Inventions What Sir Isaac Newton invented? Spectacles Chronometer Microscope Reflecting telescope Spectacles Chronometer Microscope Reflecting telescope ANSWER DOWNLOAD EXAMIANS APP
Inventions Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that? Golf tee Water skis Motorboat Hang glider Golf tee Water skis Motorboat Hang glider ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday Alfred B. Nobel Sir Alexander Graham Bell Thomas Alva Edison Michael Faraday ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1880s 1800s 1900s 1890s 1880s 1800s 1900s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1950s 1940s 1960s 1980s 1950s 1940s 1960s 1980s ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Hot air balloon Diving bell Rotary steam engine Steam boat Hot air balloon Diving bell Rotary steam engine Steam boat ANSWER DOWNLOAD EXAMIANS APP
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