The speaker, Michael, discusses the concept of "absolute hot" in the universe. He starts by explaining that the human body's internal temperature fluctuates throughout the day, reaching its highest at 7 p.m. and its coolest at 4:30 a.m. He then mentions the highest recorded temperature on Earth, which occurred in Death Valley at 129 degrees Fahrenheit.
He then moves on to the Sun, stating that its surface temperature is 10,000 degrees Fahrenheit, but the center, where fusion occurs, reaches 28 million degrees Fahrenheit or 15 million Kelvin. He mentions that the energy emitted by an object often indicates its temperature.
He introduces the concept of the Draper point, at which an object will begin to glow red, and the Planck temperature, at which our theories of temperature and energy break down. He also talks about the concept of a Kugelblitz, a black hole formed from energy, as a theoretical way to describe something so hot that science can't comprehend it.
Finally, he discusses the energy output of the Sun and a human, stating that one cubic centimeter of a human puts out more energy than an average cubic centimeter of the Sun, making the human "warm inside". He concludes by thanking the viewers for watching.
1. The human body's internal temperature fluctuates throughout the day, reaching its coolest natural healthy temperature at 4:30 in the morning and its highest at 7 p.m.
2. The highest recorded air temperature across all of Earth was 129 degrees Fahrenheit, which occurred four times in Death Valley.
3. The surface of the Sun reaches 10,000 degrees Fahrenheit, but the center, where fusion occurs, reaches 28 million degrees Fahrenheit, also known as 15 million Kelvin.
4. The energy emitted by an object often tells us a lot about the temperature of that object.
5. At 1 TeraKelvin, the electrons and the protons in the nucleus melt into quarks and gluons, a sort of soup.
6. At temperatures as hot as the Sun, matter exists in a fourth state known as plasma.
7. Inside the core of a star, 8 times larger than our Sun, on the last day of its life, the temperature can reach up to 3 billion Kelvin.
8. A star named WR 104, about 8,000 light years away from us, when it collapses, its internal temperature will be so great that the energy emitted would be stronger than the entire amount of energy our Sun will ever create in its entire lifetime.
9. Scientists in Switzerland have been able to smash protons into nuclei, resulting in temperatures much larger than 1 TeraKelvin. They've been able to reach the 2 to 13 ExaKelvin range.
10. Above 1.41 times 10 to the 32 Kelvin, our theories don't work. The object would become hotter than temperature. It would be so hot that what it is would not be considered a temperature.
11. The Sun is about 4.7 billion years old and has burned 100 Earths worth of fuel.