Gravitational wave astronomy -- opening a new window on the Universe | Martin Hendry | TEDxGlasgow

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  • Опубликовано: 20 ноя 2024

Комментарии • 141

  • @rahafs2825
    @rahafs2825 8 лет назад +104

    Well, today is February the 11th, 2016. And they just announced that Gravitational Waves got detected !

    • @emadmahdy6271
      @emadmahdy6271 8 лет назад +1

      +Rahaf S good ..science progress is very very speed than i thought !

    • @teamcori
      @teamcori 8 лет назад +3

      +emad mahdy Progressing fast than the speed of light! MIND BLOWN!!!

    • @tracyzill
      @tracyzill 8 лет назад +1

      +Rahaf S Here's a good source: Nikola Tesla debunks Albert Einstein's "Spooky" "Action at a Distance", "Faster than Light", "Photoelectric Effect", "Splitting an Atom", "Ether", "Curved Space", Space-Time Fabrication, Nuclear Power Safe, Bomb Hoax nikolateslasolar blogspot com/2015/10/nikola-tesla-debunks-albert-einsteins html

    • @ROBMCKISSOCK
      @ROBMCKISSOCK 8 лет назад

      +Rahaf S yeah so they tell us, but how do they know it's a gravity wave when they don't know what gravity is ?

    • @AmonAmarthFan609
      @AmonAmarthFan609 6 лет назад +2

      They were detected in September 2015

  • @liukang8535
    @liukang8535 8 лет назад +4

    "Truth shall set us free". A truely remarkable discovery. we have come a long way from being protobiological blob in primordial soup. we are on cusp of unlocking the secrets that cosmos hold. I thank all the people involved with Ligo on behalf of mankind.

  • @JamezGamez97
    @JamezGamez97 8 лет назад +7

    That's my cosmology lecturer!

  • @charlesbromberick4247
    @charlesbromberick4247 3 года назад

    The mirrors seem incredible to me - their smoothess, their suspension, the multiple reflections, etc. Nice lecture.

  • @ryanmeok9800
    @ryanmeok9800 8 лет назад +4

    Now, sir gravitational waves discovered, wow ... Congratulationl LIGO !

  • @bindhulakshminarayanan8411
    @bindhulakshminarayanan8411 8 лет назад +1

    Thank you sir for such a lucid and simple explanation

  • @ThePurestOnes
    @ThePurestOnes 8 лет назад

    I myself made a video explaining the gravitational wave phenomenon in celebration of this enormous leap in our understanding of the universe :D so hyped about this

  • @L2Xenta
    @L2Xenta 8 лет назад +3

    So this was before... awesome.

  • @nichanson
    @nichanson 8 лет назад

    Much earlier than expected! Jan 1st 2017 was his predicted time to detect gravitational waves. Hope these next detectors come online soon.

  • @bibekshah8171
    @bibekshah8171 2 года назад

    Great explanation. You might be so happy when you get to know that LIGO has detected gravitational waves.

  • @ujayet
    @ujayet 8 лет назад +1

    Now we can finally work on space ship with warp drive capabilities.
    Thanks Einstein for gravitational wave and Alcubierre for warp speed!!

  • @peterbarraud5254
    @peterbarraud5254 8 лет назад

    Sorry for being painful but it wasn't Einstein who said that space and time were actually not separate things (5:50). It was actually his maths teacher, Hermann Minkowski

  • @michaelccopelandsr7120
    @michaelccopelandsr7120 Год назад

    I've been posting this story for a while, now. Is it possible they're related?
    Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an entire city, with no interaction with each other until they used the subway, complain about the same time paradox unless it was effected by it? Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? Ti-i-i-ime, is on my side. Yes, it is!

  • @nikolatesla9384
    @nikolatesla9384 8 лет назад +6

    they did make that find way before they expected. I wonder if this will be the nobel prize candidate this year

    • @emadmahdy6271
      @emadmahdy6271 8 лет назад

      +Nikola Tesla yes ..I think it must be

    • @samuelwalworth12
      @samuelwalworth12 8 лет назад

      +Nikola Tesla Nobel Prize for any Science related project generally takes 5 - 10 years. They take that much time to make sure that theory and proof are rock solid,

    • @kk141281
      @kk141281 8 лет назад

      +Nikola Tesla Sure thing.. Thats axiomatic to say

    • @cawfeedawg
      @cawfeedawg 8 лет назад

      +Samuel Walworth welp the higgs boson NBP was awarded the same year of its discovery.. no?

