[aetzbar (OP)]

Interdisciplinary science, the similarity between geometry and physics

The ruler shows us a real length, like 12.75 cm
The angle meter gives a number of geometric ratio. (12 degrees = 12 \ 360)

The spring measures passive energy (like 2 kg)
The scales measure a physical ratio (energy / time)

The scales in the horizontal position mean: physical ratio = physical ratio

New physics:
A spring is like a ruler, and an angle meter is similar to a scale
In the new physics, only energy and time are measured.