country : us.

13081. Invention

Invention : dna fingerprinting
Year : 1984
Inventor : alec jeffreys
Country : uk.

13082. Invention

Invention : doughnut (ring) or donut
Year : 1847
Inventor : hanson crockett gregory
Country : us.

13083. Invention

Invention : door, revolving
Year : 1888
Inventor : theophilus von kannel
Country : us.

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.

Book
Book : grey eminence
Author : aldous huxley.      .. More >>