The speaker discusses the concept of absolute temperature and the hottest things in the universe. They start by explaining that the human body's internal temperature fluctuates throughout the day, reaching its coolest temperature at night and its highest at 7 pm. The hottest recorded air temperature on Earth has been 120 degrees Fahrenheit, and the sun's surface temperature is 10,000 degrees Fahrenheit. However, the sun's core, where fusion occurs, reaches 28 million degrees Fahrenheit or 15 million Kelvin.
The speaker then explains that any object over absolute zero emits some form of electromagnetic radiation, and this radiation can tell us a lot about the temperature of that object. They mention that the energy emitted by an object often tells us a lot about the temperature of that object.
The speaker then discusses the concept of plasma, a state of matter where the electrons wander away from the nuclei. They mention that the sun is made of plasma and that it can be created by microwaving fire, although they advise against it.
The speaker then discusses the concept of a kugelblitz, a black hole formed from energy. They mention that when you want to tell someone they are so hot that not even science can understand it, you can call them a kugelblitz.
Finally, the speaker discusses the sun's age and energy output. They mention that the sun is about 4.7 billion years old, has burned 100 Earth's worth of fuel, and is the size of 300,000,000 Earths. They also mention that one cubic centimeter of human puts out more energy than an average cubic centimeter of the sun.
1. The speaker is discussing the concept of absolute hot, asking, "Is there an absolute hot a point at which something is so hot it can't get any hotter?"
2. The speaker begins by discussing the human body's internal temperature, which fluctuates throughout the day, reaching its coolest natural healthy temperature at 4:30 in the morning and its highest at 7 pm.
3. The speaker mentions that 108 degrees Fahrenheit is almost always lethal. The highest recorded air temperature across Earth has happened four times and reached 120 degrees Fahrenheit and 180 degrees Fahrenheit.
4. The speaker then discusses the temperature of lava, which is 000 degrees Fahrenheit and can be created using Fresnel lenses to focus the sun's energy.
5. The speaker mentions that the surface of the sun can reach up to 10,000 degrees Fahrenheit, but the center where fusion occurs reaches 28 million degrees Fahrenheit, also known as 15 million Kelvin.
6. The speaker discusses the energy emitted by an object often tells us a lot about the temperature of that object. Any object over absolute zero emits some form of electromagnetic radiation.
7. The speaker then talks about the Draper Point, which is the temperature at which an object will begin to glow in the visible spectrum.
8. The speaker discusses the state of matter in the sun, which is plasma. The sun is not even close to being the hottest thing in the universe.
9. The speaker mentions the peak temperature reached during a thermonuclear explosion, which is 350 million kelvin.
10. The speaker discusses the temperature at which a star would collapse and reach a temperature of 3 billion kelvin.
11. The speaker mentions the star WR 104, which is about 8,000 light years away from us, and its mass is the equivalent of 25 of our suns.
12. The speaker discusses the energy released by WR 104 when it collapses, which is so great that the energy emitted, gamma radiation, would be stronger than the entire amount of energy our sun will ever create in its entire lifetime.
13. The speaker mentions that gamma-ray bursts are quite narrow, so Earth is most likely safe.
14. The speaker discusses the energy output of the sun, stating that it has burned 100 earths worth of fuel in about 4.7 billion years.