1. Fine-structure constant # Is the fine structure constant really constant ? ). 2. Where " T " is the fine structure constant as the development parameter. 3. QED concludes that the fine structure constant is an increasing function of energy. 4. "It's hard to imagine the full ramifications of changes to the fine structure constant ," 5. The analog of the fine structure constant for gravitation is the gravitational coupling constant. 6. Similarly, a number known as the fine structure constant characterizes the strength of electromagnetic forces. 7. It is possible to define a unitless fine structure constant for electromagnetism, weak, and strong interactions. 8. A somewhat damaging statement in his defence of these concepts involved the fine structure constant , ?. 9. The Universal Gravitational Constant and the Fine Structure Constant are the two that are most often questioned. 10. In 1999, evidence for time variability of the fine structure constant based on observation of quasars was announced.