Hank explains absolute zero: -273.15 degrees Celsius - and the coldest place in the known universe may surprise you.
A correction on our use of the phrase "degrees Kelvin" can be found in this video: http://www.youtube.com/watch?v=OA98hl7Q5dQ - beginning at 6:43.
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Minimum zero point energy derived from uncertainty principle:
I think I can get it closer on average. I can make something minus x Kelvin for a certain amount of time, and then I'll use some time it was above zero Kelvin. Then I calculate in what time range this was on average exactly quite close to 0!
Absolute zero is -273.15 °C. However, the size of the Kelvin temperature unit is determined by dividing the temperature range between Absolute zero and the triple point of water by 273.16. In other words, the triple point of water is defined to occur at exactly 273.16 K. The triple point of water occurs at 0.01 °C.
The coldest place on earth has the least activity.
Little activity = boring.
We are officially the most exciting and boring place in the universe, at the same time.
... I CALL THIS, _SCHRODINGER'S MOOD._
It kinda frustrates me that lots of pop sci shows/channels/etc oversimplify the uncertainty principle: they seem to imply that there is a measurement that we can simply not make... (As in- to measure something to a certain degree changes it so our knowledge of such is thus limited) this is not the case. The fact of the matter is that that there IS NO specific thing/position/vector/momentum/etc to measure beyond a specific point! Its not that we cannot see 'this or that' quantity... it's that 'this or that' DOES NOT exist !just saying.
The uncertainty principle is not a thing. It's a simple matter of the moment you try to measure something you are applying energy/force to it, removing it from its original state. Same thing with measuring light. You measure light with light, by the time the light returns to the sensor where the light is, is as far as away from where it was when it was measured as the distance from where it was measured to the sensor plus all the computational bits. We'll always have a bit of lag till we find a way to get around the forces of the universe that act upon our measurements.
The Heisenberg Uncertainty principle is very much a thing. If you're interested in understanding what it states, then read the first and third chapters of the Feynman Lectures on Physics, Volume iii.
Rule 101 of physics is that matter can not be created nor destroyed, so please explain why you are mentioning the "Big Bang" when it is clear that this is just not possible by the rules that govern it?
I would love to read your response or even better, I would love to watch it.
"...but measuring this is impossible; it's forbidden by the uncertainty principle." This is the LEAST scientific thing I have heard on this channel. This makes it sound like this Heisenberg guy carved into a stone tablet "Thou mayest never know the location and momentum of a particle; it is FORBIDDEN!!!" My question, of course, is WHY? If you DID freeze the chunk of lead, and you got it actually cold enough to literally halt all motion in the substance, and you then measured it's location and momentum, would you die? Would it explode? It's weird, because I've heard all sorts of wacky, theoretical ideas from every field of science, a sort of "What if THIS happened?" Look up YouTube videos on "Travelling at the speed of light", another IMPOSSIBLE thing to do, and people theorize about it all the time! But, when it comes to Heisenberg, everyone acts like, "NO! You mustn't challenge Principle of Uncertainty! Lord Heisenberg forbids it!!" It feels... creepy.
If you want to truly understand the Uncertainty principle then read the first and third chapters of the Feynman Lectures on Physics, Volume iii.
If you are interested in understanding Special Relativity then check out this video series
These are among the best educational resources available on these topics. So they are worth going over multiple times till you fully comprehend all the subtleties.
When i heard about this in 8th grade science i was immediately interested because i remember of sub zero from mortal kombat and mei from overwatch and how when we can prosuce this much more maybe we can make meis ice gun. Or maybe.... you know... we can make a badass super solider... just a thought. (I volunteer)
The supermassive black hole at the center of Sagittarius A* is thought to emit Hawking radiation at a temperature of only 10^-14 Kelvin, so unless we've managed to exceed that, we might not hold the record for coldest point in the universe.
The other aspect of the uncertainty principle is that the mere act of observation changes the observed. Which is especially true for absolute zero. In order to see a particle at absolute zero, we need to bounce warmer particles off of it, which inevitably warms the observed particle up.
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