Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? There is no sure date 1825 1831 1828 There is no sure date 1825 1831 1828 ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Steam boat Rotary steam engine Hot air balloon Diving bell Steam boat Rotary steam engine Hot air balloon Diving bell ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the first controllable flying AEROPLANE (AIRPLANE)? Wright Brothers West Brothers South Brothers Lidenbergh Brothers Wright Brothers West Brothers South Brothers Lidenbergh Brothers 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 Giuseppe Mercalli Charles Richter Joshua Rumble Hiram Walker Giuseppe Mercalli Charles Richter Joshua Rumble 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 What Frank Whittle invented? Radar Ethyl gasoline Jet propulsion Sonar Radar Ethyl gasoline Jet propulsion Sonar ANSWER DOWNLOAD EXAMIANS APP
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