De quoi est fait quadrant
An angle gauge for measuring the altitude of celestial bodies.
- Quarter circle with degree scale — a pour partie. A scale from 0 to 90°.
- Sighting vanes — a pour partie. A sight for the celestial body.
- Plumb bob — a pour partie. A plumb line shows the vertical.
- Universal gravitation — utilise. The angle is read against a plumb line.
- Bronze — est fait de. Quadrants are bronze or wooden.