Can you identify any specific experiments or concepts being demonstrated in the diagrams?

The diagrams appear to illustrate the following: Diagram 1 (left): Demonstrates a system of pulleys. It shows how pulleys can be used to change the direction of force and to gain mechanical advantage. Different configurations of pulleys are shown, likely to illustrate different force ratios. Diagram 2 (right): Shows a setup involving a spring scale (dynamometer) and possibly syringes. This setup could be demonstrating Hooke's Law (the relationship between force and extension of a spring) or principles of fluid mechanics or pressure, given the syringes.