Is half a Planck length possible?
There is absolutely nothing wrong with saying ‘half a planck length’, at least in our vanilla theories.
Is a black hole a Planck length?
Observationally, the lightest black hole candidates are about six solar masses. Such a density would have been enough to create black holes a mere 1035 meter across (a dimension known as the Planck length) with a mass of 108 kilogram (the Planck mass).
Is a black hole singularity smaller than a Planck length?
This creates an outward force known as quantum-gravitational pressure, and if true, it means that black holes don’t have singularities at their core. They are many times larger than the Planck length, but are still unimaginably dense, but not infinitely dense like a singularity.
What happens if something is smaller than a Planck?
Originally Answered: Is there anything smaller than a Planck length? There is no even theoretically possible measuring device that can measure differences between two locations that are closer together than a Planck length. Thus, the Planck length is the smallest possible unit of measurement.
Why is Planck’s constant so small?
So why is the Planck length thought to be the smallest possible length? The simple summary of Mead’s answer is that it is impossible, using the known laws of quantum mechanics and the known behavior of gravity, to determine a position to a precision smaller than the Planck length.
Could a black hole be a black star?
They may not be black or holes. Black holes, those gravitational monsters so named because no light can escape their clutches, are by far the most mysterious objects in the universe. But a new theory proposes that black holes may not be black at all.
Is Planck length infinitely small?
The idea of the Planck length is that it’s the smallest possible measurement. Anything smaller would not obey the laws that govern physics and the universe. Therefore, half a Planck length cannot exist.
How is the size of the Planck length measured?
To measure anything the size of Planck length, the photon momentum needs to be very large due to Heisenberg’s uncertainty principle and so much energy in such a small space would create a tiny black hole with the diameter of its event horizon equal to a Planck length.
How is the Planck length of a black hole defined?
The two digits enclosed by parentheses are the standard uncertainty of the reported numerical value. The Planck length is about 10 −20 times the diameter of a proton. It can be defined as the reduced Compton wavelength of a black hole for which this equals its Schwarzschild radius.
Are there any misconceptions about the Planck length?
There are a lot of misconceptions that generally overstate its physical significance, for example, stating that it’s the inherent pixel size of the universe. The Planck length does have physical significance, and I’ll talk about what it is, and what it isn’t. What is the Planck Length?
When did Max Planck invent the Planck constant?
In 1899 Max Planck suggested that there existed some fundamental natural units for length, mass, time and energy. These he derived using dimensional analysis, using only the Newton gravitational constant, the speed of light and the “unit of action”, which later became the Planck constant.