The singularity of classical general relativity is inevitable, so there are zero points in space-time in the standard big bang model, which gives God a place to live. However, considering the uncertainty principle of quantum mechanics, some basic measures, such as length and time, are uncertain. The uncertainty is determined by Planck constant, from which the minimum quantum Planck length, namely 10e-33cm, can be determined. This is much smaller than the scale of the nucleus. It is impossible to measure a more accurate length than this, and it is meaningless to measure a shorter length than Planck's. Similarly, as the minimum interval of time quantum, Planck's time is 10e-43 seconds. There is no shorter time. In other words, we can't reduce a black hole to a mathematical point, nor can we trace it back to the real beginning of BIGBANG.

Planck length l = GH/C3 ~10-35m =10e-33cm (approximately equal to. )

Planck constant, named H, is a physical constant that describes the quantum size. It plays an important role in quantum mechanics. When Max Planck studied the law of thermal radiation of objects in 1900, he found that only when the emission and absorption of electromagnetic waves are not continuous, but one after another, the calculated results can be consistent with the experimental results. Such an energy is called an energy quantum, and each energy quantum is equal to HV, and V is the radiated electromagnetic wave.

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Where electron volts (ev) second (s) is the unit of energy:

The physical unit of Planck's constant is energy times time, and it can also be regarded as momentum times displacement:

(Newton (n) meter (m) second) is the unit of angular momentum.

Another commonly used quantity is the simplified Planck constant, sometimes called Dirac constant, in memory of paul dirac:

Where π is pi, pronounced "h-bar".

Planck constant is used to describe quantization. Microscopic particles, such as electrons and photons, have a continuous range of possible values under certain physical properties. For example, the energy e of a light beam with a fixed frequency v may be:

Sometimes the angular frequency ω= 2ω is used:

Many physical quantities can be quantized. Such as quantization of angular momentum. J is the total angular momentum of the system with rotation invariants, and Jz is the angular momentum measured in a specific direction. Its value is:

So it can be called "angular momentum quantum".

Planck constant is also used in Heisenberg's uncertainty principle. The uncertainty (standard deviation) δ x of displacement measurement in the same direction and the uncertainty δ p of momentum measurement have the following relations:

There are several other groups of physical measures that follow this relationship, such as energy and time.