#3 Chiara Mingarelli - NANOGrav, Background Gravitational Waves, Black Holes

In this week's episode, David is joined by Chiara Mingarelli. Prof Mingarelli is currently moving from the University of Connecticut to Yale University and is theorist working on the so-called background gravitational wave signal. Predicted for decades but incredibly elusive, we are on the cusp of detecting this signal for the first time. Learn all about what this signal is and what it means for astronomy in today's episode.
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[@vlogbrothers]

So exciting. A whole new way to see the universe is coming 🎉

[@yeetmcyeetson8822]

First time I've seen a hyped announcement for an academic paper(??)

[@CoolWorldsPodcast]

I just love the fact they’ve built a *galaxy sized* gravitational wave detector out of pulsars.

[@maxv9464]

Oh hey, two of my absolute favorite science channels at once! Y'all are awesome.

[@MirorR3fl3ction]

You know the science is hyped when even Hank is geeking out in the comments

[@geoffreymartin6363]

Cheers for directing me here Hank! I hadn't watched the podcast before but I watch Cool Worlds all the time. Man it's cool living in the future ain't it

[@TRFan26]

I enjoy the Cool Worlds channel, but I have to say I’m really enjoying these long-form podcasts, too.

[@therealbettyswollocks]

Same. Love the long-form format, gives more time to dive into some detail (most of which I have zero understanding of!)

[@Splucked]

What a great guest. As a lay person, I thoroughly enjoyed this conversation. Very much looking forward to your next podcast together.

[@dpie4859]

Your guest is SO good at explaining things. Interesting topics and great conversation!

[@rpgolden]

She is delightful, I love seeing people perk up as they hit some point they think is especially cool

[@jameshoey303]

Thank you for this wonderful podcast.. this format is one you should continue with.

[@stephanieparker1250]

Your guest is great! Bring her back for more talks! 🙌🌟💫

[@zephyrandboreas]

Love the long format interviews with other experts. I'm a molecular biologis but have been in live with physics for the longest I can remember. This is a fabulous channel.

[@markusmencke8059]

There should be many more scientists like you and Chiara communicating what they do, in the way you do. So much to learn, even at the most basic level… and this way, it is fun. Thank you for this. ❤ Looking forward to Thursdays announcement (tomorrow). 🙂

[@jssomewhere6740]

Thanks Professor Kipping. You have elevated a subject I have always loved to something I can't get enough of. I was never able move forward with my education. So I'm not in the same league most of your viewers are in. Maybe that makes it awe inspiring for me. Even though I need to get a bigger drool cup to get all the way through these longer shows. Y'all are over heating my ole brain. That is a good thing, probably. Thanks, great guest also.

[@danielcuthill1]

Great conversation. Thoroughly enjoyed the entire bit.

[@abdullahh283]

I very much enjoyed this podcast. Really well done!

[@thewisecow6323]

I assume these findings (using pulsars) are also accounting for the acceperating expansion of the universe as well? I can't even begin to imagine the maths involved in these calculations, staggering precision. Very impressive stuff.

[@madsringswaldegan1058]

this was just so much fun to listen to!!

[@jeffpurnell864]

I love this channel. Great stuff. Thanks 😊

[@TonyNaggs]

Nice to hear discussion of anisotropy. 😀

[@Realistic_Management]

Glad to see you're highlighting female scientists in Astronomy! Much needed. I'd love to hear you talk to someone from History and Philosophy of Science on the diverse, culture-spanning origins of Cosmology (i.e. Persian, Chinese, early-European ventures in the field). Cheers!

[@ngangtruong1747]

Loved the way its explained. Thnks

[@TheMessiah666]

That was an awesome video She was a delight to listen to

[@JasonCunliffe]

12:12 WHhuhoooo} euppP !!

[@richardbare9911]

Much prefer the long form content for what its worth

[@livingart2576]

Love all things Cool Words. 😀

[@maciejgajewski3722]

Blind post Just for the algorythm, will watch later for sure!

[@andreybogoslowsky]

Inspired by a photograph of a prominent photographer from 1930s. As my personal life changed dramatically in 2017 I started looking for new subjects for my paintings. I devoured my library. I often used photographs from 1930s to create sketches for possible big projects on canvas. My spontaneity is actually controlled to milliseconds. When ppl make a joke by asking me: -“and how long did it take to paint this painting?” My answer will be: -“it’s been 40 years I am trying to master one brushstroke and one line to express feelings, ideas, beliefs, desires, fantasies, laude thinking. You’re looking at the results of 40 years trying and succeeding, trying and failing, and trying again. Tireless struggle for perfection, where perfection itself is truly imperfect. “In nature utilitarianism is more important than the perfect state of an event, or looks/shapes of an object.” The last is a very important observation of mine. Bogoslowsky

[@LaboriousCretin]

Good video. I would want to know if they have or can detect gravitational super waves. It's similar to ocean super waves. When multiple waves stack up into one big wave. The other would be how do they model dark mater interactions with gravitational waves. Do they plan on building more ligo like facilities to map gravitational waves or other projects?

[@qwerteria7366]

how fast can gravitational waves be? are they also capped at lightspeed or is it like spacetime itself?

[@CoolWorldsPodcast]

Yes they travel at c

[@MeissnerEffect]

The mystery of Mother. Mother Nature ✨🦋. How cleansing it feels away from societies’ myriad ills. Bring on the turbulent quasar. Come now Trappist, allow JWST to speak with your children! Thank you for great hosting, guests, long-form, hard-work and passion. Light and Peace ✨🦋

[@keegs53]

At 14:55 squishing and squashing of matter because of gravitational waves is mentioned. Do we know if that is the space between atoms themselves changing, or if it’s the actual fabric of atoms themselves being squished and pulled by gravity? Like, is it dots that move closer and further apart, or is it atoms being manipulated like modelling clay? (Less extreme of course but you get the picture)

[@yy-hj4br]

For those confused the context is using gravitational waves to see the cosmic background.

