Welcome to the Series of Hottest thing in the Universe:- (Part -2)
If you were to heat the head of the pin to the temperature of the centre of the Sun, it would kill any person within 100 miles of it.
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.
You and me, we don't glow visibly, but we do emit infrared light.
We can't see it, but infrared cameras can.
WBT has great videos and in that video, the infrared camera is hidden inside an opaque black trash bag. Now, we can't see him, but his body is infra-redly glowing through it.
If you want something to be the right temperature to glow in the visible spectrum, you'll have to reach the Drapper Point about 798 kelvin (976°F or 525°C).
At this point , almost any object will begin to glow a dead red.
We can calculate the expected wavelength of radiation coming off of an object because of its temperature and that wavelength gets smaller and smaller the hotter and hotter the object gets.
It goes from radio waves to microwaves up through infrared divisible, all the way to X-rays and Gamma rays, which are created in the middle of our Sun.
At temperatures as hot as the Sun matter exists in a fourth state. Not solid, not liquid, not gas but instead, a state where the electrons wander away from the nuclei- Plasma.
Besides, our Sun isn't even close to being the hottest thing in the Universe. I mean sure, 15 million kelvin is pretty incredible, but the peak temperature reached during a thermonuclear explosion is 350 million kelvin, which hardly counts because the temperature is achieved so briefly.
But inside the core of a Star, 8 times larger than our Sun, on the last day of its life, as it collapses in on itself , it would reach a temperature of 3 Billion kelvin or 3 Gigakelvin.
If you were to heat the head of the pin to the temperature of the centre of the Sun, it would kill any person within 100 miles of it.
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.
You and me, we don't glow visibly, but we do emit infrared light.
We can't see it, but infrared cameras can.
 |
| Electromagnetic Radiation |
WBT has great videos and in that video, the infrared camera is hidden inside an opaque black trash bag. Now, we can't see him, but his body is infra-redly glowing through it.
If you want something to be the right temperature to glow in the visible spectrum, you'll have to reach the Drapper Point about 798 kelvin (976°F or 525°C).
At this point , almost any object will begin to glow a dead red.
We can calculate the expected wavelength of radiation coming off of an object because of its temperature and that wavelength gets smaller and smaller the hotter and hotter the object gets.
It goes from radio waves to microwaves up through infrared divisible, all the way to X-rays and Gamma rays, which are created in the middle of our Sun.
At temperatures as hot as the Sun matter exists in a fourth state. Not solid, not liquid, not gas but instead, a state where the electrons wander away from the nuclei- Plasma.
 |
| Plasma |
Besides, our Sun isn't even close to being the hottest thing in the Universe. I mean sure, 15 million kelvin is pretty incredible, but the peak temperature reached during a thermonuclear explosion is 350 million kelvin, which hardly counts because the temperature is achieved so briefly.
 |
| Thermonuclear Explosion |
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