Black hole Quote by Lee Smolin
““For simple black holes, which do not rotate and have no electric charge, the values of the temperature and entropy can be expressed very simply. The area of the horizon of a simple black hole is proportional to the square of its mass, in Planck units. The entropy S is proportional to this quantity. In terms of Planck units, we have the simple formula S = .25 A / h G. Where A is the area of the horizon, and G is the gravitational constant.””
About This Quote
Source Lecture: 2015 Physics Seminar, Perimeter Institute
For non‑rotating, uncharged black holes, entropy is proportional to horizon area, expressed by S = ¼ A / h G in Planck units.
In simple terms: Black hole entropy equals a quarter of its horizon area.
Key Takeaway
Recognize the area‑entropy relationship.
Themes
physics
entropy
black holes
Mood
analytical
curious
Type
scientific
educational
When to use this quote
- academic research
- science education
- popular science writing
Key Concepts
thermodynamics
general relativity
Questions to Reflect On
- How does this relationship inform our understanding of gravity?
- What implications does it have for quantum gravity theories?
A Different Perspective
Complex formulas may be inaccessible to non‑experts.
