Obsolete Invention

1. a machine with keys for producing alphabetical characters, numerals, and typographical symbols one at a time on paper inserted round a roller
4. a timing device with two connected glass bulbs containing sand that takes an hour to pass from the upper to the lower bulb
6. used as a washing tool in the 19th century
7. a type of gun with a lock in which a piece of wick or cord is placed for igniting the powder
8. an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day
11. the earliest known device to record sound

2. an early form of gramophone using cylinders and able to record as well as reproduce sound.
3. a home video format and the first commercial optical disc storage medium
5. a portable cassette player that allowed people to listen to music of their choice on the move
9. an electric monowheel vehicle invented back in 1930
10. a casette used in the 19th century in the format of magnetic tapes