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Space oddities - with Harry Cliff

  • เผยแพร่เมื่อ 20 พ.ค. 2024
  • Join University of Cambridge and CERN physicist Harry Cliff as he explores the cosmic anomalies currently perplexing scientists.
    Watch the Q&A here (exclusively for TH-cam members): • Q&A: Space oddities - ...
    Buy Harry's book here: geni.us/5hGEtI
    This Discourse was recorded at the Ri on 27 March 2024.
    From particles of astonishing energies erupting from the depths beneath the Antarctic ice to enigmatic forces subtly tugging at the fundamental building blocks of matter, the universe offers us an ever-growing compendium of cosmic riddles. Notably, stars are hurtling away from us at velocities that challenge the boundaries of explanation, leaving scientists astounded by the inexplicable.
    Harry will guide us on a journey that spans continents, introducing us to the brilliant minds who have dedicated their careers and reputations to unraveling the mysteries shrouding these cosmic anomalies. Are these cosmic quirks flukes of nature, or do they allude to the hidden parts of the universe we have yet to discover?
    Through Harry’s trademark wit and wonder, he opens the door to the tantalizing possibility of untold cosmic realms waiting to be discovered.
    If you'd like to watch this video without any ads, and support our charitable mission at the same time, you can do that here by becoming a TH-cam channel member for just £2.99 a month: • Space oddities - with ...
    You'll also get ad-free previews of all our videos, along with exclusive access to scientist Q&As.
    Harry Cliff is a particle physicist at the University of Cambridge working on the LHCb experiment, a huge particle detector buried 100 metres underground at CERN near Geneva. He is a member of an international team of around 1400 physicists, engineers and computer scientists who are using LHCb to study the basic building blocks of our universe, in search of answers to some of the biggest questions in modern physics. His first popular science book, How To Make An Apple Pie From Scratch, was published in August 2021. From 2012 to 2018 he held a joint post between Cambridge and the Science Museum in London, where he curated two major exhibitions: Collider (2013) and The Sun (2018). He has given a large number of public talks, including at TED and the Royal Institution, and made numerous appearances on television, radio and podcasts.
    Discourses are one of the Ri’s oldest and most prestigious series of talks. Since 1825, audiences in the theatre have witnessed countless mind-expanding moments, including the first public liquefaction of air by James Dewar, the announcement of the electron by JJ Thomson and over 100 lectures by Michael Faraday. In more recent times, we have had Nobel laureates, Fields medal winners, scientists, authors and artists - all from the cutting-edge of their field. Discourses are an opportunity for the best and brightest to share their work with the world.
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  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 877

  • @gordonicus4637
    @gordonicus4637 หลายเดือนก่อน +50

    I love it when clever people make their work entertaining and understandable to ordinary folks. Thank you Harry!!

  • @maurizioalbera
    @maurizioalbera หลายเดือนก่อน +114

    How I wish most university teachers were like you. 54 minutes flew by without a single loss of tension. Thank you so much.

    • @MarkkuS
      @MarkkuS หลายเดือนก่อน +7

      It's much easier with history and pop science

    • @ianthepelican2709
      @ianthepelican2709 หลายเดือนก่อน +6

      He could have talked a mite slower and I would have still been as attentive.

    • @marcdraco2189
      @marcdraco2189 หลายเดือนก่อน +3

      Abolutely. I want to put that on again.

    • @insane_troll
      @insane_troll หลายเดือนก่อน

      And the Hubble tension still hasn't been resolved!

    • @voornaam3191
      @voornaam3191 หลายเดือนก่อน

      ​@@insane_troll Then SOLVE it, instead of complaining. Duh.

  • @websciencenl7994
    @websciencenl7994 หลายเดือนก่อน +51

    This lecture is so fantastic. I finally understand 1) how the age of our universe is calculated, 2) how dark matter can be detected, 3) what the proof is of different sub-atomic particles, 4) the three ways of measuring distance of stars (and galaxies via supernova's), etc. It is stuck in my brain now by this one hour video. Absolutely amazing. Thank you Harry!

    • @Staylecrate
      @Staylecrate หลายเดือนก่อน +1

      yeah! RI rocks.

    • @raylocke282
      @raylocke282 หลายเดือนก่อน +1

      Mr.Spock was from Vulcan.

    • @vihreelinja4743
      @vihreelinja4743 หลายเดือนก่อน +1

      These scientist need to inhale DTM so they will see how everything work.

    • @steveflorida5849
      @steveflorida5849 หลายเดือนก่อน

      ​@@vihreelinja4743the medical scientists are still looking for the source of human Consciousness.

