Discussion
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- Question
Landstrom invented
Options- A. Metallurgy
- B. Gas Engine
- C. Safety Match
- D. None of these
- Correct Answer
- Safety Match
- 1. Who had an explosive idea and first patented DYNAMITE?
Options- A. J. R. Gluber
- B. A. Nobel
- C. G. Fawks
- D. W. Bickford Discuss
- 2. Who was the first person to patent the JET ENGINE?
Options- A. F. Whittle
- B. C. Lindbergh
- C. W. Histell
- D. B. Owings Discuss
- 3. Who invented Electrocardiograph(EKG)? Discuss
- 4. Who invented Bifocal Lens?
Options- A. John Adams
- B. Benjamin Franklin
- C. James Madison
- D. Thomas Jefferson Discuss
- 5. Who invented Dynamite?
Options- A. Graham Bell
- B. Nikola Tesla
- C. Alfred Nobel
- D. Louis Pateur Discuss
- 6. Who dicovered X-rays? Discuss
- 7. Atomic theory was devised by
Options- A. Mosley
- B. John Dalton
- C. Daimler
- D. None of these Discuss
- 8. The cause of Beri Beri was discovered by
Options- A. Eijkman
- B. Macmillan
- C. Alexanderson
- D. Cockrell Discuss
- 9. Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
Options- A. Golf tee
- B. Motorboat
- C. Water skis
- D. Hang glider Discuss
- 10. What charge card, developed in 1950, was the first to be approved nationally in the US?
Options- A. Discover
- B. MasterCharge
- C. Visa
- D. Diner's Club Discuss
Inventions problems
Search Results
Correct Answer: A. Nobel
Correct Answer: F. Whittle
Correct Answer: The EKG was invented by Willem Einthoven in 1903 and is used to monitor and analyze past and present heart activity in an individual
Correct Answer: Benjamin Franklin
Explanation:
Benjamin Franklin has long been credited with the invention of bifocal lenses and he was the first to wear bifocal lenses. He did not produce them himself but instead had some optician in London or France make them for him to overcome Presbyopia, a condition that Franklin suffered. He was tired switching between lenses for far and near sightedness. And that resulted in inventing Bifocal Lenses.
Correct Answer: Alfred Nobel
Explanation:
Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. Known for inventing Dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel producer to a major manufacturer of cannon and other armaments.
Correct Answer: In 1985 the physicist Wilhelm Rontgen discovered X-rays, the "X" signifying their unknown originHe later found that the rays could pass through flesh and by using photographic plates could make images of bones inside the body
Correct Answer: John Dalton
Correct Answer: Eijkman
Correct Answer: Water skis
Correct Answer: Diner's Club
Explanation:
The card was established by Frank McNamara and Ralph Schneider.
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