LIGO Detects Gravitational Waves 

+zaid wadi Is your icon Yui?

+zack hjorth yes it is

Yui is life

+zaid wadi if it stands up to scrutiny. 1/1000th the size of a proton... We can't even standardize the measure of Levi's. What makes anyone think this is more than careful manipulation of the algorithm? We can't even locate protons accurately. And look at all the effort people are putting into making these videos inspire an emotional impact? If it was a major breakthrough, where's the boring press conference about it? Instead we get these campy inspirational videos. More proof, more data, less emotional fuckery, then let's calls this a discovery.

you was always going to be alive

and while we cannot detect gravitons, this is gives us proof that they actually do exist.

Thank you I've been trying to find out the big deal is. for 30 min. This is great

3 Years later and you just gave me the exact 5 points I needed for my A-Level Physics so thanks!

Is Gravitational Wave affect Quantum Mechanic too?

It would seem quite a few smart people think these measurements are questionable...I'm not convinced what is being detected is "gravity waves". Honest 3rd party scientists are necessary with claims like this, and should not be ignored but confronted with humility.

He didn't observe nature or thought about it. It is the equations and mathematics that revealed their existence.

@@HimanshuRohela then how did he come up with those equations?

You are so fat that when you walk ligo detects gravitational waves

@@marcusgarvey7588 Go back to RU-vid Kids

Einstein was smart, but ultimately will be proven wrong. Unfortunately LIGO's "gravitational wave" detection is very much debatable, surprised this fact has not been highlighted as much as I (and many other people much smarter then me) think it really should. Sorry, didn't mean to come in and be a "party pooper". Science dont care how we dislike the process of progress though~

well 2023 it seems they are getting closer

@@nuna9717 mhm nerds for the win!

it will never surpase cat videos

+Physics Videos by Eugene Khutoryansky Can a Nobel prize be given posthumously ? If so, Bertie One Stone should get it....again.

+onionman4 they cannot

They made the discovery 4 months ago

+steveis1234 yeah, but MIT only posted this video a few minutes after the announcement was made.

Emil Haugen Beats me I guess

Bernie Schutz was also part of the team with this great achievement

You have no podcast.

Brandon Wiebe The LIGO is nothing more then a sophisticated HOLOMETER device. Holometer is a instrument designed to study the quantum character of space itself. It measures the quantum coherence of location with unprecedented precision. And the gravity wave is nothing more then quantum fluctuations and NOT gravitational waves!

@@cymoonrbacpro9426 hopefully we can use LIGO to track down the gravitational waves of who tf asked

@@cymoonrbacpro9426 who tf asked

Most of the time they spent verifying the results to ensure they didn't make a mistake and peer review by other competent scientists world over.

The Experimental Scientific Process in the professional world could even take years. LIGO has the advantage that measurements are easier and faster to see. Expect to see this discovery to get nominated for the Nobel Prize in Physics

+Atlas Enderium Maybe, but Nobel Prizes in Physics are given out to individuals, not groups. The man who designed the detector will probably be nominated if anybody is.

+Abdulrahman Mahdaly No longer will September 14 have the stain of being the day that Windows ME was released. Now it will be known as the day gravitational waves were discovered.

+Professor Ess Nope, thanks to the way the internet works whatever day news outlets and social media picked this "trend" up will be the day.

:| I get it...funny funny you are ;)

😂😂😂

Lmao

It's not our fault that our government decided to educate over 300 million people this way, we have no control over what we're taught in the first few years

+StarTrek123456 my guess is they are people who BELIEVE something else.

+StarTrek123456 music

+StarTrek123456 ISIS?

+StarTrek123456 I really think there are automatic youtube downvotes... Ive never in my life seen a video without dislikes. No matter how amazing

Has anyone wondered how the ''thumb down'' feature under the videos works, while the ''thumb down'' feature for comments is out of order?

