Inventions When was the first lawn mower invented? 1835 1854 1830 1849 1835 1854 1830 1849 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1900s 1880s 1890s 1800s 1900s 1880s 1890s 1800s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who is the English physicist responsible for the 'Big Bang Theory'? Albert Einstein Michael Skube George Gamow Roger Penrose Albert Einstein Michael Skube George Gamow Roger Penrose ANSWER DOWNLOAD EXAMIANS APP
Inventions What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892? Frisbee Ouija board Monopoly Ping Pong Frisbee Ouija board Monopoly Ping Pong ANSWER DOWNLOAD EXAMIANS APP
Inventions Which insurance salesman invented the fountain pen in 1884? Lewis Edson Waterman Sir William Grove Charles Kettering George Fountain Lewis Edson Waterman Sir William Grove Charles Kettering George Fountain ANSWER DOWNLOAD EXAMIANS APP
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