    • @msuquadplayer
      @msuquadplayer 28 วันที่ผ่านมา +1

      I've never seen this person before perform a lecture, but yes, for those who can hold interest to this sort of truly .... esoteric, phenomenon, he makes these complex ideas sound intuitive
      edit: and interesting

  • @PafeueG1
    @PafeueG1 หลายเดือนก่อน +20

    One of the best lectures recently in RI. While it was nothing really new that was discovered, the way our actual knowledge about the universe and QFT was presented by Harry is truly outstanding. This is the way to speak to keep people focused and interested, thank you!

    • @doctorkdsify
      @doctorkdsify หลายเดือนก่อน

      I have 😊a

  • @SeanMontie
    @SeanMontie หลายเดือนก่อน +28

    If you think about it, it's an incredible challenge to condense all of mankinds history of physics down to the present day. There are generations of brilliant scientists and their discoveries only mentioned in one sentence not because it isn't vastly fascinating and important but because he's trying to catch the rest of the salt of the earth (us), up to the incredible achievements and progress that have happened in the last 100 years that have completely changed our fundamental understanding of not only the creation of the universe but everything single thing in it, to then only present that we only really see 5% of what exists, the vast majority of energy is still not understood, and who knows someone or more likely many people will make some equally incredible discoveries that further improve our understanding.
    I've watched many talks over the years on the subjects of physics and cosmology. He does a fantastic job of fitting in as much info as possible in an hour but tempering it just enough so as not to lose the average viewer/listener.
    Well done sir.

    • @Chesterton7
      @Chesterton7 หลายเดือนก่อน +2


    • @whimpypatrol5503
      @whimpypatrol5503 หลายเดือนก่อน

      Given 17 known fields¹, I am wondering how their interactions occur independently of each other and can be calculated if not.

    • @whimpypatrol5503
      @whimpypatrol5503 หลายเดือนก่อน

      Because every new discovery brings multiple new questions, it is easy to argue that the unknown is growing exponentially faster than scientific knowledge. No matter how many breakthroughs, the vastness of the unknown will never get the smallest dent.

  • @pingpong5000
    @pingpong5000 หลายเดือนก่อน +11

    He knows his stuff and makes it very interesting for those of us who wish we were smarter and better informed about science, many thanks Harry.

    • @glacieractivity
      @glacieractivity หลายเดือนก่อน

      Ping - science is not that smart (since we always discuss the things we do not know) making science such a fun job. Science is also a hard job but it is perfectly achievable for living "normies" like myself.

  • @MrNutable
    @MrNutable หลายเดือนก่อน +14

    What an amazing lecture. THANKS!!!
    What a wonderful world where you have access to this, without even looking for it, while you sip your morning coffee and wait for your kids to wake up. Thanks again

    • @GetMoGaming
      @GetMoGaming 13 วันที่ผ่านมา

      I was thinking that recently. Most people now have easy access to this amazing information, for FREE. Yet, people are still misled by politicians and shaky "UFO" clips. My 9-year-old daughter knows more about the universe than the average person in the street. It seems access to a wealth of free, objective information in your pocket is not enough.

  • @Space30MINUTES
    @Space30MINUTES หลายเดือนก่อน +22

    Very impressed with the way Harry Cliff presented space phenomena! If you are passionate about topics like this, don't miss it

    • @JamesPilkenton-se5cx
      @JamesPilkenton-se5cx หลายเดือนก่อน +1

      One in 12 million Mercurial orbits,..
      Is it getting warm in here..?

  • @theextragalactic1
    @theextragalactic1 หลายเดือนก่อน +20

    I love the Friday Evening Discourses! 🤵🏻‍♂️ Especially when they’re about space.

  • @RussellBeattie
    @RussellBeattie หลายเดือนก่อน +20

    Harry Cliff's previous RI talk about field theory and the Standard Model is a must watch. Everything I know about the topic began with that video.

    • @jmp01a24
      @jmp01a24 หลายเดือนก่อน

      Theory is not facts. So this guy goes around spread maybes?

    • @mostevil1082
      @mostevil1082 หลายเดือนก่อน +6

      @@jmp01a24 Scientifically it's our current best understanding of the facts, when the word is used correctly.

    • @jmp01a24
      @jmp01a24 หลายเดือนก่อน

      @@mostevil1082 Facts one day, the next it's considered uncomplete and hardly deserves a mention. Science and Religion.

    • @BenjWarrant
      @BenjWarrant หลายเดือนก่อน +5

      @@jmp01a24 That's not what 'theory' means in science. It's different to the 'theory' that Sherlock Holmes might have as to who is the murderer. That's why *'the theory of evolution by natural selection'* is not a "maybe", it's a set of well-understood principles that affect all biological organisms, and it's the name for that set.

