Inventions In which decade was the first solid state integrated circuit demonstrated? 1950s 1980s 1960s 1970s 1950s 1980s 1960s 1970s ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Marie Curie Albert Einstein Isaac Newton Benjamin Franklin Marie Curie Albert Einstein Isaac Newton Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Blender Vacuum cleaner Washing machine Electric mixer Blender Vacuum cleaner Washing machine Electric mixer ANSWER DOWNLOAD EXAMIANS APP
Inventions What Thomas Davenport invented? Chesterfield Sleeping (railway) car Electric streetcar Screw propellor Chesterfield Sleeping (railway) car Electric streetcar Screw propellor ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gramophone? Fahrenheit Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison Fahrenheit Sir Alexander Graham Bell Michael Faraday Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? George Fountain Lewis Edson Waterman Sir William Grove Charles Kettering George Fountain Lewis Edson Waterman Sir William Grove Charles Kettering ANSWER DOWNLOAD EXAMIANS APP
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