përjetësi

përjetësi

In astronomical terms, a unit of time equivalent to 1 billion years.

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Secteur d’activité/Domaine : Astronomie
Catégorie : l'astronomie générale
Company: Caltech
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Secteur d’activité/Domaine : Communication Catégorie : Communication écrite

letër

Letra është një mesazh i shkruar në material. Në ditët e sotme është e pazakontë të përdorin këtë mënyrë për të komunikuar (përveç për çështje zyrtare ...