+Kim Jong Fun technically we are already ;-)

+Beyond Psychology Maybe they'll figure out how to make the board, and paddle, and see some bigger swells!

Hatch Jerod setting off nuclear blast behind a spaceship is one theoretical possibility that has been proposed. Takes a lot of balls to ride that wave lmao

+Beyond Psychology 4 women are up for a Mars mission. Takes more than that! lol

Hatch Jerod um OK.

+ermistan How's Osama Bin Laden doing?

+The Truth depends, which one of them?

+The Truth he's pretty good. sipping tea right next to me.

+Dalton Villanueva try watching the movie 'tere bin laden' its a pretty good movie you'll enjoy it.

+ermistan You really don't need to mention your country.

Especially Albert Einstein he explained this 40 years ago

+burak kerten lol check when Einstein died haha

i mean 140 years ago lol

+Abuzetun Musab Why did I almost cry when he said that?

+Abuzetun Musab Yeah, also be proud for the NASA fake moon landings

+Higgins2001 nice 1

+Higgins2001 They say it right at the beginning of the video. 0:39. NSF, National Science Foundation.

Kojisan1 You think NSF footed the entire bill? And over how much time did they have to build, and how hard was it to hit continuous funding goals? I'm interested in details, because such giant, expensive projects for pure scientific research probably don't just get fully paid for in one check from one foundation - however such projects are incredibly important for furthering human knowledge. It's interesting to learn how these projects not only get launched, but how they are brought to completion :)

+Higgins2001 Tax payers money, but its worth it.

+Higgins2001 About funding ... How much cost one aircraft carrier, ICMB or ICMB platform like a nuclear sub ? The world would be a much better place if a superpowers had act accordinlgy to that fact. But it unfortunately never happens.

+pavolon nope. :/

+undo.kat oh so yeah... np let's science the shit out of this bitch lmao (sarcasm)

+undo.kat Well, it's 1000 times smaller than the size of a proton this far away from the gravity source. Close to the black holes it's enough to tear your atoms apart.

This adds more evidence to inflation theory which means infinite number of universes.

Fred Marz explain? :-)

+.ENGLISH PROFICIENCY i lol'd

+Lyle Mitchell (Nortio) From what i know, Gravity is a physical thing, and therefore could possibly go faster than light, or not, but who knows? its all a bunch of science stuff

Basically means we can possibly time travel now

+byRamzy don't see how gravity has anything to do with time travel but OK.....

+Lyle Mitchell (Nortio) The biggest one beyond anti-gravity would be harnessing these waves and creating free energy.

+Peter G OK that makes sense. a lot more than time travel. awesome

Uninteresting people?

Dumb blonde girls that think the waves will mess up their hair

+steveis1234 lmao

+steveis1234 XD

Most likely flat earthers

They didn't detect anything, they just pulled a slippery slope.

+Faizal Evans That'd explain how smart he was, but we'll never know and saying that can bring out a whole bag of conspiracy theorists

he was a jew. that's why he could figure it out. We'd all be in the dark ages if not for the jews.

+Hatch Jerod Thank you for the insight. Also, I'd like to point out if Muslims didn't exist then we wouldn't even have algebra, so basically if not for the Muslims Einstein wouldn't even be known right now.

We can discuss the piggybacking method on a different page. Shouldn't clutter this one. Just name the page.

alijahshad02 just playing homeslice, The Muslims have definitely had their golden age, as well as the jews under Saul, David, and Solomon. And the egyptians, And the Chinese have had theirs, as well as the Incas, Mayans, and Aztecs who also used algebra as well. God allowed the Muslims to be the smart ones in the right place at the right time. All of those days are over. The state of the world exactly matches what Jesus said the world would be like before his return (Matthew 24 and Luke 21).

Ligo detected a gravitational wave and i detected a chutiya......

