Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? R. Scott C. Birdsey F. Rozenosh G. Findus R. Scott C. Birdsey F. Rozenosh G. Findus ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the transistor invented? 1960s 1980s 1950s 1940s 1960s 1980s 1950s 1940s ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Elijah McCoy Ernest Just Jan Ernst Matzeliger Lewis Latimer Elijah McCoy Ernest Just Jan Ernst Matzeliger Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions For what does the world owe Almon Strowger a debt of gratitude? Automatic Telephone Exchanges Traffic Lights Parking Meters Vending Machines Automatic Telephone Exchanges Traffic Lights Parking Meters Vending Machines ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Hot air balloon Steam boat Rotary steam engine Diving bell Hot air balloon Steam boat Rotary steam engine Diving bell ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1760 1743 1785 1739 1760 1743 1785 1739 ANSWER DOWNLOAD EXAMIANS APP
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