Inventions Who invented Gunpowder? G. Ferdinand Von Zeppelin Roger Bacon Sir Frank Whittle Leo H Baekeland G. Ferdinand Von Zeppelin Roger Bacon Sir Frank Whittle Leo H Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison Alfred B. Nobel Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Betatron X ray machine Cyclotron Nuclear reactor Betatron X ray machine Cyclotron Nuclear reactor ANSWER DOWNLOAD EXAMIANS APP
Inventions What Thomas Davenport invented? Electric streetcar Sleeping (railway) car Chesterfield Screw propellor Electric streetcar Sleeping (railway) car Chesterfield Screw propellor ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1960s 1950s 1970s 1980s 1960s 1950s 1970s 1980s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the AEEE (now the IEEE) founded? 1850s 1880s 1930s 1950s 1850s 1880s 1930s 1950s ANSWER DOWNLOAD EXAMIANS APP
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