Spirit level
device · 1661 · Early modern era
An instrument with a bubble for checking the horizontal (Thévenot).
What it is made of
- Spirit level bubble vial — has part. A vial with liquid and a bubble.
- Level frame — has part. A straight base ruler.
Principles and materials it uses
- Universal gravitation — uses. The bubble rises to the highest point.
- Glass — is made of. A glass vial.