    • @jmp01a24
      @jmp01a24 หลายเดือนก่อน

      @@BenjWarrant What happened to facts? I have a theory that facts trumps maybe's.

  • @johnathanmandrake7240
    @johnathanmandrake7240 หลายเดือนก่อน +59

    Dark matter and dark energy is not something we have discovered, it is something we have not discovered.

    • @johncraig2623
      @johncraig2623 หลายเดือนก่อน +8

      Both of these constructs are admissions we don't have a clear idea of what is going on with behavior we observe in the universe.

    • @johnlonkert7187
      @johnlonkert7187 หลายเดือนก่อน +8

      @@johncraig2623You're both right...and yet both wrong. The first one, the fella who said dark Yada Yada Yada are things we haven't discovered...well. Ok, no, we don't know what either of those things are, exactly. But we still know they ARE there, and we still know what they both do. Insofar as it affects the universe gravitationally, anyway. Sure, they may both do many other things, but they are still discovered. Aaaaand second fella...you are right, inasmuch as we don't have much of an idea about the behavior of the universe...I mean, cmon dude! The universe is gi-freaking-normous!!! It's honestly astounding that we know as much as we do! We actually have a very good idea about the behavior of the universe, as we are allowed to interact with it. So yeah, I agree that you are both right, as far as it goes, but looking at the glass half full and realizing just how much we know about something so mind numbingly huge and impossible to ever get to, we still know a lot, relatively.

    • @Michael-Archonaeus
      @Michael-Archonaeus หลายเดือนก่อน +1

      Dark matter is another term for the ether.

    • @LWJCarroll
      @LWJCarroll หลายเดือนก่อน +5

      Imo. more like place holder names for effects/goings on. scientists have observed…. Laurie. NZ. 😊

    • @Michael-Archonaeus
      @Michael-Archonaeus หลายเดือนก่อน +1

      @@LWJCarroll Aka "ether."

  • @paddy8888
    @paddy8888 หลายเดือนก่อน +31

    When Harry Cliff speaks, I listen with full attention.

    • @SlyNine
      @SlyNine หลายเดือนก่อน +1

      So you might say, you're excited to see him.

    • @mrhassell
      @mrhassell หลายเดือนก่อน +3

      Including that part about 2015 5:12 - Albert Einstein.. wasn't even alive in 2015 haha - don't you just hate saying the wrong century? Only 100 years...

  • @nzer57
    @nzer57 หลายเดือนก่อน +13

    This stuff never gets old.

  • @EleanorPeterson
    @EleanorPeterson หลายเดือนก่อน +15

    Very good lecture. Thank you, dear boy. Your gorgeous velvet jacket puts me in mind of Zapp Brannigan when he says "Velour..."

  • @mayflowerlash11
    @mayflowerlash11 หลายเดือนก่อน +62

    LOL. At 15:17 "In 2015 he was putting the finishing touches ..." Really? More like 1915. I acknowledge this was just a slip of the tongue.

    • @chegeny
      @chegeny หลายเดือนก่อน +9

      "The distinction between the past, present, and future is only a stubbornly persistent illusion." -- Albert Einstein

    • @RFC3514
      @RFC3514 หลายเดือนก่อน +4

      @@chegeny - Yeah, I remember when he said that, in 2057.

    • @mrhassell
      @mrhassell หลายเดือนก่อน +1

      What's 100 years between friends!? I couldn't stop laughing... thinking old first cousin marrying Albutto was younger than me.. cousin diddler

    • @roy2689
      @roy2689 หลายเดือนก่อน +2

      I spotted it straight away too, made almost identical comment before I read yours..

    • @johnm8224
      @johnm8224 หลายเดือนก่อน +7

      Yeah, I noticed that one, too, but it's clearly just an honest mistake. Like your honest mistake that this happened at 15:17 in the video, whereas it's actually at 05:17. Let's give him a pass!

  • @alexwilli
    @alexwilli หลายเดือนก่อน +8

    5:17 - I knew it! Einstein was a time traveler!
    Seriously though, fantastic lecture.

    • @mred660
      @mred660 19 วันที่ผ่านมา

      In 2015, Albert Einstein was hardly at the height of his power. Unless his death was faked. He's with Elvis. lol

  • @boredguy1297
    @boredguy1297 หลายเดือนก่อน +5

    Great talk! Couldn't have been explained better or more concisely! Way to really bring it all together in one cohesive speech. That barely felt like an hour.

  • @johnboyd6943
    @johnboyd6943 หลายเดือนก่อน +3

    Well I got about 1% of that and even that tiny amount hurt my brain!
    I'm in awe of people that do this work, it's truly incredible.

