Solar heat transfer (an energy form) and space temperatures: exploring extreme temperature differences in the universe
Introduction
In our daily life, temperature is a very common physical quantity, we can feel the heat and cold by the temperature level. And in the universe, temperature is also a very important parameter, which not only affects the formation and evolution of the planets, but also directly related to the state of matter in the universe. In the universe, we can see very extreme temperatures, some places have very high temperatures, and some places have very low temperatures, so how are these extreme temperatures formed? Today, we will explore the way the sun’s heat is transferred and the reasons for the extremely low temperatures in space, and together we will unravel the mystery of the temperature in the universe.
I. How heat is transferred from the Sun
To understand the temperature distribution in the universe, we need to know how the sun transfers heat to the outside world. The sun is the most massive star we know, its diameter is about 1.4 million kilometers, the mass of the earth is 330,000 times, can be said to be a very large celestial body. The temperature of the sun is also very high, the surface temperature can reach 6,000 degrees Celsius, such a high temperature means that the sun will continue to transmit heat to the outside world, and this heat transfer method is mainly through thermal radiation to realize.
The so-called thermal radiation is the process of heat propagation to the outside world in the form of electromagnetic waves, which does not require a medium, that is to say, even in space, thermal radiation is able to propagate freely. When the earth receives thermal radiation from the sun, the temperature of the earth rises, which provides conditions for life on earth to survive. Not only that, the sun’s thermal radiation is absorbed by the atmosphere, which creates atmospheric circulation, which is one of the reasons for the formation of wind and rain on Earth.
II. The reason for the extremely low temperature in space
Through the above introduction, we know how the sun is to the outside world to transfer heat, then in such a universe full of thermal radiation in space, why we will see the temperature is extremely low? This has a close relationship with the way the thermal radiation spreads.
As we know, thermal radiation spreads along a straight line, and in the cosmic space, there is almost nothing other than all kinds of celestial bodies, that is to say, the thermal radiation will not be affected by anything in the process of propagation, which leads to a problem, that is, the thermal radiation will easily be blocked by other celestial bodies, and once it has been blocked, the thermal radiation will not be able to continue to propagate forward again, and this also means that the temperature of the place will be very low.
It is for this reason that we see places in the universe where the temperature is extremely low, and the temperature in these places can even be close to absolute zero. Absolute zero is the lowest temperature that matter can reach. If the temperature of an object can fall to absolute zero, then it will stop moving completely, which also means that the heat it has will disappear completely.
III. Closest place to absolute zero
So, where exactly is the closest place to absolute zero in cosmic space? Through the previous introduction, we already know that the reason why the temperature in space will be so low, mainly because the spread of thermal radiation is restricted, and in this process, in addition to the sun, other stars will also emit thermal radiation, which means that the closest place to absolute zero should be the space environment around other stars.
In such a space environment, the temperature is very low and almost negligible. It is because of such extreme temperatures that it is possible to observe some very interesting phenomena in such an environment, for example, some atomic nuclei will change because of the influence of temperature, which also provides very valuable information for us to study the state of matter in the universe.
Conclusion
Through today’s sharing, I believe you have a better understanding of how the sun’s heat is transmitted and the reason for extremely low temperatures in space. The sun constantly transmits heat to the outside world through thermal radiation, and in space, because the propagation of thermal radiation is restricted, that’s why there are places with extremely low temperatures, which can even be close to absolute zero.
Such extreme temperatures also provide very good conditions for us to study the state of matter in the universe. With new technology, scientists are now able to conduct more precise experiments in these environments, and I believe that in the near future, as human beings continue to deepen the exploration of the universe, we will definitely find more interesting physical phenomena from such extreme temperature environments. These discoveries will also inspire new trends in scientific and technological development for humanity.
