(ORDO NEWS) — Suppose we were able to create a perfectly enclosed space for an object so that it would be possible to heat it up even when it begins to decay into individual atoms.
How long can this go on? Is there an upper temperature limit? And if it exists, what happens after it is reached?
Transcendental limit
If the temperature of an object reaches the “Planck temperature”, which is about 1,000,000,000,000,000,000,000,000,000,000,000 degrees Celsius, then the laws of physics will literally begin to “fall apart” and stop working.
At this temperature, the object will generate such powerful radiation that each photon will be able to create its own tiny black hole!
Incredibly, about 10^-43 (ten to the minus forty-third power) seconds after the Big Bang, our Universe was briefly heated to the “Planck temperature”, which provided it with enough energy to start a rapid expansion.
One curious hypothesis says that dark matter is a collection of primordial tiny black holes that appeared at the very moment when the Universe was at an overshooting temperature, which, in fact, was a hundred trillion and trillion times hotter than the Sun.
Conclusion
Yes, there is an upper temperature limit, and it is limited by the available energy in the universe.
It is impossible to generate more energy than was put into the universe at the time of its inception. So it turns out that in the infinite Universe there is a finite supply of energy.
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