    • @tncorgi92
      @tncorgi92 วันที่ผ่านมา

      And we pay hundreds of millions to sports celebrities while scientists beg and scrape for enough money to do their research.

  • @kateknowles8055
    @kateknowles8055 2 วันที่ผ่านมา

    This reminds me of when my mother showed me the Cavendish Laboratory and told me that was where Rutherford split "the" atom. I was three or four years old. My introduction to atomic physics! I was lucky to be born in Cambridge in the middle of the twentieth century. Lucky to enjoy such a clear and fully packed presentation.Thank you Harry Cliff, thank you Royal Institution.

    • @kateknowles8055
      @kateknowles8055 วันที่ผ่านมา

      Adding today's date: 2024 JULY 12. This is a popular video and there are already 866 comments. So this is probably the 867th comment.
      So when you check back to the early comments you can ignore what comes after July 2024 if you like. Makes it easier to find comments when there will be more.
      I am still learning: Two ways to sort comments: Sort by, sort comments, TOP COMMENTS or NEWEST FIRST.

  • @s.scirocco4411
    @s.scirocco4411 หลายเดือนก่อน +2

    This needed to be about another hour long. It was just getting really good when he ended it! Harry, please give us more!

  • @Strype13
    @Strype13 หลายเดือนก่อน +4

    Phenomenal presentation, Mr. Cliff! (even if the man shamelessly sleeping in the front row [7:54] doesn't agree) Thank you for sharing this with us, I really enjoyed this. I will definitely be picking up a copy of your book, good sir.

  • @florinpandele5205
    @florinpandele5205 หลายเดือนก่อน +7

    We are missing something fundamental about the universe - I would say that's more than obvious and an understatement considering just the theory of quantum physics: we can't really say what a particle really is, we can't say what an observation really is, but we do calculations based on statistics and play around with error margins and the results don't fit, when clearly the secrets of the universe hide in minute discrepancies. Just imagine how many things we miss because the measurements and the theoretical statistics calculations actually matched, even if the theory is probably wrong or off target.

    • @markmaloney8154
      @markmaloney8154 หลายเดือนก่อน +1

      I'm impressed with your insight...

    • @MRm3th3ad
      @MRm3th3ad หลายเดือนก่อน

      The missed is right in front of our eyes and ears. Literally!

  • @nicevideomancanada
    @nicevideomancanada หลายเดือนก่อน +4

    How very interesting this talk was. Thank you Harry.

  • @daviddean8198
    @daviddean8198 หลายเดือนก่อน +2

    Brilliant presentation! Thank you so much, Harry Cliff.

  • @savage22bolt32
    @savage22bolt32 หลายเดือนก่อน +3

    I feel better tonight. The desk is back!
    This is s really good talk, thanks very much.

  • @fins59
    @fins59 6 วันที่ผ่านมา

    What a very good speaker, didn't seem to refer to notes, never lost his train of thought & spoke with knowledge & enthusiasm.

  • @AarreLisakki
    @AarreLisakki หลายเดือนก่อน +5

    I think we need more stories of all the boring anomalies. The diphoton excesses, Z prime boson 'detections', superluminal neutrinos, cosmic inflation 'discovery' by BICEP, DAMA dark matter 'detection', lepton flavor universality 'violation' by LEP etcetc, as I feel the people in the fields are far more skeptical of the anomaly du jour then the general public precisely because they've been around long enough and involved in the details of it to see so many potentially exiting things come and go.

    • @mikesmith2905
      @mikesmith2905 หลายเดือนก่อน +3

      A talk outlining the basics of all these anomalies would be fascinating and entertaining but it might also provoke/inspire someone into thinking of an explanation or two. It is generally held that the day of the 'chap in the shed' is over but the building of Jodrell Bank telescope suggests otherwise (they did have the advantage of all that army surplus electronics that used to be on sale on Shudehill) and more recently the clockwork radio showed the benefits of giving someone a problem from outside their field.

    • @AarreLisakki
      @AarreLisakki หลายเดือนก่อน

      @@mikesmith2905 well, that is also a spin on it, agreed, though I was largely talking about past anomalies that are resolved, and that ended up having one of the boring explanations; statistical fluke, experimental error etc, to teach a bit of skepticism.
      ... though I guess DAMA still insists their measurement is correct ^^

  • @certuv
    @certuv หลายเดือนก่อน +3

    What a presenter, also enjoyed his interview with Lex Fridman at the sane place some two years ago

  • @user-fy8tr3kn5i
    @user-fy8tr3kn5i หลายเดือนก่อน +11

    What so amazing points of view!!!! Thank you!!

    • @mrhassell
      @mrhassell หลายเดือนก่อน

      The ultimate point - in 2015 Einstein was putting the finishing touches.. lol oh wow..

