# ฌอง_เบอร์นาร์ด_ลีออง_ฟูโกต์
## Noun (N)
### Sense: French physicist who determined the speed of light and showed that it travels slower in water than in air; invented the Foucault pendulum and the gyroscope (1819-1868)
- Foucault
- Jean Bernard Leon Foucault