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41
What device for new parents did Ann Moore invent in 1969?
Discuss
Answer & Solution
Answer: Option D
Solution:
Ann got the idea for the Snugli infant carrier from the traditional African baby carriers she observed while a volunteer for the Peace Corps in Africa.
42
In which decade was the transistor invented?
Discuss
Answer & Solution
Answer: Option A
Solution:
On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.
43
What invention was first installed at a Hartford, Connecticut bank in 1889?
Discuss
Answer & Solution
Answer: Option D
Solution:
William Gray, inventor of the pay telephone, also invented the inflatable chest protector worn by baseball umpires and catchers.
44
Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
Discuss
Answer & Solution
Answer: Option C
Solution:
Ralph Samuelson was only 18 when he invented water skis.
45
Who invented Bifocal Lens?
Discuss
Answer & Solution
Answer: Option C
Solution:
Benjamin Franklin invented bifocal lens.
46
What Karl Benz invented?
Discuss
Answer & Solution
Answer: Option A
Solution:
Karl Benz gets the credit for inventing the automobile because his car was practical, used a gasoline-powered internal-combustion engine and worked like modern cars do today.
47
When were bar code scanners invented?
Discuss
Answer & Solution
Answer: Option C
Solution:
The first scanning of the now-ubiquitous Universal Product Code (UPC) barcode was on a pack of Wrigley Company chewing gum in June 1974 at a Marsh supermarket in Troy, Ohio, using scanner produced by Photographic Sciences Corporation. QR codes, a specific type of 2D barcode, have recently become very popular.
48
When was the game Frisbee invented?
Discuss
Answer & Solution
Answer: Option C
Solution:
The first Frisbee were pie tins from the Frisbee Pie Company in Connecticut. In the 1950s, the pie tins were changed to plastic plates. The name then became the Flying Saucer, but later changed to Frisbee.
49
What piece of clothing was invented by French fashion designer Louis Reard in 1946?
Discuss
Answer & Solution
Answer: Option C
Solution:
The bikini, a two-piece swimsuit named for the Bikini Atoll in the Pacific, made its debut on July 5, 1946.
50
In which year was MIDI introduced?
Discuss
Answer & Solution
Answer: Option B
Solution:
The MIDI specification was published in August 1983. The MIDI standard was unveiled by Kakehashi and Smith, who received Technical Grammy Awards in 2013 for their work. In 1982, the first instruments were released with MIDI, the Roland Jupiter-6 and the Prophet 600.