  • @coffeetop1131
    @coffeetop1131 หลายเดือนก่อน

    Well done Mr. Cliff. More importantly, you are the first RI presenter to hawk his wares. Congratulations!

  • @anwaya
    @anwaya หลายเดือนก่อน +3

    At 5m17s: "In 2015, [Einstein] was putting the finishing touches to [the theory of] General Relativity". A theory so revolutionary he travelled back in time and got it published in 1915.

    • @stephenhooper7362
      @stephenhooper7362 หลายเดือนก่อน

      Ha ha! I actually exclaimed, “WHAT?!” When I heard that gaffe.

  • @d1gardner
    @d1gardner 19 วันที่ผ่านมา

    This gentleman is so good, he could make a lecture about paint drying exciting! Excellent presentation, even though I only understood a fraction of what Harry Cliff presented!!!

  • @joshuamccarroll2188
    @joshuamccarroll2188 หลายเดือนก่อน +1

    i came across this on my feed when i was going to bed. That was an hour ago -Nice Video.

  • @gkhaled1
    @gkhaled1 หลายเดือนก่อน +4

    10/10 Lecture! Extra point for the Father Ted joke, it’s so relevant

  • @prometheus_beard
    @prometheus_beard 5 วันที่ผ่านมา

    Thanks Harry!

  • @longbeachboy57
    @longbeachboy57 หลายเดือนก่อน +2

    or as Richard Feynman said: "Sometimes we got silly results when we solved our differential equations. Then we we went back to square one and started over again." Now the result is "negative mass" or "negative energy" explained to keep the model together...

    • @DrDeuteron
      @DrDeuteron 26 วันที่ผ่านมา

      There’s no negative mass. Dark matter has normal mass. Dark energy isn’t negative energy. It is 😅one unit of energy and 3 units of pressure.

    • @longbeachboy57
      @longbeachboy57 25 วันที่ผ่านมา

      @@DrDeuteron You missed my point a little bit, but your feedback is still well taken 🙂

  • @quantx6572
    @quantx6572 หลายเดือนก่อน +6

    i finally understand that muon experiment. much appreciated.

    • @MadScientist267
      @MadScientist267 หลายเดือนก่อน

      But ok electrons have "spin" but don't actually spin, muons are actually rotating wave functions?

    • @quantx6572
      @quantx6572 หลายเดือนก่อน +2

      @@MadScientist267 from what i understand, The muon's wave function incorporates information about its intrinsic angular momentum (spin), but the wave function isn't actually rotating.

  • @masonfarnsworth1801
    @masonfarnsworth1801 หลายเดือนก่อน +2

    i couldn't have said it better myself. beautiful.

  • @amitkasliwal2115
    @amitkasliwal2115 หลายเดือนก่อน +1

    Awesome! Complex topics explained in fluent, elegant and engaging way!

  • @borawserboxer
    @borawserboxer หลายเดือนก่อน +2

    One of my favorite channels, recommend it to everyone. Keep posting more stuff like this plz!

  • @gerardmichaelburnsjr.
    @gerardmichaelburnsjr. หลายเดือนก่อน

    Thank you, Dr Cliff. I can truly say this is the first physics lecture from which I have learned something in a very long time. With only high School physics, I had nonetheless figured out from the quantum jumping phenomenon and from the behavior of photons that there must be something that you described as the quantum field, and I resisted using the term 'ether' for it because I knew it had been rejected. Your demonstration with the hydrogen will help my understanding when I eventually think it through,, if I should live so long.

    @NATESOR หลายเดือนก่อน +1

    So cool that you showed Neptune with the correct color grading!

  • @briangschaefer7048
    @briangschaefer7048 หลายเดือนก่อน

    Brilliant video! Exceptionally well articulated and magnificently presented. Thank you Harry.

  • @mistymick4905
    @mistymick4905 หลายเดือนก่อน

    That was a really interesting lecture. Worth a listen. Thanks to all concerned.❤

  • @joshuaerinoehler2377
    @joshuaerinoehler2377 25 วันที่ผ่านมา

    Can't get a slide to load properly yet these people know everything about everything. Congratulations!

    • @pinballrobbie
      @pinballrobbie 22 วันที่ผ่านมา

      The slide was entangled

  • @rickitynick4463
    @rickitynick4463 หลายเดือนก่อน

    Appreciate the updated picture of Neptune!
    Very much enjoy the presentation, thank you!

  • @En_theo
    @En_theo หลายเดือนก่อน +10

    It would be nice to talk about Eric Laithwaite and his gyroscopes experiments...

