The development of telephone, telegraph and telex enables us to transmit messages instantly.
The development of radio and television satellites has revolutionised the means of communication.
Advances in electronics (computers, calculators and lasers) have greatly enriched the society.
Rapid means of transport are important for the society.
Generation of power from nuclear reactors is based on the phenomenon of controlled nuclear chain reaction.
Digital electronics is widely used in modern technological developments.
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