What Is Dark Energy? An Astrophysicist Explains | Edge Of Knowledge | Ars Technica
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- เผยแพร่เมื่อ 13 มิ.ย. 2022
- When scientists set out to measure what they expected to be a slow down in the expansion of the universe, they discovered the exact opposite: the expansion of the universe isn't slowing, but accelerating. The unknown forces behind this acceleration have been dubbed 'dark energy' - and Dr. Paul Sutter breaks down what we know about it, what we don't, and where current research is leading us.
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These videos are so good, why aren't there more people watching them?
Random topics, last vid was warning us about climate change and telling us for the nth time that we are all going to die very soon.
Most people aren’t curious. Smart people are more curious & wonder .
It's way far down on the "dark energy" search results. Perhaps this outfit pays less to have their content boosted or prioritized. Also this video is still relatively new, whereas others are a few years old now and have had time to rack-up views.
Bec yt does its best to not recommend them.. i came here manually..
Awesome! I made a video about Dark Energy a week ago.. we need more content on this mysterious force!
Man, David Draiman's career has taken a really interesting turn.
Production team, why is there a top of the head camera angle?
Could we have a growing tolerance for his expanding knowledge base if only apropos circumstantially (ally)...hence ,kicking the amorphous blob of knowledge through space vacillating between hypothesis building and furthering model design with the emphasis on being useful and reliable...keep up the excellent work thriving towards a universalality
Will this be on the exam?
And if this was the effect of a sort of sonic-like wave of the space-time fabric at a cosmic scale? Compression, then decompression, and so on?
The Hadron Collider can in theory produce particles faster than the speed of light. Is Dark energy, that which travels faster than the speed of light, i.e. The universe is itself either a black hole or part of several black holes, that involves physics that operates at faster than the speed of light.
I would like to hear more about how dark energy and conservation of energy works.
Also, at the end with the Big Rip, how is it in less than a Billion years??
Interesting. The rubber band analogy is cool, although the universe has no edge or boundary unlike the rubber band. So, theoretically this tension would never “snap”. Also, the total energy in the universe is 0, so no matter the amount of dark energy it will theoretically always be cancelled out negative energy, or gravity.
You have to separate space from matter their different entities, matter inside of the infinite ♾️ vibrating (E) space. Cool
Can someone comment on this? I know nothing of physics. If the universe is a void, or moreover a vacuum, and the way he describes it, but everything accelerating, that the expansion of the universe starts to weaken gravity as it expands? and by that thought, if this was all result was from the the big bang explosion, and the expansion of the universe is the possibility of the kinetic energy of something massive that did explode, would it be possible for everything to at some point stop and start to implode?
What you're kinda talking about is the Big Crunch. Although the Big Bang was not an "explosion". That's a misconception
@@Shinkajo whether it's an explosion or expansion, it started at the center of this universe. Everything in the observable universe is being pushed or had some propulsion to expand.
@@cody9635 not quite, there is no "center" of the universe. That is also a misconception.
If E=mc^2, then does dark matter also have something to do with dark energy?
4:07 what type of math is this?
Is dark energy and dark matter convertible using E = MCC?
Could Dark Energy be some form of energy occurring at the edge of the Universe. That is where the "edge" of the universe touches all parts of the universe.
idk but it feels kinda scary because we dont know what its pushing us to i guess
So you assuming matter drops off due to expansion, what if it drops off due to being gathered to blacksphere? If you observe the cosmos you will notice all matter is gathered due to galacty building. You will also observe that matter is being reduced at all times everywhere by these blacksphere. The result is the illusion of expansion of the space when gathering is what's actually occurring. And dark matter is simply the result of the matter being reduced by those blacksphere and is spent matter.
i feel all our matter is being defragmented by it or something. it creeps me out a little
6:55 NEIN NEIN NEIN NEIN!
When something is exposed to more nothing
accelerated entropy
Dark Energy = Dielectric energy.
Dielectric energy creates its own Space, to exist in.
Dark Energy is a curvature coefficient of the bulk.
