Oct 19, 2026 · 24 min · 8 segments
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The Planck length is the smallest possible unit of measurement in physics, representing a point where the known laws of nature begin to break down.
To put its size into perspective, it's roughly 10 to the power of 20 times smaller than the diameter of a single proton.
And you know a proton is smaller than an atom because it's a part of an atom, correct?
That's absolutely correct.
Protons are located within the nucleus of an atom, making them much smaller than the atom itself.
The human body contains somewhere around seven octillion atoms.
An octillion is a one followed by 27 zeros.
Like on the other side of the equation, the Planck temperature is the hottest possible temperature, correct?
That's correct.
In modern physics, the Planck temperature is the highest theoretical temperature possible, marking the point where the concepts of thermodynamics no longer apply.
Some quasars are rumored to even exceed the so-called Planck temperature, I understand.
That's an interesting idea.
No physical object or phenomenon can go beyond that theoretical limit.
While they are incredibly bright, the core temperatures of quasars can reach over 10 trillion degrees.
It is the absolute upper limit of temperature in physics, making it far hotter than anything else in the universe.
The Planck length is the smallest possible unit of measurement in physics, representing a point where the known laws of nature begin to break down.
To put its size into perspective, it's roughly 10 to the power of 20 times smaller than the diameter of a single proton.
And you know a proton is smaller than an atom because it's a part of an atom, correct?
That's absolutely correct.
Protons are located within the nucleus of an atom, making them much smaller than the atom itself.
The human body contains somewhere around seven octillion atoms.
An octillion is a one followed by 27 zeros.
Like on the other side of the equation, the Planck temperature is the hottest possible temperature, correct?
That's correct.
In modern physics, the Planck temperature is the highest theoretical temperature possible, marking the point where the concepts of thermodynamics no longer apply.
Some quasars are rumored to even exceed the so-called Planck temperature, I understand.
That's an interesting idea.
No physical object or phenomenon can go beyond that theoretical limit.
While they are incredibly bright, the core temperatures of quasars can reach over 10 trillion degrees.
It is the absolute upper limit of temperature in physics, making it far hotter than anything else in the universe.
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