logo

CuriousTab

CuriousTab

Discussion


Home General Knowledge Inventions See What Others Are Saying!
  • Question
  • What Benjamin Franklin invented?


  • Options
  • A. Bifocal spectacles
  • B. Radio
  • C. Barometer
  • D. Hygrometer

  • Correct Answer
  • Bifocal spectacles 

    Explanation
    Invented in 1760.

    A list of Benjamin Franklin's inventions reveals a man of many talents and interests. It was the scientist in Ben that brought out the inventor. His natural curiosity about things and the way they work made him try to find ways to make them work better.

    Ben had poor vision and needed glasses to read. He got tired of constantly taking them off and putting them back on, so he decided to figure out a way to make his glasses let him see both near and far. He had two pairs of spectacles cut in half and put half of each lens in a single frame. Today, we call them bifocals.

  • More questions

    • 1. When was the first elevator built?

    • Options
    • A. 1743
    • B. 1739
    • C. 1760
    • D. 1785
    • Discuss
    • 2. The hardest form of carbon is

    • Options
    • A. coke
    • B. graphite
    • C. diamond
    • D. charcoal
    • Discuss
    • 3. The mica belt of the Himalayas, the major part of it is situated in

    • Options
    • A. Andhra Pradesh
    • B. Bihar
    • C. Rajasthan
    • D. West Bengal
    • Discuss
    • 4. The first 'Financial Service Park' for industry being set up at

    • Options
    • A. Guragaon
    • B. Surat
    • C. Bangalore
    • D. Pune
    • Discuss
    • 5. http://www.CuriousTab.com - is an example of what?

    • Options
    • A. A URL
    • B. An access code
    • C. A directory
    • D. A server
    • Discuss
    • 6. First human heart transplant operation conducted by Dr. Christiaan Barnard on Louis Washkansky, was conducted in

    • Options
    • A. 1967
    • B. 1968
    • C. 1958
    • D. 1922
    • Discuss
    • 7. The working language(s) of the UNESCO is/are

    • Options
    • A. French only
    • B. English only
    • C. English and French
    • D. English, French and Russian
    • Discuss
    • 8. 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
    • 9. Rahul Dravid also made Test debut along with Sourav Ganguly in the same match.He scored 95 runs. How many fours did he hit in that innings of 95 runs?

    • Options
    • A. 6
    • B. 10
    • C. 5
    • D. 7
    • Discuss
    • 10. The smallest glaciers are

    • Options
    • A. mountain or alpine glaciers
    • B. continental glaciers
    • C. piedmont glaciers
    • D. None of the above
    • Discuss


    Comments

    There are no comments.

Enter a new Comment