    • @mrhassell
      @mrhassell หลายเดือนก่อน

      Laithwaite was a keen entomologist and co-author of "The Dictionary of Butterflies and Moths" (1975). The "Father of Maglev", before the 2022 Nobel Prize in Physics had confirmed Quantum Entanglement, was real even.. A man ahead of his time.

  • @BBQDad463
    @BBQDad463 หลายเดือนก่อน +2

    Thank you for this video. It was truly an outstanding presentation.

  • @spoofer44
    @spoofer44 หลายเดือนก่อน

    Excellent lecture. Love that you explained that atoms aren't actually atoms, but simply vibrations in the medium in which we exist. Personally, I think atoms are knots in the strings that comprise our medium.

  • @hashem26962
    @hashem26962 หลายเดือนก่อน +2

    Great speaker and scientist. I envy your students!

  • @Mauromoustakos
    @Mauromoustakos 7 วันที่ผ่านมา

    A very enlightening lecture,
    A note from us non-english speakers: the pace of one who's mother tongue is English, is more fast than our mind can catch up easily. We somehow can do it, but we have to be very attentive, and we very often have to wind the video back.

  • @user-gz3rk7nk3x
    @user-gz3rk7nk3x วันที่ผ่านมา

    Brilliant Lecture.

  • @rickbrummer3628
    @rickbrummer3628 หลายเดือนก่อน +8

    This is so interesting

  • @davidandrews2883
    @davidandrews2883 หลายเดือนก่อน +12

    Brilliant lecture. Thank you.

  • @neondigital547
    @neondigital547 หลายเดือนก่อน +1

    2015? You made an oopsie lol. Great video, Harry C. is a legend

  • @donporter8432
    @donporter8432 หลายเดือนก่อน +5

    Glued to the demonstration. Bravo!

  • @maddi62
    @maddi62 หลายเดือนก่อน +11

    Brilliant lecture. Thanks

  • @revmsj
    @revmsj หลายเดือนก่อน +1

    The greatest anomaly hinted at but not mentioned specifically as an anomaly in this video is that Einstein worked well into his 130’s and well past his death…😲

  • @KyleDownsFTW
    @KyleDownsFTW หลายเดือนก่อน

    That was a great listen. Thank you.

  • @Monsux
    @Monsux หลายเดือนก่อน +1

    Missed opportunity to say during the balloon demonstration. "Filling the balloon with time." The air in that demonstration is basically time.

  • @jimmcdowell4480
    @jimmcdowell4480 หลายเดือนก่อน

    very well explained and illustrated ,there are so many new discoveries ahead of us

  • @frogandspanner
    @frogandspanner หลายเดือนก่อน +2

    1:29 Note to 'Merkins: _transit_ means _passing across_ , not _public transport_ .

  • @AnujFalcon
    @AnujFalcon หลายเดือนก่อน

    Crucial lecture to get an insight into the current situation with the SotA Physics models.

  • @iindium49
    @iindium49 หลายเดือนก่อน +1

    I have always viewed the quantum field as higher dimensional bleedthrough. The finger touching the paper universe etc.

  • @TroyCenter
    @TroyCenter หลายเดือนก่อน +1

    Wow this was a fantastic talk. I know most and I was inspired to listen newly. ;). Great presenter.

  • @BigKandRtv
    @BigKandRtv 14 วันที่ผ่านมา

    Wow! Great job making this understandable!

  • @null4624
    @null4624 หลายเดือนก่อน

    wish I had chance to attend any University with such subjects. Thankful that this is free to watch

  • @buckanderson3520
    @buckanderson3520 หลายเดือนก่อน +2

    I think black holes drive the expansion of the universe so the Hubble constant could vary with the size of the black holes at the center of galaxies. It might be that black holes have no interior in the traditional sense because when a massive object collapses into a black hole it loses any space contained within it to it's exterior. The volume contained within something can only be calculated when the surface area is known. So what is the boundary of the universe but the space time boundary of a black hole. The space between black holes is expanding with the exception of those close enough to each other to be gravitationally bound. The further away the less gravity counters the force of expansion so the faster they receed. That's my theory anyway.

  • @tatotato85
    @tatotato85 หลายเดือนก่อน +3

    Great watch good stuff

  • @DeneF
    @DeneF หลายเดือนก่อน

    I really enjoyed that. Many thanks.

  • @pomodorino1766
    @pomodorino1766 หลายเดือนก่อน +7

    This was really well presented! Thanks so much!

  • @garydecad6233
    @garydecad6233 หลายเดือนก่อน

    Excellent presentation. Thanks!

  • @0The0Web0
    @0The0Web0 หลายเดือนก่อน +1

    Great lecture, the examples were well presented 👍

  • @davidfisher9251
    @davidfisher9251 หลายเดือนก่อน

    Whatever else you can say about this guy is: he spoke about this extemporaneously with no notes for several hours.
    Geesh !!! Or, holy cow. Not only that, but I had glimmers of understanding him.

