Inventions Who invented Gunpowder? G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon ANSWER DOWNLOAD EXAMIANS APP
Inventions What furniture item was invented by California furniture designer Charles Prior Hall in 1968? Captain's chair Sofa bed Hammock Waterbed Captain's chair Sofa bed Hammock Waterbed ANSWER DOWNLOAD EXAMIANS APP
Inventions What inspired reflecting road lights to be invented? The light a cat's eyes gave off on a fence Sun light on steel posts on road sides The sun light on the windshield Car door reflecting mirrors The light a cat's eyes gave off on a fence Sun light on steel posts on road sides The sun light on the windshield Car door reflecting mirrors ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? C. Birdsey G. Findus F. Rozenosh R. Scott C. Birdsey G. Findus F. Rozenosh R. Scott ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first elevator built? 1785 1743 1760 1739 1785 1743 1760 1739 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the AEEE (now the IEEE) founded? 1950s 1930s 1850s 1880s 1950s 1930s 1850s 1880s ANSWER DOWNLOAD EXAMIANS APP
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