What is the principle of light lever
The principle of optical lever measurement is the principle of measuring micro elongation by optical lever mirror ruler method
Please explain the lever principle to me
Lever principle lever is a simple machine; a strong stick (preferably not bent and very light) can be used as a lever. In the figure above, the square represents the weight, the circle represents the support point, and the arrow represents the force point. In this way, can you see? (Figure 1) in the right side of the lever, if you force downward, the weight on the left side can be