Inventions
1) Refrigerator
Refrigerator keeps food and drink cool. Cool food stays fresher for longer.
1) Before refrigerators were invented, we kept food cool with large blocks of ice.
2) In 1890, refrigerators were invented.
An electric refrigerator was invented during the modern days
3) Between 1912-1915, Clarence Birdseye began to freeze food to keep it fresh for longer.
2) Radio
We must have radio to listen to the music and news.
The first radio were invented
1) The first radio were made in the 1920s and only made a faint sound.
Portable radio with high tech technology
2) In the 1950s portable radios became possible.
3) Clock
We need clock to know the time.
A grandfather pendulum clock
1) A grandfather pendulum clock were made around 1670 in London.
Clock with quartz chip
2) In 1929, quartz chips were used in clocks.
4) Television
Television brings pictures and sounds from all over the world into our homes to learn and relax.
Black and white picture television
1) Television began in the 1930s. Early sets had a tiny screen showing black and white pictures. RTM(Radio Televisyen Malaysia) was started TV programs in 1963 in black and white.
A colour television
2) In 1960s, television was being broadcast in colour. However, RTM was being broadcast TV programs in 1973.
5) Camera
We use cameras to take photographs is an easy way to keep a record we have seen.
1) Cameras were invented in 1839. We took photographs on coated paper or glass and it's very slow!
2) In 1889, the first portable Kodak cameras were invented. We use new kind of film. This is fast andd cheap.
A modern camera is digital.
3) Modern cameras are extremely accurate and it's digital. We can also take photos in the dark and underwater.
6) Telephone
Telephone makes it possible for you to talk to your family/friends/teachers/headmasters/workers/managers over the world.
An old phone
1) A telephone was invented in 1875 by Alexander Bell.
A modern corded phone called keyphone
2) A modern corded telephone called keyphone. We use buttons to dial.
7) Record player
An old gramophone
1) An old gramophone were invented in 1877. Gramophone records introduced in 1894.
Turntable
A portable record player
2) A modern record player produced clear sound and play music in stereo. We also called turntable. Some record players are portable.
8) Typewriters
We used typewriters to write documents faster than handwriting.
An old typewriter
1) Typewriters invented in the 1870s.
An electronic typewriter is modern
2) An electronic typewriters some people can type 90words/min.