1. Inventions in the 1920s
Inventions that shook the world in the 1920s and what happened to society and culture in western civilization.

2. Washing machine An early washing machine pictured here.
typically made out of wooden barrels.
later were manufactured with cheap metal.
invented in 1908 but by 1920 they were evolving quickly.
1920s washing machine ad pictured above

3. Vacuum cleaner
Originating in the 1860s the vacuum had many years to evolve
well built systems where being incorporated into design.
Drawing of a woman in the 1920s with her vacuum

4. Electric Refrigerator
Icehouses would provide cooled storage for food all year round.
in 1913 the Electric Refrigerator was invented by Fred W. Wolf.
upgraded by a number of different people until the refrigerator got to what we see today.
1920s refrigerator ad pictured above

5. Ford Model T Automobile
“I will build a motor car for the great multitude. It will be large enough for the family, but small enough for the individual to run and care for. It will be constructed of the best materials, by the best men to be hired, after the simplest designs that modern engineering can devise. But it will be so low in price that no man making a good salary will be unable to own one – and enjoy with his family the blessing of hours of pleasure in God's great open spaces.” Henry Ford.
Ford model T pictured above

6. Penicillin compounds of bacteria and fungi.
Penicillin was used to fight the spread of the bacteria from syphilis
False advertising in the 1920s was very blatant.

7. radio
The first radio was actually designed in 1895 inefficient large and quiet amplifiers
required a much more powerful circuit board to be commercialized
in the 1920s a new type of amp had to be invented
The tube amp was released and used glass tubes to physically enhance the sound of the radio and amplify its loudness
1920s radio pictured above

8. Movie Theatres
- The first Movie Theatre was invented in 1905, but became more popular in the 20’s as technology was progressing.
- They were nicknamed “picture palaces.”
- There were a series of popular theatres being made.

9. Questions 4.) What year was the radio receiver invented?
B.)1895
C.)1622
D.)1920
5.) When was the first mass produced washing machine invented?
A.) 1912
B.) 1886
C.) 1908
D.) 1924
1.) What are penicillins compounds of?
A.) bacteria and fungi
B.) metalloid and a nonmetal
C.) hydrofluoric acid and sodium
2.) How many Model T’s were ordered days after release?
A.) 20,000
B.) 13,367
C.) 12,000
D.) 15,000
3.) What was the Fridge originally called?
A.) food storage thing
B.) cooled box
C.) icehouse
D.) ice chamber

10. bibliography
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