😂😂😂👍

Nothing but blood bloody murder

Its not what has religion contributed, but when is science gonna catch up with the Authentic values and revelations thet have stood the test of time in religions/spiritual forms.....Quantum mech...we affect what our awareness focuses upon..."what you think so ye are?... ...........reckon the earths conditions and Capitalism ............................................................. are the direct affects of our collective thinkin?

Genocide

Ever wonder why this world is hellish?

+Colin Vecera cuz sin

Faith in humanity restored.

+Radi Bear (Radioactive TeddyBear) Because of religion, you half-wit

RemixedVoice I agree somewhat, but look at your comment again. Seems a bit hypocritical, don't you think?

+General Sarasota i love hating idiots

Me too but you cant make a comment like this on any science channel without the heathens bearing down.

Feel the intelligent pull, too? RAmen.

EHW2 Yeah people like René Plougsgaard will always express evil.

+Wenguang Jiang I love your comment

Well, I never said the scientists personally played and recorded the music (but the video was nonetheless produced by MIT). Respectfully, I think your comment demonstrates my point. Your "gtfo …" comment suggests you are offended by my criticism and observation, no doubt because of your emotional attachment to the subject matter of this video. But a fundamental element of the Scientific Method is that, through publication, the findings can be subject to criticism and vetted through the crucible of peer review. This serves, among other things, to eliminate any biases that may have influenced the results. One of the invaluable things about Science is that Scientific Theories are as objective as humanly possible. Scientists welcome new viewpoints and Science itself demands criticism. That's because the ultimate goal of Science is to find the truth. If someone criticized the findings in a technical way (as in, hypothetically speaking, "The data analysis does not properly account for statistical deviations observed in prior optical Michelson-Morley type experiments") a proponent wouldn't say "gtfo." Rather, a good scientist might dismiss such a criticism by explaining how it was considered or perhaps accept the criticism and reexamine the data. If wrong about something, a scientist might naturally feel upset about it but could still take comfort that, because of her efforts, Science is closer to the truth. And it's a good thing that the accuracy of Scientific discoveries does not depend on any scientist's susceptibility to being offended. Of course, my criticism of the music is not a criticism of any of the science behind these findings. (I think that's what makes it funny.) And I understand that this video is more of a PR piece than a formal scientific presentation. Nonetheless, I believe that all scientists (generally) and MIT (specifically in this case) owe a special duty of care when communicating scientific discoveries to the public. Scientific understanding of the nature of the Universe greatly impacts each and every one of us in countless ways. Indeed, science has changed the world. With this in mind, communications to the public should reflect how indispensable objectivity is to science. And such communications should further reflect that any particular conclusions being presented were reached as objectively as possible. The musical soundtrack to this video flies in the face of objectivity. Actually, the very purpose of music in film is to illicit an emotional response and enhance the subjective experience of the viewer. Filmmakers and composers are fully aware of the manipulative power of music, which is why it is such an effective tool in their creative process. In a way, the use of music in film is to Create bias - the exact opposite of Science's aim to Eliminate bias. Therefore, scientists (and people speaking in their behalf) should be exceedingly careful about using music in scientific communications to the public to avoid any suggestion that the viewers are being manipulated into a particular point of view. Plus, this particular music is just bad. It's just some kind of superficial, feel-good, and pretentious fluff. There's nothing creative or interesting or complex in it's composition. The arrangement is typical. The production is boring and polished. There's a higher level of musical accomplishment in the "sound" of the gravitational waves themselves. Let me just add one more thing, just to be clear: I'm perfectly ok with scientists who use interpretative dance when engaging with the public.

Lustration well let's see you find the only fucking thing in the universe that can MOVE AND STRETCH the universe other than itself...

