Is Dark Energy & Dark Matter Same? 🤔 | What is Dark Energy? | Sci-Fi (EP-11) | Spectrum By Vedantu
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- Опубликовано: 26 окт 2021
- Hey guys, in this session we are here to understand the concept of Dark Energy. What is Dark Energy? Is Dark Energy & Dark Matter Same? Know all about it by your very own master teacher 𝐀𝐛𝐡𝐢𝐬𝐡𝐞𝐤 𝐒𝐢𝐫 coming with an amazing session of “Dark Energy | Sci-Fi (EP-11)” #spectrumbyvedantu ➡️ Watch the complete video to learn and Stay Tuned for more such amazing sessions. 🎧 Put Earphones on for the best experience 👍
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I think it is with anti mater
I am eagerly waiting for the session and I want to learn the topic!!!
हां में भी 😃
Yeahhh!!! Dark Energy😀😀😀😀
Isme toh hme Abhishek sir or Dark Abhishek sir ki Chemistry dekhne ko milegi....☺❤
Maja aayega😄😄😄😄😄
Fascinated by this. We want more of it.
All effects applied to all diffrent Abhishek Sir were awesome.
Dark energy!!! anti Abhishek sir ki baari:))
Waiting 💖
Peace ✌️
Dark energy??
You always bring fabulous🔥session for us.Balle Balle😘✌🏻
0:44 for a second I was like ye kya ho rha hai re baba? 😅😅
5:55 😆sir aap apne hi maje le rhe the 😅😅😂😂
Thank you sir for the information ☺
Balle Balle
Sir please make a video on Special and General theories of relativity
Sir sci-fi ke episode dekh ke aise lagta hai jaise sachi mein koi hollywood ki series chal rhi aur naye naye hero or villain aa rhe hai.🤣🤣😂😂😂
Editing OP 🔥🔥🔥🔥
1:45 EVEN SHEK SHEK SHEK ABISHEK SHEK SHEK SHEK ABISHEK IS ALSO OUR FAVORITE
AWESOME SEESION SIR
Another video on Dark energy🙂🙂
It will be awesome sir......😀
Eagerly waiting.♥️
Take care sir :)
Peace✌✌
Video was amazing sir.😀😀
Loved it a lot.♥️♥️♥️
I think that dark enegy is with dark matter... Baaki sahi se toh kisi ko nhi pta😅😅😅😅😅
Peace✌✌
Take care sir :)
*Sir please do make a video on THE BUTTERFLY EFFECT*
🙏🏻
Dark energy is like anti gravity , expanding the universe , it is uniform throughout the universe , although it's density is very very less , as it is uniform across the universe it accounts for 68% of the universe whereas our normal( baryonic ) matter accounts only for 5% and dark matter only accounts for 27% . Dark energy like Matter doesn't interact with electromagnetic field and interacts with only gravity so it had been discovered. The dark energy isn't also detectable directly as it doesn't interact the light and other types of radiation we use to detect the presence of amy thing.
Sir Vedio Was Super Duper Awesome😀😀Thank You 😀😀
0:43😂😂 1:28 🤣🤣 phele fursat mai nikal was op sir🤣🤣
5:50 Contraversive , Contraversal😆😆🤣🤣
Peace✌️✌️
EAGERLY Waiting Sir,,
Isme lagath Anti Abhishek Sir hoge😂😂maza ayega😀😀
Peace✌️✌️
Amazing 😀 5:59 awesome 😄😄
Sir please make a video on information about DNA
Just wow swag
Excited for this one👌👌👌👌
So so sooo much excited!
Excited for the session!🤩
👑Abhi👑 sir is best physics teacher. 🙏🏻
#peace #sifi #jaishriharsh
Eagerly waiting!!
