What Is Dark Energy? An Astrophysicist Explains | Edge Of Knowledge

What Is Dark Energy? An Astrophysicist Explains | Edge Of Knowledge | Ars Technica

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Ars Technica

Күн бұрын

Пікірлер: 96

@ioresult 2 жыл бұрын

These videos are so good, why aren't there more people watching them?

@user-tg6vq1kn6v 2 жыл бұрын

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.

@threat645 2 жыл бұрын

Most people aren’t curious. Smart people are more curious & wonder .

@michaeljasinski5258 2 жыл бұрын

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.

@Randomynous01 9 ай бұрын

Bec yt does its best to not recommend them.. i came here manually..

@megamangos7408 2 жыл бұрын

Production team, why is there a top of the head camera angle?

@Gokotti 2 жыл бұрын

Will this be on the exam?

@Siledas 2 жыл бұрын

Man, David Draiman's career has taken a really interesting turn.

@SpaceisAce 2 жыл бұрын

Awesome! I made a video about Dark Energy a week ago.. we need more content on this mysterious force!

@maurizioalbera 2 жыл бұрын

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?

@Djt4848 2 жыл бұрын

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.

@mikenine1962 2 жыл бұрын

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.

@zestyzephyrzillion6354 2 жыл бұрын

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

@dawoudmazin705 Жыл бұрын

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??

@ammarasawer 2 ай бұрын

The tension you described using rubber band certainly explains a verse of the holly Quran that can be read as follow: "The Day that We roll up the heavens like a scroll rolled up for books (completed),- even as We produced the first creation, so shall We produce a new one: a promise We have undertaken: truly shall We fulfil it." This give us a clue of the dark matter is forming a shape of book pages !!! and that one day it will collapse like a book of course due to tension produced by the dark energy as described in the video.

@paulschlacter4181 2 жыл бұрын

6:49 When Hitler is being told he is losing the war.

@orvoloco8261 2 жыл бұрын

Oh cool, like Putin.

@emulation2369 2 жыл бұрын

@@orvoloco8261 you mean like ukranian nazi Azov battalions that were wiped out 🤣

@drryljoh10 7 ай бұрын

4:07 what type of math is this?

@alex79suited Жыл бұрын

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.

@mocabe01 Жыл бұрын

If E=mc^2, then does dark matter also have something to do with dark energy?

@cody9635 2 жыл бұрын

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?

@Shinkajo 2 жыл бұрын

What you're kinda talking about is the Big Crunch. Although the Big Bang was not an "explosion". That's a misconception

@cody9635 2 жыл бұрын

@@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.

@Shinkajo 2 жыл бұрын

@@cody9635 not quite, there is no "center" of the universe. That is also a misconception.

@godblessthelessfortunate3175 Жыл бұрын

Is dark energy and dark matter convertible using E = MCC?

@audreydaleski1067 14 күн бұрын

What do photons move through?

@scottbuckingham5626 6 ай бұрын

I am fascinated by dark energy

@johnnyz3073 2 жыл бұрын

When something is exposed to more nothing

@johnpalma5507 Жыл бұрын

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.

@chakbraks1282 Жыл бұрын

idk but it feels kinda scary because we dont know what its pushing us to i guess

@gyro5d 2 жыл бұрын

Dark Energy = Dielectric energy. Dielectric energy creates its own Space, to exist in.

@GamerbyDesign 2 жыл бұрын

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.

@subtractivemusic 2 жыл бұрын

A little too whacky and quirky for my taste, but good for a younger audience

@mattwalter5184 2 ай бұрын

Yes. I could see this resonating with Generation X.

@Arkanthrall 2 жыл бұрын

* Hitler, after operation Barbarossa failed * : 6:50

@chakbraks1282 Жыл бұрын

i feel all our matter is being defragmented by it or something. it creeps me out a little

2 жыл бұрын

When he looks up for a moment, is he speaking to God? I don’t understand.

@torjonsson1958 2 жыл бұрын

Yes

@nirv 2 жыл бұрын

No such person.

@SevenHunnid 2 жыл бұрын

I get paid to smoke weed on my KZbin channel as my job lol, screw college loans. I also ate burger king inside of a target store⁉️🥷

@abby7352 2 жыл бұрын

@@SevenHunnid ok ig? nobody asked tho xd

@nicholashylton6857 2 жыл бұрын

No, probably the guy with the boom mike.

@nielsdaemen Жыл бұрын

6:55 NEIN NEIN NEIN NEIN!

@zacsch5364 2 жыл бұрын

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.

@alex79suited Жыл бұрын

You have to separate space from matter their different entities, matter inside of the infinite ♾️ vibrating (E) space. Cool

@MoorishMade 2 жыл бұрын

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.

@sureshbaliyan3655 Жыл бұрын

Is dark energy and perpetual energy same? Something from nothing?

@leagueofotters2774 Жыл бұрын

😃

@chakbraks1282 Жыл бұрын

@@sureshbaliyan3655 seems like it might be

@alex79suited Жыл бұрын

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.

@fobbitoperator3620 2 жыл бұрын

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.

@frosted1030 2 жыл бұрын

Dark Energy is a curvature coefficient of the bulk.

@leagueofotters2774 Жыл бұрын

It's the exogenous congregational acceleration of the condensing frequency

@Bazravish69 Жыл бұрын

Thanks for clearing that up guys. Nobel will be in touch 😂

@audreydaleski1067 14 күн бұрын

Where isn't dark matter? Dark energy?

@DipsyDoodleDaisy 2 жыл бұрын

If only he didn’t try so hard to imitate Alton Brown in Good Eats. 😕

@admiralpercy 2 жыл бұрын

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

@HebaruSan 2 жыл бұрын

An object that completely surrounds us would cancel out its own gravity within its interior, look up the Shell Theorem

@thedeadbatterydepot 3 ай бұрын

I have invented dark matter and dark energy, i can make in my hand

@GlennGlenn-n3y 7 ай бұрын

Dark Energy is the conscious energy of the " Black Walls " coming out 2 play in its linear universe.....and other dimensions of course 😏😎

@admiralpercy 2 жыл бұрын

I was enjoying this, but the sound of a real chalkboard is an unpleasant sensory experience.

@markgarrett2968 Жыл бұрын

accelerated entropy

@audreydaleski1067 14 күн бұрын

Nowhere there is nothing?

@GAMarine137 2 жыл бұрын

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.

@oziaus 2 жыл бұрын

What?

@Bazravish69 Жыл бұрын

Rates can’t have rates bud.

@audreydaleski1067 14 күн бұрын

Is something everywhere? Must be.

@akuma2124 2 жыл бұрын

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

@terrificm6569 2 жыл бұрын

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

@sirscarlet460 Жыл бұрын

Weird episode of hot ones

@rocketRobScott 2 жыл бұрын

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.