  • @ulrikof.2486
    @ulrikof.2486 วันที่ผ่านมา

    Neptune wasn't discovered as the eighth planet. At the time of its discovery, it was the 13th planet, as there were five planets of the asteroid zone, who are nowadays no more categorized as regular planets, but as dwarf planets.

  • @plinble
    @plinble หลายเดือนก่อน +1

    My theory is that relativity, or the accepted solutions, have been massaged to make them compatible with Newton. My maths isn't good enough to solve the equations properly, but as mentioned there are 4 key basic pieces of evidence missing to support Newton at the human scale. 1-timed drops under gravity measured with precision. 2-gyros in a closed box with F=ma. 3- missing the experiment of firing something up at known speed, see how it gets and measure speed on the way down. 4- missing linear air cart (track) videos for collision checks - difference between kinetic energy and momentum, and elastic and inelastic collisions

  • @joseywales6168
    @joseywales6168 หลายเดือนก่อน

    Wonderful overview of cosmology! With a bit of new info for me. Wish i could be working at a place that studies the universe

  • @adriendecroy7254
    @adriendecroy7254 หลายเดือนก่อน

    Awesome lecture. Fascinating stuff.

  • @RFC3514
    @RFC3514 หลายเดือนก่อน +14

    It's a bit weird to see someone say quantum field theory is "the language with which we describe all particle physics" and, 20 seconds later, talk about something "producing a magnetic field". There is no such thing as "a" magnetic field, and nothing "produces" it. There is *the* magnetic field (which is always there - there being everywhere - it's an intrinsic property of the universe), and those phenomena simply _alter its value_ (locally). Describing those perturbations as the "creation" of a magnetic field is a bit like saying that throwing a stone into a still part of a large pool "creates" water.
    A lot of the difficulty people have with quantum field theory (which is actually quite intuitive) comes from the inadequate language used to describe it. Same goes for relativity. To quote Benjamin Lee Whorf, "language shapes the way we think, and determines what we can think about". We can't expect people to feel comfortable with relativity or quantum field theory if we keep describing them in terms of 300-year-old classical mechanics.

    • @DC_DC_DC_DC
      @DC_DC_DC_DC หลายเดือนก่อน +1

      Good reply. Can you recommend any videos explaining it in a fitting intuitive way?

    • @GoatOfTheWoods
      @GoatOfTheWoods หลายเดือนก่อน +1

      @@DC_DC_DC_DC Chat GPT. You can ask it to decribe it however you want.

    • @dannyfar7989
      @dannyfar7989 หลายเดือนก่อน +2

      And it will, doesn't mean it will do so correctly though.
      Don't get me wrong, i appreciate what it can but it's no good for anything you won't gk and verify later, it's not reliable enough to learn something from it, it makes too many mistakes.

    • @GoatOfTheWoods
      @GoatOfTheWoods หลายเดือนก่อน

      @@dannyfar7989 just try it before writing here, and see.

    • @dannyfar7989
      @dannyfar7989 หลายเดือนก่อน

      @@GoatOfTheWoods try what, Chat GPT? Did that, even got telling me it can't lie and the dmitting that it can lie and just did. It basically majorities to figure out what's true. We all know rhat the majority is often wrong. Even Chat GPT acknowledges that when write to it " rhis n such is not correcr please verify" it does so and apologizes.
      Don't get me wrong, I use it for lots of things, I still think it's a usefull tool but a tool that constantly makes Mistakes isn't to be trusted anymore than a human who does. It "knows" lots of things but it's not reliably correct.

  • @sidvicioux
    @sidvicioux 8 ชั่วโมงที่ผ่านมา

    Who is this fellow?
    Incredible presentation!! Superb skills!!

  • @jeffreymartin8448
    @jeffreymartin8448 หลายเดือนก่อน

    Superb. That was really fun !

  • @robertschlesinger1342
    @robertschlesinger1342 หลายเดือนก่อน

    Excellent video. Very interesting, informative and worthwhile video.

  • @nickinurse6433
    @nickinurse6433 หลายเดือนก่อน

    I usually always have to increase the speed on every video except when it is a scientist speaking. Even the scientists on children's shows such as scishow or eons speak at the speed of us New Yorkers. I had to check if he was on normal speed or quick. I guess it's because the scientists are so smart and they think quickly.

  • @weddiedon
    @weddiedon 23 วันที่ผ่านมา

    Measuring the magnatism of something that only lasts 1millionth of a second is mind boggling

  • @marktime9235
    @marktime9235 หลายเดือนก่อน +1

    How's about a lecture on that minor anomaly that is "what is our universe expanding into?" ....