    • @alcyonae
      @alcyonae 8 лет назад

      +Nikola Tesla Oh yes they actually detected the signal in the engineering phase, when the labs weren't officially running. They had already fine tuned the instruments though, so it's a safe signal (not to mention they already detected 2 more, but those aren't fully analyzed yet)

  • @birhan2006
    @birhan2006 8 лет назад

    Very good predictor this guy is

  • @JosephLibby
    @JosephLibby 8 лет назад

    Not a bad prediction. Only about a year off! Good work!!

  • @samarjitchavan1293
    @samarjitchavan1293 8 лет назад +2

    YES! THE WAVES HAVE BEEN DETECTED!

  • @EclipZeMuzik
    @EclipZeMuzik 6 лет назад

    never give up making videos!

  • @YNORAN
    @YNORAN 8 лет назад +1

    It is found , it is DONE !
    Congratulation :)

  • @Astronaut_2001
    @Astronaut_2001 8 лет назад

    Amazing!

  • @jvsper_
    @jvsper_ 8 лет назад +5

    Well all of this is now proven, it's amazing

  • @onesunghero
    @onesunghero 9 лет назад

    I never knew Scottie had a tedtalk

  • @kurtpiket6739
    @kurtpiket6739 6 лет назад

    I still think that the gravitational impact base on attraction. Just attraction by mass. F.E. The blossom on the branch of a tree.
    The blossom grows a little apple, with mass. The branch starts to bend. The mass of the apple grows, by attracting the food out of the tree by the umbilical cord between the apple and the branch. The branch bends more. The apple grows ripe, where at some time the umbilical cord becomes separated from the branch. The apple becomes attracted to the earth, grwoing a new tree.
    Spacetime of the bending branch is the result of attraction. The apple can move by the wind, which also moves by attraction!
    Gravitational waves. I do not see waves. I see there rising points up and down inside matter on the event horizon, which show themselves as waves because we want to see them as waves. That is observing science. By perceiving science, the points come up and down by bending space, as with the apple on the tree above.

  • @michaelvoigtlander9721
    @michaelvoigtlander9721 4 года назад

    If you want to know more about gravitational waves, read the Contact Notes of Billy Meier.

  • @1238655
    @1238655 8 лет назад

    today is a good day

  • @carolchen2320
    @carolchen2320 8 лет назад +1

    Today it is confirmed! Gravitational waves are officially detected! ( not even a physicist but what a big day for physic field!)

  • @jjstone78
    @jjstone78 8 лет назад

    Mandal Asked yesterday if the Gravitational Waves could be cut. However silly that sounds I think it has been "cut" already. If you look at this video, it eerily looks very similar to how gravitational waves are represented. What do you guys think? Look up Spiral Portal in sky.

  • @KafshakTashtak
    @KafshakTashtak 9 лет назад +5

    I have a question: If those gravitational waves are going to expand/shrink each one of those LIGA arms, doesn't that expand/shrink the wavelength of the light passing through those arms as well? I mean the number of peaks/valeys on the light that's going to travel through the arm would stay the same (distance and wavelength, both expanded/shrunk) and the final interfering beams are going to be in phase. Can someone describe this to me?

    • @javadfardaei7333
      @javadfardaei7333 8 лет назад

      +SAHM check Javad Fardaei Gravitational waves, is the best

    • @eze1022
      @eze1022 8 лет назад

      +SAHM "gravity waves" detected by this advance ligo lazer capacitance chamber are actually an effect known as electromagnectic phase rarefraction. nothing to do with space-time relativity. if you read the thesis on the ligo website there is alot of inconsistencies such as measurements found during engineer pahse and not testing phase i.e human interference. the binary blackholes collided 1.3 billion years ago and measured now. the results of measuring a small change in phase doesnt not constitue a "gravitational wave" its rarefraction

    • @KafshakTashtak
      @KafshakTashtak 8 лет назад

      hier222
      Sorry, I couldn't understand your comment.

    • @eze1022
      @eze1022 8 лет назад

      its electromagnectic phase rarefraction not d-waves once you research that you'll understand the wave phase mechanics

    • @retyroni
      @retyroni 8 лет назад +1

      +SAHM I had the same question. It led me to this: scitation.aip.org/content/aapt/journal/ajp/65/6/10.1119/1.18578;jsessionid=2wvhipcejl86q.x-aip-live-06
      This is quite over my head and will take me a while to absorb, but maybe it's what you're looking for.

