Reading
Peter is writing an e-mail to the "English Bridge".
Peter tells about Alexander Bell, the inventor of the telephone.
AAlexander Bell was an eglishman but moved to the USA.
The telephone was invented accidentally by the father of one of his pupils.
The first telephone exchange that connected 21 people happened in the 18th century.
The first communicaion satellite was launched in the 19th century.
Julia writes a letter about the invention of the clock.
The first accurate clock was designed in the 14th century.
Mechanic clocks had minute and second hands in the 14th century.
Shadow clocks and water clocks were developed in the Egypt.
Sand clocks are still used.
Wrisrwatches were made mainly in France and Switzerland.
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