Fabulous session sirji
Sir jaise pehle hum aapko chahte the waise hi an hum Anti - Abhishek sir aur Dark Abhishek sir ko bhi chahne lag gye hai☺☺☺ lekin aap bura mat manana hum aapko abhi bhi waise hi chahte hai♥️♥️♥️
Aapki jagah koi nhi le skta😄😄😄
Keep smiling :)
yess true !!!!
I have a question that IS NEGATIVE ENERGY AND DARK ENERGY SAME ?
PLEASE MAKE A VIDEO ON NEGATIVE ENERGIES TOO !!! #NegativeEnergy
yes I also want
Fantastic
As always loved it 🥰
This is gonna be exciting...🔥
Very excited for this interesting video. Eagerly waiting for it
Sci-Fi is one my favourite series.
Thank you sir for all such wonderful videos
Balle Balle sir peace ✌️
Dark energy is with dark matter as opposites attract.....
By the way, awesome session Abhishek sir 👍👍👍
Good thought sir
Eagerly waiting for this awesome session ✌️🔥
Sir pls make video on Pauli exclusion principle
It's really a very knowledge giving video
Waiting for the session sir 👍👍👍
Waiting for it Abhi sir🙃
Eagerly waiting!😃😄
Intresting dark energy.🤔😳
Awesome and fun session sir 💕 thank you for all this knowledge you provide us 🤍
Awesome session sir 👍👍👍
Extremely very excited!!! 😀
Video was super amazing sir....☺️❤️
loved it...❤️❤️
Wooo!!!!
One more superp session on Dark energy is on the way......
Was waiting for this from so long!
Eagerly waiting!!❤️😄
eagerly waiting to know about it🔥🔥🔥
Balle Balle🙌🙌🙌
So interesting session
Amazing sir 😃
What a fun and unique way of explaining this super exciting topic just loved it ! Keep going sir I want more such videos 👍👍
Waiting for the session since sci-fi episode 10 came...... Finally Aa hi Gaya..
Balle balle
And peace ✌️
Dark energy is with Dark matter ☺️😊The session was amazing sir ....Balle Balle
Alternative Explanation of Dark Matter, Dark Energy, Gravity and Accelerated Expansion
- 4-D Hypershere model of Universe can easily explain Gravitation, Dark Matter, Dark Energy, Void, Accelerated Expansion and even the reason why the measurement values of Expansion Rate are around 70 km/sec-Mpc
Dark Matter, Dark Energy, Gravity, Void and Antigravity, ... all these are same phenomena. They just look different.
The problem of modern physics is they're trying to explain everything with particle physics and the physics is being cornered more and more to the dead end. To escape the dead end, they invent or design another imaginary particle in vain instead of trying to revise their way to approach to the problem.
I agree to the idea that the interaction between mass and space must be explained with quantum mechanics.
But that doesn't mean gravity is the QM phenomena.
That's because gravity is not a force.
Dark Matter, Dark Energy, Gravity, Antigravity, Void... all these are just joint effects of the expansion of the Universe and the curvature of spacetime.
Details are given below.
Einstein’s theory of General Relativity states that spacetime is curved by the presence of mass.
This curvature influences the motion other objects with mass and gives rise to gravitation.
Thus, gravity is a result of geometric features in spacetime.
However, we also observe gravitational effects - curvature of spacetime - in areas without any detectable mass.
This has given rise to the concept of dark matter, which is matter that does not interact in any detectable way with normal matter, except through gravity.
So, there is some large quantity of dark matter scattered throughout the universe, which curves spacetime and causes gravitational effects just like normal matter, but we cannot see or detect it with any known method.
An alternative theory to the identity of dark matter is proposed - it is not matter at all, but rather an intrinsic curvature of spacetime.
In other words, spacetime is not naturally flat. Even in the absence of matter, we observe some inherent curvature of spacetime.
So, the question is now - why is spacetime naturally curved? Why is it not flat in the absence of mass?
The universe is 4-dimensional, with 3 spatial dimensions and one dimension in time.
Rather than consider time as a linear dimension, we can consider it as a radial one.
