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  • Question

  • Who Invented Contact Lens ?


  • Options
  • A. Joel Houghton
  • B. Ruth Graves Wakefield
  • C. Adolf Gaston Eugen Fick
  • D. John Stith Pemberton

  • Correct Answer
  • Adolf Gaston Eugen Fick 

    • Inventions problems

    Search Results

    • 1. What Henry Bessemer invented?

    • Options
    • A. Aluminum
    • B. Electroplating
    • C. Steel Converter
    • D. Steel rolling mill
      • Discuss
    • 2. What Frank Whittle invented?

    • Options
    • A. Radar
    • B. Ethyl gasoline
    • C. Sonar
    • D. Jet propulsion
      • Discuss
    • 3. Roentgen discovered

    • Options
    • A. Electrocardiograph
    • B. X?rays
    • C. Anti polio vaccine
    • D. Encephalograph
      • Discuss
    • 4. Who is often called the 'first African-American' inventor?

    • Options
    • A. Bessie Blount
    • B. George Washington Carver
    • C. Benjamin Banneker
    • D. Elijah McCoy
      • Discuss
    • 5. Air conditioner was discovered by

    • Options
    • A. Edison
    • B. Wilson
    • C. Carrier
    • D. Roentgen
      • Discuss
    • 6. Who Invented Worldwide Standard Time Zones ?

    • Options
    • A. Charles Richard Drew
    • B. Henry W. Seely
    • C. Jesse Wilford Reno
    • D. Sir Sandford Fleming
      • Discuss
    • 7. In which year was the first solid state integrated circuit demonstrated?

    • Options
    • A. 1970s
    • B. 1960s
    • C. 1950s
    • D. 1980s
      • Discuss
    • 8. Who invented the BALLPOINT PEN?

    • Options
    • A. Write Brothers
    • B. Waterman Brothers
    • C. Biro Brothers
    • D. Bicc Brothers
      • Discuss
    • 9. What drink was invented by Charles Leiper Grigg in 1929?

    • Options
    • A. 7-Up
    • B. Yoo-Hoo
    • C. Pepsi
    • D. Hawaiian Punch
      • Discuss
    • 10. What item, originally called the ?Whirlwind?, was invented by Ives McGaffey in 1869?

    • Options
    • A. Blender
    • B. Electric mixer
    • C. Washing machine
    • D. Vacuum cleaner
      • Discuss

    Comments

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    Jacob Lewis
    Hi, Are you still in business? I found a few errors on your site. Would you like me to send over a screenshot of those errors?
    Avatar
    Jacob Lewis
    Hi, Are you still in business? I found a few errors on your site. Would you like me to send over a screenshot of those errors? Regards Jacob (714) 500-7363
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