Inventions Who invented Bifocal Lens? Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1800s 1900s 1880s 1890s 1800s 1900s 1880s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1854 1830 1835 1849 1854 1830 1835 1849 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Dynamite? Benjamin Franklin Thomas Alva Edison Sir Alexander Graham Bell Alfred B. Nobel Benjamin Franklin Thomas Alva Edison Sir Alexander Graham Bell Alfred B. Nobel ANSWER DOWNLOAD EXAMIANS APP
Inventions Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent? Banjo Clarinet Oboe Harmonium Banjo Clarinet Oboe Harmonium ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Parking Meters Traffic Lights Vending Machines Automatic Telephone Exchanges Parking Meters Traffic Lights Vending Machines Automatic Telephone Exchanges ANSWER DOWNLOAD EXAMIANS APP
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