  • @theodorewarthen6061
    @theodorewarthen6061 8 лет назад

    nice beat his prediction

  • @semitary
    @semitary 8 лет назад

    Well if it bends and warps, it is physical of some sort. Gravity is a result of spacial density increasing. Just takes a black hole (sphere) to increase or distort it enough to see it.

  • @TheTrumanZoo
    @TheTrumanZoo 8 лет назад

    weightless floating magnetism flux lines forming a electromagnetic lock. making the invisible cause seemingly instant over distance. a constant connection is not really spooky.

  • @saketg5954
    @saketg5954 8 лет назад +11

    This is British Matt Damon.

    • @MassDynamic
      @MassDynamic 8 лет назад

      +SaketG i think more on the side of Irish or Scottish

    • @brenbutts
      @brenbutts 8 лет назад +2

      Scottish

    • @pricardo333
      @pricardo333 8 лет назад +1

      Erm... Scottish people are British

    • @MassDynamic
      @MassDynamic 8 лет назад +1

      ask a Scottish person and they may say otherwise.

    • @alexdrudigmail
      @alexdrudigmail 8 лет назад

      +MassDynamic No, not after the referendum

  • @ShovonM
    @ShovonM 8 лет назад

    Science is amazing... :)

  • @akhilvarma198
    @akhilvarma198 8 лет назад +5

    Today, 11th February 2016 - Human species detect gravitational waves for the first time..

    • @akhilvarma198
      @akhilvarma198 8 лет назад +2

      Well, it's detection on Sept. 14 2015 officially announced on 11th Feb, 2016

  • @barrywhite9114
    @barrywhite9114 3 года назад

    Humans never set foot on the Moon. Rethink that 240,000 miles away. Amazing how everything works together. Bart Sibrel.

  • @joshuadougall2544
    @joshuadougall2544 8 лет назад

    question: how does the gravitational waves deteriorate through space-time? is there a resistance present?

    • @depressedrobot2491
      @depressedrobot2491 8 лет назад

      +Josh Dougall No there isnt, it is just because the effects act over a bigger area. Let me explain it with light waves:
      Lets say you have a 100W puntual light source, and that its energy distributes equally in all directions. Now: One meter away, the light distributes over 4Pi square meters (because the area of a shell with radius r is 4 r^2 pi), so the light intensity PER SQUARE METER would be "100W/4pi" at 1 meter of distance to the source.
      What happens now if find yourself at 10 meters of distance from the light source (lets call it bulp)? Then the power output of the bulp is still 100 W, but it distributes over a much bigger area. Now, the intensity per square meter would be "100w/(4Pi*100^2)."
      So, as you've seen: The intensity per square meter is much less at 10m of distance to the bulp than at 1 meter of distance to the bulp, without any kind of resistance involved. Its just pure conservation of energy. The same thing goes for gravitational waves.

    • @MrAlRats
      @MrAlRats 8 лет назад

      +Josh Dougall The amplitude decreases in inverse proportion to the distance from the source as the wave spreads out over a greater and greater volume of space. So if you move twice as far the amplitude is halved.

    • @joshuadougall2544
      @joshuadougall2544 8 лет назад

      +Depressed Robot oh I see, that makes sense, thanks for sharing

    • @johnkerley4152
      @johnkerley4152 8 лет назад

      Thanks, that is a good explanation. I have recently been trying to figure out how to do exactly what you explained, but I did not know this shell type math,...in a way I did, but I couldn't figure out how to do it at the first meter.

    • @johnkerley4152
      @johnkerley4152 8 лет назад

      I am believing that you meant to say at 10 m that the intensity per square meter was equal to 100 W/(4Pi*100),....instead of 100 W/(4Pi*100^2). Because 10^2 = 100.

  • @patrikkivekas5261
    @patrikkivekas5261 8 лет назад +3

    Am I the only one who really likes his accent?

  • @erkansar
    @erkansar 8 лет назад +1

    I love he Scottish accent :)

  • @nickboronda7696
    @nickboronda7696 7 лет назад

    its fields, toroidal fields, and inertia

  • @aleksandar5323
    @aleksandar5323 9 лет назад

    What if gravity was a positive force echoing through the universe , and then the eclipse of this force by a large and solid object causes the observer to be pushed towards that object? And then clocks run faster at higher altitudes , because they are recieving more of this force , the excess of wich is energy , wich in turn deforms matter in a way that convinces our measurement tools that spacetime itself is curved.

