Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1890s 1800s 1900s 1880s 1890s 1800s 1900s 1880s ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1960s 1950s 1980s 1940s 1960s 1950s 1980s 1940s ANSWER DOWNLOAD EXAMIANS APP
Inventions What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892? Ouija board Ping Pong Monopoly Frisbee Ouija board Ping Pong Monopoly Frisbee ANSWER DOWNLOAD EXAMIANS APP
Inventions Which scientist discovered the radioactive element radium? Isaac Newton Albert Einstein Benjamin Franklin Marie Curie Isaac Newton Albert Einstein Benjamin Franklin Marie Curie ANSWER DOWNLOAD EXAMIANS APP
Inventions What piece of clothing was invented by French fashion designer Louis Reard in 1946? Mini-skirt Zoot suit Bikini Tank top Mini-skirt Zoot suit Bikini Tank top ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Infant carrier Bottle warmer Baby monitor Disposable diaper Infant carrier Bottle warmer Baby monitor Disposable diaper ANSWER DOWNLOAD EXAMIANS APP