Therefore, rather than describing the universe with a Cartesian coordinate system, we describe it with a 4-dimensional spherical coordinate system - 3 angular coordinates, φ1, φ2, φ3, and one radial coordinate in time, t.
We live on the 3-dimensional surface of a 4-dimensional bubble which is expanding radially in time.
Thus, the Big Bang represents t=0, the beginning of time.
The crucial point is that the expansion of the universe is not homogeneous in all directions.
The expansion rate at one point on the bubble’s surface may differ slightly from another point near it.
The universe is only roughly spherical in 4 dimensions, the same way that the Earth is only roughly spherical in 3 dimensions.
The same way we observe local mountains and valleys on the surface of Earth, we observe local “mountains” and “valleys” on the surface of the universe bubble.
The inhomogeneity of the expansion of the universe has given rise to natural curvature of spacetime. This natural curvature causes the phenomenon of “dark matter”. “Valleys” in spacetime pull matter in, similarly to the warping of spacetime of massive objects.
So “dark matter” is really “valleys” in spacetime that are expanding slower than the regions surrounding it.
These valleys tend to pull matter in and create planets, stars, and galaxies - regions of space with higher-than-average densities of mass.
Conversely, “mountains” in spacetime will repel matter away, an “anti-gravitational” effect, which gives rise to cosmic voids in space where we observe no matter.
Each point on the surface of the universe bubble traces out a time arrow in 4-dimensional space, perpendicular to the surface.
These time arrows are not parallel to each other since the universe is not flat.
This causes points to have nonzero relative velocity away from each other.
It is generally accepted that the universe is expanding faster than observable energy can explain, and this is expansion is believe to be still accelerating.
The “missing” energy required to explain these observations has given rise to the theory of dark energy.
The time dilation caused by non-parallel time arrows can be proposed as an explanation for dark energy.
Alternatively, dark energy is real energy coming from potential energy gradients caused by non-parallel time arrows.
As a sanity check, we can calculate the expansion rate of the universe based on the universe bubble model.
Since the radius of the universe bubble is expanding at the speed of light in the time direction, it increases at 1 light second per second.
Therefore, the “circumference” of the 3-dimensional surface increases by 2π light seconds per second, or about 1.88*10^6 km/s.
This expansion is distributed equally across the 3-dimensional surface, so the actual observed expansion rate is proportional to the distance from the observer.
At present, the age of the universe is estimated to be 13.8 billion years, so the radius of the universe bubble is 13.8 billion light years, or about 4233 megaparsecs (3.26 million light years to 1 Mpc).
Thus, we can calculate the expansion rate of the universe, per megaparsec from the observer, as:
Expansion rate = ((d(circumference))/dt)/radiusofuniverse=(1.88*〖10〗^6 km⁄s)/(2π*4233Mpc)=(1.88*〖10〗^6 km⁄s)/26598Mpc=70.82(km⁄s)/Mpc
The popularly accepted empirical expansion rate is 73.5 +/- 2.5 km/s/Mpc, so our calculated value is close.
There may be some additional source of expansion (or observed red shift) to make up for the discrepancy. For example, if two adjacent points have some gravitational gradient due to non-parallel time arrows, then light passing through these points will be red-shifted.
- Cited from www.academia.edu/82481487/Title_Alternative_Explanation_of_Dark_Matter_and_Dark_Energy
Noicë
NOBODY CAN MATCH YOUR YOUEXPLAINATION , OP 🔥🔥🔥SIRJI! HATS OFF!
Sir you are giving so much information in very easy way thank you👍😊
Awesome session sir 👌
This video is full of information.
Thanks 🙏🙏
Another video on dark energy.
Eagerly waiting for the wonderful video 📸✨✨
✌️
Amazing video!!! Loved it 😀
I am eagerly waiting for this
Eagerly Waiting...😍😍
Much Excited... ❤️❤️❤️
Sir it was very nice video
Loving this series of sci-fi....I think dark energy is neither with anti matter nor with dark matter ..