  • @SPACETIMECREATOR
    @SPACETIMECREATOR 5 лет назад

    Gravitation is all line frequencies and line divisions it holds all dimensional planets through its magnetic energy meteorically electric electronic systems

  • @realyman
    @realyman 8 лет назад

    Gravity = Time. Time = Gravity

  • @eze1022
    @eze1022 8 лет назад

    "gravity waves" detected by this advance ligo lazer capacitance chamber are actually an effect known as electromagnectic phase rarefraction. nothing to do with space-time relativity. if you read the thesis on the ligo website there is alot of inconsistencies such as measurements found during engineer pahse and not testing phase i.e human interference. the binary blackholes collided 1.3 billion years ago and measured now. the results of measuring a small change in phase doesnt not constitue a "gravitational wave" its rarefraction

  • @torisaksson3720
    @torisaksson3720 8 лет назад

    How big was the difference in length between the mirrors?

    • @nicholashylton6857
      @nicholashylton6857 8 лет назад +2

      Fractions of an atomic nucleus. A mind-boggling level of accuracy.

    • @Obama4Prezz
      @Obama4Prezz 8 лет назад +2

      +Nicholas Hylton precision :)

    • @torisaksson3720
      @torisaksson3720 8 лет назад

      +Nicholas Hylton Hmm Okey ... So the mirrors surface most be flatter then a fraction of an atomic nucleus for the test to have any meaning?

  • @christinestill1990
    @christinestill1990 8 лет назад

    Thank You. Was wondering about dates & how long it actually took them to detect and confirm their first gravitational wave. Not long at all. So happy for this as funding at least in USA almost demands immediate results.

  • @EnginAtik
    @EnginAtik 8 лет назад

    Can anything be observed without energy exchange between the observer and the observed?

    • @MKTElM
      @MKTElM 5 лет назад

      Gu Kwest shun !!

  • @jm4giv
    @jm4giv 8 лет назад +2

    can the fabric be cut? and what's under the trampoline if we "drill" it?

    • @mikestoneadfjgs
      @mikestoneadfjgs 8 лет назад +1

      +Jyotirmoy Mandal Its like a 3 dimensional trampoline so it cant be easily cut... But black holes are the closest thing to cutting the fabric and nobody knows what is in the center of those so maybe spacetime can rip :O

    • @jm4giv
      @jm4giv 8 лет назад +1

      its so unsettling :)

  • @Paradox2614
    @Paradox2614 8 лет назад

    Found it

  • @jawbreaker1975
    @jawbreaker1975 8 лет назад +1

    How wide is a gravitational wave? Wouldn't a gravitational wave affect everything at the same time? Relativity would make a gravitational wave undetectable because everything would move at the same rate and there would be no relative motion. The mirrors would stay aligned even though they both moved. Js, .

    • @NoahSpurrier
      @NoahSpurrier 8 лет назад +1

      No, the mirrors are art right angles, an L shape. A passing wave would distort one arm of the Lmore than the other. The difference between the two arms of the Lnis what they are detecting.

    • @jawbreaker1975
      @jawbreaker1975 8 лет назад +1

      +Noah Spurrier So they know the geometry of gravitational waves? They can detect an ant sneezing if they use indirect methods to do so. They had to produce results and did.

    • @torisaksson3720
      @torisaksson3720 8 лет назад

      +Noah Spurrier what was the difference in length?

    • @rockoholik
      @rockoholik 8 лет назад

      +tor isaksson 4 kilometers

    • @FourTwentyMagic
      @FourTwentyMagic 8 лет назад

      +tor isaksson difference in length was about 1/1000 of a proton! They do the experiment at two different locations, in order to make sure no other factors are affecting the difference in length. They figure out the difference in length by an interference pattern in the light, because the waves do not align if the distance is changed. It actually a very clever, but complicated to fully understand experiment.

  • @paulhaskel599
    @paulhaskel599 7 лет назад

    Why is the "w" so far from the other letters?

  • @johnthompson6550
    @johnthompson6550 6 лет назад

    like Glasgow, hand me a pint

  • @Pariharyash
    @Pariharyash 8 лет назад

    and yes gravitation waves detected..

  • @geoffgyte7670
    @geoffgyte7670 4 года назад

    78professor david bacon

  • @georgeslabranche340
    @georgeslabranche340 8 лет назад

    can we travel on this wave?

    • @Nukkro
      @Nukkro 8 лет назад

      Even if we could they are slow (speed of sound) so it's void

    • @marcnairn8355
      @marcnairn8355 2 года назад

      @@Nukkro they travel at the speed of light, we would otherwise never be able to observe them in the first place

  • @flodareltih9407
    @flodareltih9407 8 лет назад +1

    no such thing as gravitational waves, good observation pittiful explanation.

