Inventions What Frank Whittle invented? Sonar Radar Ethyl gasoline Jet propulsion Sonar Radar Ethyl gasoline Jet propulsion ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer Ernest Just Jan Ernst Matzeliger Elijah McCoy Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Dynamite? Alfred B. Nobel Thomas Alva Edison Benjamin Franklin Sir Alexander Graham Bell Alfred B. Nobel Thomas Alva Edison Benjamin Franklin Sir Alexander Graham Bell ANSWER DOWNLOAD EXAMIANS APP
Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Bessie Blount Marjorie Joyner Mae Jamison Beulah Henry Bessie Blount Marjorie Joyner Mae Jamison Beulah Henry ANSWER DOWNLOAD EXAMIANS APP
Inventions What inspired reflecting road lights to be invented? Car door reflecting mirrors Sun light on steel posts on road sides The sun light on the windshield The light a cat's eyes gave off on a fence Car door reflecting mirrors Sun light on steel posts on road sides The sun light on the windshield The light a cat's eyes gave off on a fence ANSWER DOWNLOAD EXAMIANS APP
Inventions Who is the English physicist responsible for the 'Big Bang Theory'? Albert Einstein George Gamow Michael Skube Roger Penrose Albert Einstein George Gamow Michael Skube Roger Penrose ANSWER DOWNLOAD EXAMIANS APP
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