Questions and Answers
Who invented the Eskimo Pie ice cream?
Christian Nelson
Who invented the first jungle gym?
Sebastian Hinton
Who is credited with inventing the present-day radio/television transmission?
Ernst Alexanderson
Who invented traffic lights?
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Who was the inventor of Band-Aid?
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The first hair dryer invented in 1920 was very efficient.
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Who invented headrests for automobiles?
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Who invented the lie detector?
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Who created the flow process chart?
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Who was the inventor of the first practical retractable manual hardtop system?
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Who is credited with the invention of water skiing?
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Who invented the radial arm saw?
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Who invented the audiometer?
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Who invented the bulldozer?
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Who invented the cotton swab?
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Who invented the instant camera?
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Who invented locking pliers?
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Who is credited with the creation of the cheeseburger?
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Who invented the earth inductor compass?
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Who is believed to have developed the gas chamber execution method?
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Who invented the Moviola?
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Who invented the radio altimeter?
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Who is credited with the invention of masking tape?
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Who is associated with the invention of the Tilt-A-Whirl?
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Who invented the first practical power steering system?
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Who opened the first drive-through bank?
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Who launched the first liquid-fueled rocket?
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Who invented the pop-up toaster?
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Who built the first jukebox?
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Who is credited with the first garbage disposal?
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Who invented the pressure washer?
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Who invented the first recliner?
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Who invented the ice cube tray?
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Who invented bubble gum?
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The first bow tie was sold in the market in 1928.
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Who invented the first electric razor?
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Who invented the negative pressure ventilator, or iron lung?
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Who is credited with the invention of penicillin?
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Who invented frozen food?
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Who invented the first tampon with an applicator?
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Who began mass-producing sunglasses in 1929?
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Study Notes
Christian Nelson
- Invented the Eskimo Pie ice cream in 1920, featuring chocolate-covered vanilla ice cream in foil.
- Inspiration derived from observing a boy's indecision between chocolate and ice cream.
- Collaborated with Russell Stover for large-scale production; today marketed by Nestlé.
Sebastian Hinton
- Created the first jungle gym in 1920; also known as monkey bars or climbing frames.
- The invention became immensely popular among children.
Ernst Alexanderson
- Revolutionized radio and television transmission with a high-frequency alternator in 1920.
- His innovations enabled successful radio wave transmission, leading to a scanning disk and high-frequency neon lamp for television.
William Potts
- Detroiter and police officer who invented the first traffic lights using red, green, and amber lights in 1920.
- Installed first at the intersection of Woodward and Michigan Avenues in Detroit.
Earle Dickson
- Developed Band-Aid in 1920 from gauze and tape to aid his wife’s frequent injuries.
- Worked at Johnson & Johnson, which commercialized the product; he became Vice-President in 1924.
Hair Dryer
- The first hair dryer was invented in 1920, providing a more effective alternative to vacuum cleaner exhausts, though it had overheating issues.
Benjamin Katz
- Invented headrests in 1921, which became a standard feature in automobiles for user comfort.
- The National Highway Traffic Safety Administration required headrests in cars starting 1969.
John A. Larson
- Developed the lie detector (polygraph) in California; measures pulse and breathing to detect lies.
Frank Gilbreth
- Introduced the flow process chart in 1921 as a step-by-step diagram for program description to the American Society of Mechanical Engineers.
Ben P. Ellerbeck
- First practical retractable manual hardtop system for convertibles was envisioned in 1922; evolution led to power-operated designs in 1934.
Ralph Samuelson
- Invented water skiing in 1922, turning it into a popular sport and teaching the activity to others.
Raymond DeWalt
- Patented the first radial arm saw in 1925, primarily used for cutting long lumber; marketed as Wonder Worker.
Dr. Harvey Fletcher
- Invented the audiometer in 1922 to measure and evaluate hearing loss; became standard equipment in clinics.
James Cummings & J. Earl McLeod
- The bulldozer was invented in 1923 for efficient construction, widely used for digging canals.
Leo Gerstenzang
- Created the cotton swab in 1923, initially named "Baby Gays," later rebranded as "Q-Tips."
Samuel Shlafrock
- Developed an early version of the instant camera in 1923, leading to Edwin Land's commercial version in 1948.
William Petersen
- Invented locking pliers (Mole grips) in 1924, with further development resulting in the Mole grips model in 1955.
Lionel Sternberger
- There are conflicting claims about the creation of the cheeseburger, with some attributing it to Sternberger in 1924 or later in 1926.
Morris Titterington
- Invented the earth inductor compass in 1924, used in the aerospace industry for aircraft navigation.
State of Nevada
- Credited with introducing the gas chamber for executions, a method later infamously used during the Holocaust.
Iwan Serrurier
- Created the Moviola in 1924, allowing simultaneous film editing and playback.
Lloyd Espenschied
- Invented the radio altimeter in 1924, a device measuring the distance from an aircraft to the ground.
Richard Drew
- Developed masking tape in 1930 after identifying difficulties workers faced while painting vehicles.
Herbert Sellner
- Tilt-A-Whirl introduced in 1926 at an amusement park; became popular for its thrilling ride experience.
Francis W. Davis
- Invented the first practical power steering system, not embraced by automakers until the 1950s.
City Center Bank
- Opened the first drive-through window in 1926, paving the way for popularization in various service sectors.
Robert Hutchings Goddard
- Launched the first liquid-fueled rocket; held 214 rocketry patents.
Charles Perkins Strite
- Innovated the pop-up bread toaster in 1920, securing a patent later that year and leading to mass production in 1926.
The Automatic Music Instrument Company
- Launched the first jukebox in the 1920s, gaining popularity in the 1930s.
John W. Hammes
- Inspired the first garbage disposal in 1927, intended to mesh food waste to prevent drainage blockage.
Frank Ofeldt
- Invented the pressure washer in 1927, primarily useful in construction and car washing.
Edward Knabusch and Edwin Shoemaker
- Created the first recliner in 1928, initially made of wood, leading to later leather versions.
Lloyd Groff Copeman
- Developed the ice cube tray in 1928, revolutionizing how ice was made and served in drinks.
Walter Diemer
- Created bubble gum and marketed it as "Dubble Bubble" in the 1920s, achieving over $1.5 million in sales in its first year.
Clip-On Bow Tie
- Appeared on the market in 1928, becoming popular among police and those preferring not to tie knots.
Colonel Jacob Schick
- Invented the first electric razor in 1928, allowing for quick shaving without water or soap.
Phillip Drinker & Louis Shaw
- Developed the iron lung in 1928, crucial for aiding patients with respiratory issues, particularly polio survivors.
Sir Alexander Fleming
- Discovered penicillin, an antibiotic, though it gained popularity only post-World War I, after extensive research.
Clarence Birdseye
- Invented frozen food in 1924, patenting a preservation technique, establishing Birdseye Seafoods, Inc.
Dr. Haas
- Innovative tampon applicator developed in 1929; marketed as Tampax, becoming prevalent in menstrual care products.
Sam Foster
- Mass-produced sunglasses in 1929, increasing their popularity, particularly among pilots and in the fashion industry during the 1930s.
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Description
Explore the groundbreaking inventions of the 1920s with these informative flashcards. Discover various inventors and their contributions, including the famous Eskimo Pie. This quiz offers insights into how innovative ideas shaped the decade and influenced future developments.
