Відео

Love your content. Would love some degenerate stellar matter videos. Evolution of accretion into balls of neutrons and how they play a galactic role into the substrate of the galactic environment. What are neutron stars role exactly? How do they contribute?

This was a great episode, I love these early universe explanations, they always raise other questions in my mind however. I struggle with photons colliding as the Pauli exclusion principle doesn't apply to photons or gluons as they are massless. Hence we have lasers. Though gluballs seem different again. And weak force bosons require energy for creation, do they take it from the photons or from spacetime itself? Thoroughly enjoyed it Mr. Kendall, thank you.

1:41:45 "the sun takes 2 1/4 million years to orbit the milky way" Uh no. The sun only makes it 1% of the way around in that time. You have made an error.

Great ❤❤

What's the mass of a quark? Is it close to the size of an electron?

I've been wanting to write a blues song about neutrinos. "I must be a neutrino baby... cause you don't seem to notice when I pass through"

Big bang nucleosynthesis

The aliens would firehouse whatever they drink out of their nostrils and roll on the floor screaming with laughter, when they learn we call our galaxy “The Milky Way”.

I recall the time of the neutrino capture in Japan was off by several hrs from all the Western nations impacts. It was thought at the time that Japan had mistimed the event somehow. Now I don't believe that was the case. But probably as the gamma ray burst was emitted that further neutrinos were emitted at a different time. This should really be examined in the model calculations. Every time examination should be calculated in the model, which shows to me not every thing has been understood fully.

Very good videos, can you put them in series so as it will be easy to follow from the first to ......

Thanks for the history, very interesting by itself.

The time scale for these events go from billions of years down to milliseconds. Incredible to contemplate.

Definetely not recommending this as a go-to-sleep vid. It's too much interesting for the brain to just shut off. Thanks Mr Jason, you got my sub :)

i love this lecture so much, i have listened to it more than 10 times and i understand it better and better every time

2:34:00 need this image on a shirt.

Dude.

What about direct urca process?

Why can people see northern lights with naked eye in Belgium these days? Is it the sun itself, or its magnetic field of our planet ?

I teach GCSE and A-level Astronomy and watch these videos all the time.

@Jason Kendall Thank you for explaining some things for me, so much to learn more

I just want to protest the megaparsec. I mean well all know the age of universe, and speaking in Mly and Gly just seems more natural. And while the light year is a unit tied to the 🌏, it is in a natural way. The parsec is also tied to the 🌏, it also involves a man made unit, the arcsecond. I guess the only truly natural unit of time is one over the Hubble constant…

This is awesome. I loved the detailed physics of what is actually happening step by step as a star collapses.

Hello from within 200Mpc of this broadcast!

Hello professor Kendall, I showed up to the “wrong” lecture hall again. You are seriously making me want to take an astronomy course, even at my age of 49….

You should read Aftermath by Sheffield. It is a great fictional account of Alpha Centauri do just this. Highly fictionalized but an outstanding read

From the nature of the universe to the birth of nature. Philosophy meets science. Jason, you’re a content machine!

Broad ranging- from the nature of the universe, to the birth of nature. Philosophy meets science. Jason you’re a content machine!

Absolutely top tier lecture! My favorite YT channel right now.

First! - This is a fundamental comment of the cosmos.

years ago, I had a "nuclear scan" where they injected a radioactive tracer into my spinal column and then scanned me with a camera/detector that would pick up the radiation from that tracer. Later that day, coincidentally, I had a CT scan of my sinuses (I had a sinus infection at the time) while the scanner was on... I had x-ray vision. I could see through my eyelids, through the machine... it was wild. The techs thought I was crazy. But I recognized the blue color my vision had as Cherenkov radiation... so I looked it up to find out that's really a thing. It was wild. It only lasted while the x-rays were on... and I could only see hard metal objects... but it was wild. Like right out of a movie or something.

Nice overview. The sound is a little harsh though, sibilant and echo-y. Suggestion : use a softer warmer microphone, and set your mattress against the wall.

Expertly written & narrated. Very detailed, yet understandable, and superbly illustrated. Top notch- Bravo Jason Kendall!

anyone else wake up here

Thank you professor 😎, neutrinos getting trapped, amazing.

If I am one light-year from the supernova, I will see the light in one year, the apperant luminosity is 2.5 times of sun, the shock wave won't arrive for another 29 years. I don't think I will last long enough to be killed by the shock wave. There must be some other fast lethal stuff coming from the SN.

Yay! Supernovae!

I love your lectures! Thank you for sharing!

Second! Love your work. I've learned so much over the past few years because of you. And the shots at creationism are based.

Heinrich Wilhelm Matthias Olbers….. who’s mister OLBER ?

Sorry, but does that nucleosynthesis diagram state that LEAD is partially made in dying low mass stars? HOW? Why are all the light elements from massive stars and the heavier ones from lower mass stars?

I feel like I walked into the wrong lecture hall, found out the topic was WAY more interesting than the class I actually signed up for, and liked it so much that I just can’t leave. I want THIS class to adopt me.

FUCK YEAHHHHHH

Yea!

Thank you for sharing your knowledge, sir! Really enjoying the series so far.

Dr. Kendall - Thank you so much for all the hard work you put into these great video presentations. Since I have viewed and downloaded all of them to-date and find that sometimes a new appears that has the same title as a previous one, would it be possible for you to mention in the sub-title description when the new video replaces and existing one? Thanks !

What was that at 8:30? Didn't catch that.

My man ❤ As a lab technician I can learn so much astronomy on my commute or @home. Many many thanks 4 providing free quality education to far away places like to me in Germany ❤

Neutrinos can have a lots of energy, the biggest that was detected in Japan was probably 350 EV ish. I was hoping to know how such energetic neutrinos are formed. The biggest caught in the Antarctic was like a base ball, hitting the mesh.

Perfect! I just got home from work. Now to settle down n learn a thing or two while drifting away. Thanks, professor!

2:15:00 I hear neutron star collisions are getting more credit for making heavy elements.