It's the exogenous congregational acceleration of the condensing frequency
Thanks for clearing that up guys. Nobel will be in touch 😂
Dark energy is the Humm that was heard in the big ear its everywhere always it's a vibration of the space most likely due to it being a vacuum.
Dark Energy is the conscious energy of the " Black Walls " coming out 2 play in its linear universe.....and other dimensions of course 😏😎
dark matter is the suggested energy of the space between atom's yet we do not have the recourse to prove it to be real wether it exists does not matter unless it can be proven.
I was enjoying this, but the sound of a real chalkboard is an unpleasant sensory experience.
It's energy, but you can't see it. Ergo "dark energy."
Thank you...thank you. All the $$ awards, Nobel prizes & endorsement deal offers must be posed to my PR President.
Weird episode of hot ones
If only he didn’t try so hard to imitate Alton Brown in Good Eats. 😕
6:49
When Hitler is being told he is losing the war.
Oh cool, like Putin.
@@orvoloco8261 you mean like ukranian nazi Azov battalions that were wiped out 🤣
* Hitler, after operation Barbarossa failed * : 6:50
What exist outside the known universe? ....what if dark matter is the particle that makes up darkness or better still dark photons 😅I mean think about it we can't see it
While we are trying to figure out whats the 70% of our universe that keeps expanding In another demension they are trying to figure out whats the other 30% of our universe that keeps shrinking.
What if we are just surrounded by either a single supermassive object, are a whole bunch of supermassive objects that completely surround us, and the gravity of these objects is pulling every part of the universe towards itself.
I suppose these supermassive objects would probably need to be beyond the observable universe
An object that completely surrounds us would cancel out its own gravity within its interior, look up the Shell Theorem
When he looks up for a moment, is he speaking to God? I don’t understand.
Yes
No such person.
I get paid to smoke weed on my TH-cam channel as my job lol, screw college loans. I also ate burger king inside of a target store⁉️🥷
@@SevenHunnid ok ig?
nobody asked tho xd
No, probably the guy with the boom mike.
You still haven't understood quantum theory. Read Erwin Schrödinger Mind and Matter.
Dark Energy is vibration. Everything in the universe is vibratory driven by its own frequency. I'm going to take a wild guess that the folks over at CERN now this, but I'm Just guessing. But the Ancients new about this long time ago. Also, I just found this channel. Awesome content.
Is dark energy and perpetual energy same? Something from nothing?
😃
@@sureshbaliyan3655 seems like it might be
A little too whacky and quirky for my taste, but good for a younger audience
Dark energy/matter speculation …
Maybe space that is truly empty has a clumpy nature, and could all be drawn together like anti-gravity. This clumped-together space might behave differently, repelling space containing matter.
Along with "dark matter," it's a placeholder name referring to something that is needed to explain observations in the visible universe. Similar to "here be dragons" on old maps.
Can also power planet destroyers according to Star Wars.
I don’t think the universe expansion is really accelerating. You just need to apply an additional layer of derivative. Meaning, the rate of the rate of expansion. I believe that higher level derivative is negative. Give things enough time and the expansion will cease and the Big Crunch phase will begin.
What?
Rates can’t have rates bud.
Expanding universe is already mentioned in The Holy Quran 51 - 47
"I'll send sum dark energy right up yer fuggin ash. A haha haa"
that’s already mentioned in the quran 1400 years ago
Can they pay to get people subscribed to your channel? I was not subscribed to this channel, but apparently i was.
There is no such thing
Hi, I'd like to write you a 100 page long report on how useful I found this, and then at the very end mention I didnt find it useful; but because I can respect your time and save you 20 minutes of your life, I'll summarise by saying WTF is this crap ARS technica?! The only thing I learned today is I fell for click bait from ARS.
Here's the TLDR for the video
17:30
Did this guy just admit to flat earth?
Nah it means that the universe is infinite ...
Just call it Mana and get over it.
I'll just call you an idiot instead
What a dumbed down terribly presented video.
AGREED!
Sesame Street does dark matter
wtf is this
What is Dark Energy?...No one knows. Just saved you 20 minutes of your life not watching this video.