[@williamflamholtz5762]

Such creative science

[@nigh7swimming]

Would we be able to detect some kind of warp drive usage across the galaxy, if there was one?

[@smkolins]

quasars are not randomly oriented in the universe. Presumably mergers in those cases might be aligned somehow too. Would this constitute a "cosmic variance" ?

[@smkolins]

and what about the expansion of the universe - is that "redshifting" the gravity wave frequencies from farther and farther away?

[@ayac.4998]

Found this podcast via Spotify. It really annoyed me how you're constantly cutting her off so I decided to search for a way to give you this feedback.

[@solidfuze99]

She is beautiful and super intelligent..wow that's magical

[@Jason-gt2kx]

Novel Dark Matter Hypothesis Dark Matter is simply unaccounted for gravity. GR states that gravity is the consequence of the curvature of spacetime. Is it possible that the structure of spacetime itself could be warped without the presence of matter? Spacetime has been shown to react like a fabric by warping, twisting, and propagating independently of mass, and all have been proven with observations from gravitational lensing, frame dragging, and now gravitational waves! Fabrics can also be stretched, pressured, and/or heated to the point of causing a deformation and losing its elastic nature. All of these conditions were extreme during inflation, so it is plausible that the “fabric” of spacetime analog could extend having its elastic property have hit a yield point leaving pockets of inelastic spacetime geodesic that cause gravity without the presence of matter? Therefore, if gravity is strictly the consequence of the warped of spacetime, and fabrics can be permanently overstretched, then those empty warped geodesics would create gravitational wells independent of mass. My hypothesis of DM is subatomic black hole imprints of the quantum fluctuations that popped in at the moment of inflation. The CMB shows where the hot dense regions were they created the galaxies. They would have been the initial cause and location of the warping. These imprints would be clouds of quantum sized floating fixed geodesics, so they couldn’t expand or evaporate. Perhaps nothing has been detected because there is nothing to detect. GR wouldn’t require modification because DM would just be an extension of how spacetime behaves at extreme conditions. No MOND, no WIMPs, and no parallel universes, just empty spacetime deformations that produce gravitational wells to help jump start galaxy accretion processes. Zwicky may have named is Missing Mass correctly since he detected some gravity without mass present to cause it…

[@MongoosePreservationSociety]

Open your gravitational feelers

[@PhiltheMoko]

Comment for the algorithm

[@ancientbuilds3764]

How quaint. Gravity is possibility. More mass=less possibility.

[@ancientbuilds3764]

Just to throw a glass covered brick in here. All particles come with an opposite. Spin change is instant. Universal homogenous particles as it is. A 1D particle cannot interact. 2D can, but within it's reference. 3D can, throughout time.

[@JasonCunliffe]

12:12 WHhuhoooo} euppP !! 🫐🎵 🌊 👋 2 black 🕳️🕳️ holes colliding

[@t0nyc0nde]

Am I alone in thinking that David Kipping is EXTREMELY attractive?

[@andysneddon8288]

My question is, why did KZbin unsubscribe me from a non-political channel? I've just caught up with how many Cool Worlds I have missed in the last 9 months?

[@sadomars2446]

Time stamps in the future please.

[@CoolWorldsPodcast]

If someone wants to suggest them I'll add

[@chrissylazar]

David, this is exactly what "they" have been telling me over & over this past year. these gravitational waves are important for communications. I know I have no degree in science. However, this is what they have been telling me for the last few years. "Gravitational waves" are consistently being shared with me. during that, I actually see that in my mind. I know that they keep telling me this. I hope it helps someone. I know you don't believe me, but that's alright.

[@joostonline5146]

Always ask any cosmologist if they believe in aliens.

[@eternisedDragon7]

No, unfortunately on that 1 topic about contact, I feel like I have to tell people the truth, namely that it's not true that professional physicists sometimes respond back to one's e-mails to them on physics subject matters, and that instead, based on my personal experience, they really seem to never respond just a single time even after several months, even if it's about once in a civilization's entire life-time breakthroughs on dark matter (i.e. neutrinos) or dark energy (i.e. the between galaxies exchanged neutrinos' to them transferred outward impulse as they get caught in black holes, with the in this way induced expansion rate of the universe fitting to the size and emergence frequency development curve of black holes since the big bang, but also transferring part of their impulse during gravitational-lensing-like swing-by around a galaxy, pulling galaxies away with them), or the resolution of the cosmology crisis. Trust me on that they will not respond to you, even if you contacted thousands of them for weeks like I did. If there is any person in the world that knows this, it's me.

[@lizardlegend42]

Dude you don't have to self report that you're unlikeable so hard. You weren't asking questions out kf genuine curiosity, you were spamming thousands of people with your pet theories and placed on a spam list 😅

[@eternisedDragon7]

@@lizardlegend42 The former is of course nonsense, but if the latter is true, it's a historical disaster.

[@bluesque9687]

Gay tshirt of the day!

[@dixiedad]

If you want the DATA on the uap's you left out your recent video here is the Gov link to it all www.ncbi.nlm.nih.gov/pmc/articles/PMC7514271/ Couldn't find a email for you. The UAP would have then reached a maximum speed of about 46000mph during the descent, or 60 times the speed of sound

[@simpvicious875]

nerds flirt weird