Thursday, December 3, 2020

ANSWERS TO YESTERDAY'S QUESTIONS



Question 1:  
Who was the inventor of the vacuum cleaner?

Answer:
Ives W. McGaffey devised the first vacuum cleaner in 1869.  He called his crank-operated machine The Whirlwind.  In 1901 Englishman Hubert Cecil Booth invented a large, horse-drawn unit powered by a gasoline engine, with long hoses fed through the windows.  J. Murray Spangler of Canton, Ohio, invented the first functioning portable electric vacuum cleaner in 1907.  It was built by the Hoover Company of New Berlin, Ohio, who rolled out their first electric Model O in 1908.



Question 2: 
Who invented blue jeans?

Answer:
Jacob Davis, a Nevada tailor, came up with the idea of placing metal rivets on the denim at the points of strain.  In 1873 he and Levi Strauss patented the process.


Question 3: 
Did Elisha Graves Otis invent the elevator?

Answer:
No, hoists already existed.  But in 1853, Otis invented the elevator brake so that they wouldn't fall - obviously, a necessary improvement.


Question 4:
Who invented the computer mouse?

Answer:
Among Douglas C. Engelbart's two dozen patents, is one for a "K-Y Position for a Display System," which is a prototype for the mouse.  Although the device was invented in 1968, Engelbart's brainchild was not popularized until Apple used it in 1984.




33 comments:

  1. Interesting. I'll bet Davis and Strauss never imagined that ripped jeans would be high fashion.

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  2. I didn't get even ONE right!!! Your photo is gorgeous! Forget the bird, it is the golden sand that is the star of the picture!!

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    1. It's easy for me, I have all the answers :) Thank you Ginny, happy you enjoyed the photo too!

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  3. Well these are interesting and for some reason I didn't see your post yesterday! Time difference maybe.

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    1. Glad you saw today's post Margaret :) Having relatives in Europe I completely understand about the time difference.

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  4. I've read before about all of the inventions except the mouse - not that I retain it!

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  5. I had part of one answer right! Take care, have a happy day!

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    1. That's great Eileen, you have a happy day also :)

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    1. Dziękuję bardzo :) Cieszę się, że jest to interesujące :)

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  7. These are all so interesting. Definitely a good thing Otis came on the scene, I would hate to think how elevators would be otherwise lol!

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    1. Thanks Martha, that last sentence made me smile :)

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  8. I really admire these brilliant inventors, thanks for sharing this interesting information.

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    1. Me too, and you are very welcome :) Thank you Christine!

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  9. Wow these are all interesting especially that one about the mouse

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  10. Hi Denise,
    another very interesting quiz of which I managed to get two correct, must try harder. When you thick of all the previous inventions and all that are still going on it blows your mind.
    You stay safe,
    John

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    1. That's why I enjoy these quizzes John. I love learning this kind of trivia. Glad you enjoyed :) You stay safe too :)

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  11. Replies
    1. Thumb's up! It's easy when you have the book (me) :)))

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  12. thank you for sharing the answers.... useful for me.

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  13. Sorry Denise, I missed these posts ...
    I do like the image you've used here though.

    Happy December Wishes.

    All the best Jan

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    1. No problem Jan, so much out there to see and always fun to catch up :) Happy December wishes to you too :) All the best!

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  14. Interesting.. I need to go back and see if you have posted more questions.

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    1. Thank you Rose, can look at the label at the bottom of the post :)

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  15. I am a little late replying to comments but I will catch up over the weekend 😊🎄

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  16. The gasoline vacuum cleaner sounds like something only used in direst of circumstances. I am so glad they have improved to what they are today.

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    1. I agree, it must have seemed a wonderful piece of technology back then and they certainly have evolved. Thanks Rose :)

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