Accord Quote by Ludwig Boltzmann
“Since a given system can never of its own accord go over into another equally probable state but into a more probable one, it is likewise impossible to construct a system of bodies that after traversing various states returns periodically to its original state, that is a perpetual motion machine.”
About This Quote
Source Scientific Paper: On the Entropy of the Universe, 1871
Physical systems evolve toward states of higher probability, making perpetual motion impossible.
In simple terms: Systems move toward more likely states, not back to the start.
Accept limits of energy conversion.
Themes
Mood
Type
When to use this quote
- engineering design
- energy policy
- academic teaching
- technology forecasting
Key Concepts
Questions to Reflect On
- Can we ever achieve 100% efficient machines?
- What practical implications does this have for renewable energy?
Idealized models ignore friction and external influences.