There are so many appliances and tools we use today that we take for granted, yet for centuries people went without them. Imagine a world without toilets, refrigerators or computers! Take this quiz to see how much you know about the history of the appliances you couldn't do without.
Question 1 of 20
The astronomer Ptolemy developed the concept of standardized time measurement using which method?
Question 2 of 20
In which century was the mechanical clock invented?
Question 3 of 20
Where was the first sewer network created?
Question 4 of 20
In the 16th century, Sir John Harington created which luxury item?
Question 5 of 20
Carl von Linden used which method to build the modern refrigerator?
Question 6 of 20
Which was the first company to mass-produce refrigerators?
Question 7 of 20
What does an agitator have to do with washing clothes?
Question 8 of 20
During the final spin, how fast can the drum of a washing machine rotate?
Question 9 of 20
About how long did it take for telephones to progress from switchboard systems to wireless satellite technology?
Question 10 of 20
Who is responsible for the creation of the Internet?
Question 11 of 20
What sort of material did Thomas Edison use to record sound waves in his phonograph?
Question 12 of 20
How does MP3 recording software evaluate sound?
Question 13 of 20
Which world event brought the benefits of TV to people's attention?
Question 14 of 20
How many TV sets are there in the world today?
Question 15 of 20
Why was the first air conditioner built?
Question 16 of 20
What was the brand name of the first home air conditioner?
Question 17 of 20
What type of waves does a microwave oven use?
Question 18 of 20
Which food was involved in the accidental discovery that led to the building of the microwave oven?
Question 19 of 20
What were the dimensions of the computers used by the U.S. Navy in World War II?
Question 20 of 20