Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? 1831 1828 1825 There is no sure date 1831 1828 1825 There is no sure date ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1950s 1960s 1940s 1970s 1950s 1960s 1940s 1970s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the phonograph? Alexander Graham Bell John Kruesi Thomas Edison Jules Levy Alexander Graham Bell John Kruesi Thomas Edison Jules Levy ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Robert Hooke Edward Jenner Robert Koch Louis Pasteur Robert Hooke Edward Jenner Robert Koch Louis Pasteur ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the AEEE (now the IEEE) founded? 1930s 1850s 1950s 1880s 1930s 1850s 1950s 1880s ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Hiram Walker Charles Richter Joshua Rumble Giuseppe Mercalli Hiram Walker Charles Richter Joshua Rumble Giuseppe Mercalli ANSWER DOWNLOAD EXAMIANS APP
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