137 - Fine-Structure Constant Number
137 is famous in physics because it is close to the inverse fine-structure constant.
Why this number matters
It appears in equations that describe how light and charged particles interact.
Background / history
Physicists have long treated 137 as a deep and intriguing constant-related number.
Simple example
The inverse fine-structure constant is about 137.036.
Key Facts
- Appears in quantum electrodynamics discussions
- Often called one of physics’ 'mystery numbers'
Fun fact
Many scientists have called 137 one of the most mysterious numbers in physics.