Відео

00:00 ---> Mathematica, god, why would someone not want that program? That was a cool program. But I have to say I don't that teachers attitude!

Bro came😂late 10:57

Voice issue. There is no sound in some parts of the video, even though it is clear that the instructor is clearly speaking something.

Beautiful lecture

Can you please link the slide deck in the description? Thank you. 😊

Nice lecture. Though it could be a tad better. Possible/known constraints. Primordial black holes would have to rule out hawking radiation and a few other things. Nice to see she touched on the fermi bubble though didn't get to the energy density of phased space and casimir and such. Though I admit there are a lot of places to look and most likely some combination of effects to account for the whole. Neutrino floor would be a good place to look for new physics showing up. CNB ( cosmic neutrino background ) mapping might give new clues also. Keep up the good work.

I also want to do phd from this institute but I haven't any idea regarding admission I want to do phd lifescience from this institute but I think it's not possible for me coz of I belong to lower middle class family and no anyone understand my dreams but I really want to give my country something unique like prevention related to aging in human,how to control the oncogenic property of cancer cells and also want to solve the problem regarding these all things ,if you anybody give me any instruction/help for achiving my goal then I'm very thankfull.

Hope next year i will be there and be a part of this type of amazing lectures form the best professors (Researchers) from all over the world. IISC is a heaven for all who want to pursue their carrier in research 😍😍😍😍 Hope next year I will be there

What we consider DM is caused from Dark Energy and the drag of massive spinning objects... our Big Bang is expanding within an Eternal Inflation field and massive objects or rapidly spinning objects cause drag as they press into the Inflation field.

Thinks a lot about the universe, especially black holes, string theory, cosmology. Many questions come to mind.

The lecture benefited me a lot. Thank you very much.

Black hole is such a mysterious thing, about which we still don't know much.

I really wanted to study astrophysics, but didn't. But now I am studying physics.

Dark matter is just regular mass that is dilated. Dilation/gamma is the phenomenon our high school teachers were talking about when they said "mass becomes infinite at the speed of light". This does not mean mass increases, it means mass becomes spread throughout spacetime relative to an outside observer. Time dilation is just one aspect of dilation, it's not just time that gets dilated. Even mass that exists at 75% light speed is partially dilated. It occurs wherever there is an astronomical quantity of mass. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers. Our own galactic center is dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. In other words that mass is all around us. It's the "missing mass" needed to explain galaxy rotation curves. Dilation does not occur in galaxies with low mass centers because they don't have enough mass to achieve relativistic velocities. It has been confirmed in 6 ultra diffuse galaxies including NGC 1052-DF2 and DF4 to have no dark matter. In other words they have normal rotation rates.

Good lecture

Excellent lecture

Excellent work Professor tracey 🎉😊

Tq sir

please use mic

What's DM here? Full form?

Highly informative session!

❤🎉

I'm sanskrit teacher but i like physics. Because in shri mad bhagwat puran there is a broad information about" the theory of relatively." अहम् संस्कृत शिक्षक: ,किंतु भौतिकी मह्यं रोचते। अहम् इतोSपि ज्ञातुमिच्छामि ❤

13x5=65

We derived value lower than plank constant in paper on the development of photo electric effect

Their could be no cosmological constant unless dark energy

Lecture 2 link please

Im a 12th grade student I want to pursue Astrophysics + quantum mechanics for my graduation(expecting suggestions from this channel head and viewers as well) May i know which course to choose I was facinated about the lecture, i was only able to understand bit of technical terms none other than

Quality is very very poor

Sir i am sakthivel from unom How to clear the csir net chemical science exam sir Could you please tricks and short cut method sir

Umm the audio quality is really very poor , green board is not clear too 😢

Sir, one query: If principle of equivalence holds good at the event horizon of a black hole, then is it not violating the basic definition of a black hole where we say nothing can escape from the event horizon. I may sound naive. But please clarify my doubt.

What do you mean by CHEEP*

No SSB !!

Wow very informative!!

Professor, please consider improving the quality and production of your audio and video!

Here information is quantum state of any one particle like an atom or may be the quantum state of the whole universe itself. But let’s consider the quantum state of one atom meaning spins, energies and probability of position of its subatomic particles. We must understand that there is a law of conservation of information meaning information of quantum state of an atom is not lost meaning information of quantum state is preserved and its predictable. If information of quantum state of an atom is known, its history states and future states can also be predicted. This can be done using Shrodinger’s wave equation. So if any information, an atom per say, falls in a black hole, eventually i.e over unimaginably large time scales, that information is lost as per general theory of relativity. But quantum mechanics does not allow loss of information. Is this not contradicting? Is this not paradoxical!! Holographic modal of black hole or Universe can give some explanation to solve this paradox. This lecture is about that, as I understand.

please try to not walk back and forth, it is very distracting

4 out of 5 people in frame have specs

Quantum Field Theory ... Probably it will take Lifetime to learn 💀 Oh No here we go again ...😭

Isase better way me explain kr dunga open challange de accept kijiye Quantum mechanics me aaj tak koi v cross nhi kr paya h

good video

Dark matter is regular mass that is dilated. Dilation is the phenomenon our high school teachers were talking about when they said "mass becomes infinite at the speed of light". This does not mean mass increases, it means mass becomes spread throughout spacetime relative to an outside observer. Time dilation is just one aspect of dilation, it's not just time that gets dilated. Even mass that exists at 75% light speed is partially dilated. It occurs wherever there is an astronomical quantity of mass, this includes the centers of high mass stars and the majority of galaxy centers. This has been accepted for a long time. Dilation is occurring in our own galactic center. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. In other words that mass is all around us. More precisely, everywhere you point is equally valid. It's the "missing mass" needed to explain galaxy rotation curves. It doesn't occur in galaxies with low mass centers because they do not have enough mass to achieve relativistic velocities. It has recently been confirmed in 6 ultra diffuse galaxies including NGC 1052-DF2 and DF4 to have normal rotation rates, in other words they have no dark matter/dilated mass. Mass is a clingy thing thanks to gravity. It makes sense that dilated mass would exist as a halo around galaxies.

great lecture. just please move around less. thanks.

Also, it can be made more interesting by using or highlighting some curiosity of folks working in these areas like why it is so excited to understand rather just to accomplish academic goal.

I would suggest to go through some most popular figure like Brian Cox, Roger Penrose and folks videos to understand these interesting concepts... Search their recent videos & you will understand from general use perspective like why everyone should understand all these concepts irrespective you are in college or in profession or in your old age...

20:09 guy was like 😂😂😂

Orientation it self made it boring... Start with simple concept and its notion with possibly application and start the subject which will cumulate the interest among students about the subject. This is problem of majority IIT and IISc profs. This might be probably due to lack of industry and practical experience.

Me History student with scientific temper. Always curious of science particularly physics.

I am Chartered Accountant and I am watching this for my children and also for myself because I am facinated about Universe.