Throughout his life, Pauli had been preoccupied with the question of why the fine structure constant, a dimensionless fundamental constant, has a value nearly equal to 1 / 137.
32.
The constant in question is known as the fine structure constant, which depends on three other quantities : the charge on the electron, Planck's constant and the speed of light.
33.
There are some experimental physicists who assert they have in fact measured a change in the fine structure constant and this has intensified the debate about the measurement of physical constants.
34.
:Changing " c " would change the fine structure constant, and Fine-structure _ constant # Anthropic _ explanation suggests that that would result in a very different, and probably inhospitable, universe.
35.
Where " ? " is the fine structure constant and " h " is the Planck constant . is due entirely to the uncertainty in the value of the Planck constant.
36.
Not all fundamental constants you can think of can be set to 1 at the same time, however, since there are fundamental unitless constants of Nature such as the fine structure constant.
37.
Z is the atomic number, \ alpha _ { fine } \ approx 1 / 137 the fine structure constant, \ hbar the reduced Planck's constant and c the speed of light.
38.
The magnitude of the change apparently observed by the group is minute, amounting to just 1 part in 100, 000 in a number called the fine structure constant over 12 billion years.
39.
The patterns of absorption tell scientists something about the gas, and something about the light as well _ including its speed and the fine structure constant that determines how fast it goes.
40.
In which n is the principal quantum number, n = 1, 2, . . ., \ infty and \ alpha _ { g } is the gravitational counterpart of the fine structure constant.