Thank you sir for the amazing information ....sir plz plz can make a video on Quantum physics
Dark energy for side to anti Abhishek #OP-ANTI-ABHISHEK
*Eagerly waiting for an Awesome session✌*
Another amazing session by Abhishek sir 🤩🤩
egarly waiting for this amazing topic
😍💥
Oh WOWWW!
Eagerly waiting⏳❤
Hello sir my name is saksham.... Sir you are so great.... I think you also like universe and interested in astronomy like me 🤩🤩👍🏻👍🏻
Video on higgs boson please
Amazing session sir as always sir ❤❤🥰and it is really help us and i am very attracted toward space and curious too 😊😊🤗
Peace✌✌✌✌✌✌
Sir your videos are outstanding and mind blowing suppeb sir
Cool sir
really excited for this session
balle balle
peace✌✌✌
5:46 yes sir, I actually made a new theory for gravity, which proves that gravity is the basic property of space
Eagerly Waiting for another amazing video... ❤️❤️
And also want to see anti abhishek 🤩🤩
I know this one , interesting to know 🤔
Next level explaining by akr sir 😍😍😍
Dark energy 🅾🅿!!
Eagerly waiting
Balle Balle Tarara
Awesome Presentation Sir!! 🖤🖤🙌You are soo creative and amazing!! So glad that we have a teacher like you, Sir! Thank you God! 🥺🖤
Also, this is the 200th video on Spectrum Channel!!! BALLE BALLEEEEE🥳🥳🥳🥳💞💞💞💞
Beryy Beryyy excitedddd foll the session 🙂🙂🙂😅
Sir do videos in English too🥺🥺not only people who know hindi are watching..people who can't understand hindi also watching.. bcoz you r such an awesome teacher 💚🥺
Pls do videos in English 🥺❤
Sir,make a video on elastic potential
Confused Totally, Abhishek Sir.
May I watch it once again.
Super excited
Waiting to meet dark abhishek sir again😀😀
Dark energy Bhai .. even Janta is democratic we support both dark-abhishek and anti-Abhishek 🤣🤣🤣 ...
Sir in this series, new characters are evolving... I admire it ... The first part was hilarious.🤣🤣 The session was tremendous😋.. enjoyed it a lot. Gratitude to you and the back team for making us understand things... in a unique way 🤠.
Very curious to know the answer 😀
Yeah!🤘🤘
Very excited to meet dark Abhishek sir once again!!🤩🤩
I wanted to know more about different theories
Thanks for this sir! for provide such a video about the dark matter and Dark energy . I know about the dark matter. It's helped me to know who scientists role plays to discovered a Dark matter? . It's helped me a lot. Amazing session 👍...
We are with matter✨️
Yeahh!😆Dark energy!!
Eagerly waiting for premiere!!! 🤩🤩
Balle balle✌️
❤️
Very amazing video by abhishek sir
Sir please make a video on Mariana trench World's deepest sea
Sir dark matter ke saath...mera favourite show hai miraculous usmein bhi creation and destruction ek saath aate hain so attraction and repulsion seems impossible but I think will create a lot of power and energy...and amazing sir 😄😄😄🎉🎉🌟🌟🌟✨✨✨✨
Hurrah!!!!Dark energy🤗😍🥳🥳
Eagerly waiting for this 😀
Sir Anti Abhishek kese hai abhi😂
#justiceforAntiAbhishek😂😂🤣
By the way sir Hosla video was jhakas🤩🤩...
Sir app kitne multi-talented ho😲😲
Ap ko sab ata you are a dancer , rapper, amazing teacher and a supperbb mentor😀😀
wah reee wahh
awsm editing and great efforts took by all
awsm vdo sir
OHH BHAI .......
MAZZA AA GEYA 😍😹🔥
Sir please make a video on supernove that is going to happen on year 2022 this supernove can be seen by naked eye Sir Plz plz