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.
The astronomer Ptolemy developed the concept of standardized time measurement using which method?
dripping water through a small whole
placing a slanted object parallel to the axis of the Earth
burning a candle in a place with no breeze
In which century was the mechanical clock invented?
Where was the first sewer network created?
In the 16th century, Sir John Harington created which luxury item?
the modern toilet
the water closet
Carl von Linden used which method to build the modern refrigerator?
building a special insulated box and packing it with ice
developing a process that changed gas into liquid
using a fan system to blow heat away
Which was the first company to mass-produce refrigerators?
What does an agitator have to do with washing clothes?
It's the paddles in a tub of water that are manually turned.
It's the rendered animal fat used to remove stains.
It's the wooden boards that clothes are scrubbed against.
During the final spin, how fast can the drum of a washing machine rotate?
70 mph (112 kph)
80 mph (128 kph)
90 mph (144 kph)
About how long did it take for telephones to progress from switchboard systems to wireless satellite technology?
Who is responsible for the creation of the Internet?
Alexander Graham Bell
Centers for Disease Control and Prevention
What sort of material did Thomas Edison use to record sound waves in his phonograph?
How does MP3 recording software evaluate sound?
compares decibels at different distances to the recorder
through binary code
relative to the range of human hearing
Which world event brought the benefits of TV to people's attention?
the Japanese surrender in World War II
man walking on the moon
assassination of Gandhi
How many TV sets are there in the world today?
Why was the first air conditioner built?
to cool a printing plant
to cool a town hall
to cool a movie theater
What was the brand name of the first home air conditioner?
What type of waves does a microwave oven use?
Which food was involved in the accidental discovery that led to the building of the microwave oven?
What were the dimensions of the computers used by the U.S. Navy in World War II?
10 feet by 8 feet (3 meters by 2.4 meters)
25 feet by 8 feet (7.6 meters by 2.4 meters)
55 feet by 8 feet (16.7 meters by 2.4 meters)
The development of which device enabled computers to become accessible to the public?