Inventions Which scientist discovered the radioactive element radium? Marie Curie Isaac Newton Benjamin Franklin Albert Einstein Marie Curie Isaac Newton Benjamin Franklin Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Inventions What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869? Blender Washing machine Electric mixer Vacuum cleaner Blender Washing machine Electric mixer Vacuum cleaner ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? MasterCharge Diner's Club Visa Discover MasterCharge Diner's Club Visa Discover ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Louis Pasteur Robert Koch Robert Hooke Edward Jenner Louis Pasteur Robert Koch Robert Hooke Edward Jenner ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Elijah McCoy Jan Ernst Matzeliger Ernest Just Lewis Latimer Elijah McCoy Jan Ernst Matzeliger Ernest Just Lewis Latimer ANSWER DOWNLOAD EXAMIANS APP
Inventions The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name? John Christopher Ballantyne Joseph Cyril Bamford John Christopher Baxter Jack Croxford Baker John Christopher Ballantyne Joseph Cyril Bamford John Christopher Baxter Jack Croxford Baker ANSWER DOWNLOAD EXAMIANS APP
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