What davis quadrant is made of
An angle gauge that let the navigator avoid looking at the Sun.
- Small arc scale — has part. A scale for large angles.
- Large arc scale — has part. A scale for small angles.
- Shadow vane — has part. It casts the Sun’s shadow onto the slit.
- Trigonometry — uses. The Sun’s altitude is found from the angle of a shadow.
- Wood — is made of. The Davis quadrant is wooden.