# Fizeau–Foucault apparatus

> scientific instrument used to measure the speed of light

**Wikidata**: [Q143885](https://www.wikidata.org/wiki/Q143885)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Fizeau's_measurement_of_the_speed_of_light_in_air)  
**Source**: https://4ort.xyz/entity/fizeau-foucault-apparatus


## References

1. Freebase Data Dumps. 2013
2. KBpedia