I read the news about the return of Nibiru
article here , watched the video, laughed for a long time about -4 degrees Kelvin. He told his brother (nuclear physicist by training), and he says to me, “I did not reach such a degree of abstraction that I could imagine negative kinetic energy”. Next comes unscientific reasoning about how negative kinetic energy should look.
I hope that everyone remembers from the physics course that the
temperature of a substance is the kinetic energy of the molecules that make up this substance.
In order to imagine something ... be it a picture, a program or a negative kinetic energy, I use analogies, images, something similar, something unique ... well, and then I began to think about how it might look. An image of a particle at rest comes to mind, which inhibits other particles approaching themselves, while remaining at rest.
Imagine this in more cheerful images, namely in humans.
For a start, a simple example (1).
There are two particles ... one hot

(in our case, this is one of two comrades, excited about the idea of ​​going rollerblading, or hanging out all night on the flight, in general, light it), the other is cold

(in our case, this is the second comrade who is lost of sleep after a hard work week, and the maximum that he can do is to stay at home having buried himself in a TV set or sit down to read the popular science habr). In this example, both are particles with a positive temperature.
Let's make these particles exchange energy by closing them in a confined confined space (a heated friend went to his distracted companion and tries to stir it up to go to the party), until the energy level, temperature of the substance. In our example, we get two particles with the same temperature (Or in other words, friends gathered to go to the club, play billiards and drink tea)


')
The following example (2).
With an even hotter first particle

(this time this friend came to visit his friend in another city ... without warning, by accident, at work), and the second particle, which is at absolute zero ... i.e. alone ... (i.e., the second mate is sleeping after work week and daily shift)

We place them together, in an enclosed space, mix, but do not shake, and wait for the energy to equalize.


We received two friends who agreed to drink juice on a bench near the house, remembering the exploits of youth, and thinking about what comes first - old age, or the end of the world.
What will be in the following example (3).
This time, the first particle is heated up even more (just in case), although it is possible for the experiment to take several hot particles, because some may die or freeze without waiting for the end of the experiment.



and one cold, with negative kinetic energy ... or a "depressive" particle

(why I called her depressive, it will become clear a little further).
The energy of one hot particle may not be enough to heat the depressive particle to a state of positive temperature. Those. in the language of physics, the frozen “depressive” particle will continue to be at rest, while the hot particles will be forced to reduce their speed (or take the temperature from the hot particles). Those. it will slow them down remotely, even before contact, because, in the case of contact, they are likely to stick together into one frozen body (there were thoughts about a black hole).
As a result, we get cooled particles.



flying past the depressive particle, which is possible only slightly while heated

remaining a particle with negative kinetic energy.
Instead of a conclusion.
Perhaps the discovery of temperatures below absolute zero and negative kinetic energy is not far off, even if from the point of view of current science this is not possible. Or, as I was advised here, for the sake of completeness, the “depressive” particle should move at the speed of light, then it will look like the temperature axis is looped. Although I think the most written above will fit for the topic of psychological training "there are no perpetual motion machines, there are perpetual brakes" or ideas for a fantastic thriller about "cautious, depressive particles".