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ID number:735848
 
Evaluation:
Published: 16.05.2008.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

1.Kādi eksperimenti un kādi zinātnieki tos ir veikuši, kas liecina par gaismas ātruma nemainību?
Jau 16. gadsimtā, kad laiku vēl mērīja ar ūdens un smilšu pulksteņiem, Galileo Galilejs mēģināja noteikt gaismas ātrumu. Divi viņa palīgi ar sveču lukturiem nostājās viens otram pretī uz vairākus kilometrus attāliem uzkalniem. Norunāja, ka viens paceļ luktura aizbīdni un uzspīdina gaismu otram. Un tas dara to pašu — tikko ierauga gaismas spīdēšanu, noraida gaismu atpakaļ pirmajam. …

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