Rotation and translation, nothing works without movement!
Machines are based on moving parts and it is precisely these machines that are to be optimized. While in the past centuries machines were developed to defy eternity and had a running time of many decades or even a century, today different laws apply.
Machines and vehicles must be efficient. They must be developed in such a way to achieve an optimum. An optimum in terms of material consumption, energy consumption – and weight, while maintaining performance and agility. To emit no or as little CO2 as possible, not to require any downtime and therefore to be low-maintenance. This challenge of optimization at various levels of engineering science is enormous.