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ID number:893096
 
Evaluation:
Published: 18.01.2019.
Language: Latvian
Level: Elementary school
Literature: 2 units
References: Used
Extract

*Lāzeris, 1960. gads.
Elektroniski optiska ierīce, kas izstaro koherentu starojumu
Fizikā – galvenais instruments fotofizikālo un fotoķīmisko procesu pētīšanā, izmanto plazmas diagnostikā u.c. (5)

*Mobilais telefons, 1977. gads
Bezvadu ierīce balss un datu pārraidei lielos attālumos
Izgudrotājs – Martins Kupers
Motorola DynaTAC 8000X
Latvijā mobilo sakaru ēra sākās 1992. gadā(4)

Secinājumi
Progresa gadsimts
Daudz izgudrojumu
Palielinājās cilvēku komforta līmenis

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