  • @earlworley-bd6zy
    @earlworley-bd6zy หลายเดือนก่อน

    & well done Mr.Harry Cliff.

  • @martyh5980
    @martyh5980 20 วันที่ผ่านมา

    When Harry said murons are moving through us I immediately thought he was saying that that is gravity. And later thought that it can be compared to capillary action when water moves from a tree's roots up through the trunk and branches but opposite direction. Energy moves thru us holding us to earth. Did everybody already know this LOL.

  • @D0S81
    @D0S81 27 วันที่ผ่านมา +1

    5:16 i love that Albert Einstein got to see the advent of smartphones.....in 2015

  • @peterwassmuth4014
    @peterwassmuth4014 26 วันที่ผ่านมา

    Awesome Thank you for Sharing💫

  • @DouwedeJong
    @DouwedeJong 27 วันที่ผ่านมา

    Thanks for making this video.

  • @BIGGGY305
    @BIGGGY305 หลายเดือนก่อน +1

    great talk!

  • @juancarlossanchezveana1812
    @juancarlossanchezveana1812 หลายเดือนก่อน +4


  • @fcbrants
    @fcbrants 27 วันที่ผ่านมา

    Click - Add to Cart :) Can't wait to read the book, thank you!!

  • @ACGreviews
    @ACGreviews หลายเดือนก่อน

    My god this was a good lecture

  • @Mkbshg8
    @Mkbshg8 หลายเดือนก่อน +2


  • @WILLIAMMALO-kv5gz
    @WILLIAMMALO-kv5gz หลายเดือนก่อน

    Thanks for a very helpful video and all the technical detail. I was just wondering today in a nap, how far is Andromeda from here. The answer was 1bl light years. Now I know its only one million light years. My other consciousness sometimes gets its guestimates wrong.

  • @clhoover4
    @clhoover4 หลายเดือนก่อน

    Great talk!!

  • @dazzlerweb
    @dazzlerweb หลายเดือนก่อน +3

    Vulcan, my home planet exits, live long and prosper.

  • @suffering4art
    @suffering4art หลายเดือนก่อน

    A really interesting lecture, that only serves to confirm to me that the only answer to the expanding universe is the 'boring' solution: 'tired light'! If the universe is stationary, infinite and populated with galaxies, and photons lose energy (through quantum effects of dark matter etc) on their way towards us, that explains the observed increasing redshift. The Hubble constant anomaly and the varying microwave background radiation is then simply due to the radiation reaching us from slightly non-homogeneous areas of the more distant invisible universe. Obviously James Webb seeing mature distant galaxies also ties in with this, as does Einstein not needing a fiddle factor to stop the universe collapsing, as well as the current work at Lancaster University that is mapping impossibly large structures in the visible universe that are incompatible with its believed age. Obviously all our current redshift measurements within the universe are still valid regardless of its cause. So I'd love someone to be able to persuade me that the simple 'boring' explanation of light losing energy as it travels towards us is wrong. As the more I read the more I can't believe that the current theories can be the true answer!

  • @RWBHere
    @RWBHere หลายเดือนก่อน

    Thank-you, RI. A strong proposal for you all:
    We need some bigger units of measurement. A Light Year itself is about 6 trillion kilometres, which is huge on our scale, but it makes sense because of using a fundamentally simple concept; the distance that light would travel in 1 year. But on a cosmological scale we have to use what are, to most people, nearly meaningless multipliers. So my proposal is that we can step beyond talking about bigger distances in Light Years or parsecs.
    The following suggestion should be very helpful:
    Let's say that the Andromeda galaxy is, on average, 2 million Light Years away from the Earth. (If it's more like 2,5, then we can still use my suggestion, with a modification. But let's keep things in multiples of 5 and 10.) Now we can call that distance 1 Andromeda. (1Æ).
    On that scale, instead of talking about something which is 10 billion LY away, which is really an incomprehensible number to most people, we can talk about something which is 5,000 Æ (5x10⁶Æ) away from us.
    It's still a big number, but it is rather more comprehensible to everyone, including cosmologists.
    To improve on that further, if it becomes necessary, maybe someone can propose a good name for the size which equates to 1,000 Æ away? (I'll call it KÆ for now.)
    Then the ten billion Light Year distance becomes 5,000 Æ, which is 5 KÆ away from us. Now we're dealing with huge numbers which are broken down into mentally manageable units: The edge of the observable Universe is about 6,900 Æ, or 6.9 KÆ, away from us. We can round that figure to 7 KÆ, if needed. People can count to that number on their hands.
    Thanks for considering this suggestion.