    • @FourTwentyMagic
      @FourTwentyMagic 8 лет назад +2

      +Floda Reltih You what? Do you live in a cave, or do you just choose to ignore the knowledge put forth to you?

    • @flodareltih9407
      @flodareltih9407 8 лет назад

      no such thing as gravitational waves, good observation pittiful explanation.
      /watch?v=J3Hoax81rkI

  • @cymoonrbacpro9426
    @cymoonrbacpro9426 5 лет назад

    In reference to this signal( gravitational wave) here is something to consider LIGO False positive, problem is that the methods used to interpret the noise (which has a smaller amplitude than the atomic nuclei) use predetermined template comparisons that introduce a bias in these observations. The signature of chirps that begins with a low and moves to a higher frequency may be due to many other natural phenomena. There is also a problem and that is, to associate the Signal (chirps) with cosmic events; There are three natural relationships: similarity, contiguity and cause and effect. Of these, the causes and effects it is the most problematic where the narrative does not have a connecting principle, but instead it is artificially juxtaposed by the mind and not real. In other words, how many of these events could be associated artificially and are not real. How many of these events occur in the Universe and are accidentally and wrongly associated. This is a problem that has not been answered beyond a shadow of a doubt.

  • @guniaism
    @guniaism 8 лет назад

    world scirntific community is celebrating detection of g waves. congratulations.

  • @paulmcd7473
    @paulmcd7473 9 лет назад +2

    Kinda wish he'd skipped the history of gravity part.

  • @barbarianslab
    @barbarianslab 8 лет назад

    Is that a real nose?

  • @nickboronda7696
    @nickboronda7696 7 лет назад

    no such thing as gravity

  • @Toddg1234Mr
    @Toddg1234Mr 8 лет назад

    Why can't you detect the ambient gravity field. Its everywhere - I have detected it, and is quite simple.

    • @jobj9176
      @jobj9176 7 лет назад

      Todd Grigsby how have you detected it?

  • @goodyearweltedguya5850
    @goodyearweltedguya5850 8 лет назад

    please translate your content to Arabic

  • @VanVu-uu3jl
    @VanVu-uu3jl 8 лет назад

    Everything is a wave these days. Next thing you know, love is actually a wave sync

  • @gerigotnogame2422
    @gerigotnogame2422 8 лет назад +2

    Bullshit.

  • @bipedalame
    @bipedalame 8 лет назад

    One ten millionth of an atom? Scientists detecting answers to their wrong equations. Never heard a boffin explain a Singularity?

  • @jamescowley5001
    @jamescowley5001 10 лет назад

    Nice presentation by Martin Hendry. However, Gravitational Waves are hypothetical and there is no direct evidence, yet, to validate their existence. You could point to the indirect evidence by Hulse and Taylor but that is not definitive proof! It's interesting to note that Nathan Rosen spent a considerable period of his academic career attempting to disprove Gravitational Waves. Einstein in the latter half of his career did a double reversal on Gravitational Waves. If they are out there then they are very difficult to detect and most probably will not be easy to utilise as a new generation of telescopes. Gravitational Wave research smacks a bit of BSM and Supersymmetry. It promises the "holy grail of answers" but it just might not deliver the final product!

    • @corysmith7597
      @corysmith7597 9 лет назад +1

      measurements of the Hulse-Taylor binary system that suggests gravitational waves are more than mathematical anomalies. Various gravitational wave detectors exist and on 17 March 2014, astronomers at the Harvard-Smithsonian Center for Astrophysics claimed that they had detected and produced "the first direct image of gravitational waves across the primordial sky" within the cosmic microwave background, providing strong evidence for inflation and the Big Bang.[6][7][8][9][5] Peer review will be needed before there can be any scientific consensus about these new findings.[10][11] On 19 June 2014, lowered confidence in confirming the cosmic inflation findings was good

    • @pat325ci
      @pat325ci 8 лет назад

      +James Cowley I assume you've heard about the announcement on Feb 11th?

    • @pat325ci
      @pat325ci 8 лет назад

      +Star Trek Theory gravitational waves

    • @astrogecko1650
      @astrogecko1650 8 лет назад

      We've found direct evidence now!

    • @astrogecko1650
      @astrogecko1650 8 лет назад

      Star Trek Theory that sucks.It's probably on YT or something if you want to watch.

  • @giakon1
    @giakon1 5 лет назад +1

    Gravitational waves BS