+Spliter i got this comment from reddit, user /astrokiwi Two big things!Firstly, General Relativity has always predicted that gravitational waves should exist. However, they are very weak, and even the most sensitive detectors should only detect the most dramatic ones - the "chirp" of gravitational waves that comes from the merger of two neutron stars, or even better, two black holes.Recently, the LIGO detectors have been upgraded so that they finally have the sensitivity to detect the strongest of gravitational waves. And a few months ago, both sets of detectors (one in Louisiana, one in Washington state) detected a chirp of gravitational waves, fitting exactly the pattern of frequencies you'd expect from the merger of two black holes about a billion light years away with a mass of about 30x our Sun each.This detection is a massive confirmation of General Relativity. It would be worrying if we didn't detect anything, but this really confirms that our understanding of gravity and the universe is correct.Secondly, this opens up an entirely new field of observational astronomy. Astronomy works mostly through telescopes that observe different types of light waves - visible light, infrared, x-rays, radio waves, etc. But gravitational waves are an entirely different thing, and they give us a wholly new point of view on the universe, letting us see things we couldn't see otherwise.For example, something that's 30x the mass of our Sun is a pretty small object to see at a distance of a billion light years! Black holes are also really really small (these are like 90 km across). So we detected something less than 100 km across that was a billion light years away! And that's something that would be pretty much impossible to do with any other current method.It really is a wholly new window into the universe. www.reddit.com/r/explainlikeimfive/comments/459boe/eli5_why_is_todays_announcement_of_the_discovery/

In my humble and respectful point of view, this discovery is important because, as you said, it confirms that the knowledge we had about this was correct. Can you imagine being wrong? Can imagine needing to create new theories like this? I mean, I don't think that happens every day.

+Spliter I think it's important that the theory in and of itself was confirmed, as we know that general relativity is (as far as we can measure) correct. Knowledge for the sake of knowledge is a good thing. Practically, this discovery welcomes a new era of research via gravitational waves. More thought and money will now be put into experiments and projects based on the idea now that it is confirmed.

No one knew what made gravity tick before this discovery. Surprisingly enough, it's one of the least well known fundamental forces in the Universe. Now we know for sure that gravity acts like a wave. It's huge news.

It will give us a basis on how to make FTL transport, no joke

Roll a canon ball in a circle on a sheet of cloth. Wave like moments are created from the content pushing and pulling off the canon Ball. Now scale it to a Massive black hole rotating around another massive black hole on the fabric of space. The waves generated from this movement are the gravitational movement. They are detected based on the general theory of relativity.

@@420sakura1 A sheet of cloth is pure matter, and we have no information from any detectors that indicate that gravity is something material. Nor can we register a wave based on a theory. Unfortunately, this is an easy conclusion, like so much else within the scientific belief system, where it is important to present the belief as proof, without there being any proof. I am not saying that a wave was not detected, but what I am saying is that we do not know that it was a gravitational wave.

+Pronoy De Hey, maybe you already found answers to your questions, but if not, I can provide the answers to some of them. For your first question, I do not know anything in particular about a tolerance level of the angle, but I can say that the arms consist of several shorter, very precisely constructed parts that had to be welded together. The limbs can be longer, in fact an increase of length is extremely helpful. The amplitude of a gravitational wave decides how high the proportional change in length of an object is going to be. Therefore, if you have two really long arms, the absolute length difference between the two arms will also be really big in comparison to the length difference of smaller arms. This results in a heavier phase shift of the two laser beams and ultimately a stronger signal on the photo detector. The curvature of earth does have an effect. In fact, when LIGO was under construction, Rainer Weiss (the guy who came up with the idea of laser interferometry) woke up drenched in sweat one night as he realized this. Afterwards, he tested how heavy the effect was going to be by telling someone to shine a light exactly through the center of one end of the arm. At the other end, it appeared slightly shifted towards the top. To fix this problem, one of the ends was simply mounted higher above the ground than the other. I don't think there's a specific direction along which LIGO must be oriented, at least not when you look at one observatory in particular. Relative to the second observatory, however, the first observatory must be aligned in a particular way so that the direction the gravitational wave came from can be determined.