1 Igihe
5 Igice
Histoire des mesures de la vitesse de la lumière
- Umwaka: 2006
- Igihugu: France
- Ubwoko: Documentary
- Sitidiyo:
- Ijambo ryibanze: speed, light, measurement, history, science, lightspeed
- Umuyobozi:
- Abakinnyi:
"
