The Absurdity of Detecting Gravitational Waves

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It's Okay To Be Smart : A megawatt *continuous* laser? That's a helluva beam. I toured the Petawatt laser in Austin but that thing only fires for like a trillionth of a second

Orgil B Onolt : I am so excited about the future since we haven't discovered the majority of all things. Like Newton said, great scientists are usually just little boys playing on the seaside picking up a pebble or two while the vast ocean lies undiscovered. I hope to make a contribution towards our understanding of the universe at some point too. You Derek, definitely make a good contribution my man. Thank you for these videos.

Salty Admiral : Is it just me, or does Prof Rana Adhikari look _exactly_ like you want a professor to look like? :) I don't know what it is, but I just love it when extremely important people does extremely important work, dressed like they are enjoying an Piña Colada on a tropical beach instead. That is what I love about the field of "academia", or should I simply say public sector, they usually have a completely different work culture than the "corporate office" culture that has spread way too far imo.

erikig : Rana Adhikari looks like the scientist you have to drag out of the bar to save the world at the end of a sci-fi movie when the pencil necked number cruncher have failed

Marc F. Nielssen : A typical science freak. Does not iron his shirts. 😆

Miika Mäentaus : That guy's shirt has been affected by some gravitational waves

Vincent Car : How can you not like this video? This is the kind of stuff that keeps me optimistic about mankind, absolutely amazing

Kristian Dimitrov : When scientist says 'inch' my brain hurts.

guy anello : is this man wearing crocs...?

Simon Engelholm : The smaller a thing is the bigger the machines you need.

David Anber Criminal Lawyer : 1:54 vs. 7:20 — which is it?

Ahmed Grwan : congratulation to professor Rainer Weiss for detecting gravitational waves and the 2017 nobel prize :) .

emteiks : such a nice discussion to have by the afternoon tea

problemsolved : Provided I don’t get a quiz, I think I learned something here.

Veritasium : Prof Rana Adhikari is clearly a star. Here's how he felt when he learned of G-wave detection: Those glasses provide laser protection - the laser in that lab won't vaporize your head but it could burn your retinas.

kdmc40 : Heres the way I see it. Firstly, pretend theres only two objects in the universe. No matter how far apart they are theres going to be a gravitational connection. Otherwise the gravitational calculation between the two bodies would at some point be zero, it never is. Now take 1 black hole, the gravitational effect goes on for ever but its constant, meaning gravity does not have a frequency. Now take 2 black holes in relative close proximity which are in orbit around one another and suddenly the gravitational effect has a frequency. Its the frequency you are trying to detect. What I cant understand about all this is how could gravitational waves not be there! The reason they are difficult to detect is the universe is full of interacting gravity fields and the distance at which the gravitational waves were created!

Connor201 : 2:59 coolest guy to ever live

Michael Ryd : At 5.40 mr Rana says it´s all bogus and can´t be made... I think the video should have ended there!

BCML : Did anyone come here after watching his latest video?

Tai Jarman : Can't wait until 2060 when we all have gravitational wave detectors in our phones.

eiyaz00 : Did we know the two black hole collided before the waves hit? Or did we find out after it happened?

Shalva Qutelia : Something tells me that a gravitational wave wouldn't add more distance for light to travel but stretch both it's frequency and the measuring instrument not letting us notice any difference

nobodyzero : I understood absolutely every single word of this. Morover, along with Stephen Hawking, have written papers on the subject. Then I woke up and fell out of bed.

David Jackson, II : So the next step based on detecting all of the black holes in the universe is a star map based on those black holes?

SmarterEveryDay : I really liked this man. Is it really just a Michelson Interferometer on a really incredible scale? Excellent job on this video. Prof Adhikari did a FANTASTIC job as well.

StanJan1958 : What a waste of time and money. Words Money and influence. Tell a story long enough and people start believing it.... Easter bunny anyone ?

kdmc40 : If I wanted to measure gravitational waves I'd just observe the moon. As it orbits the earth it creats a gravitational wave which can drag the entire oceans all over the place. No fancy equipment needed, just a pair of wellies, LoL 😂

101perspective : I'm still confused by how they can tell anything took place. His explanation doesn't make any sense to me. He talks about how the time it takes changes. However, time is distorted as well isn't it? If the wave reduces how far the beam has to travel it would also be increasing how long it takes to travel that shorter distance... such that what you would observe would be no difference at all compared to a beam that didn't get distorted. I get that they are pretty confident that they can tell when the beam gets distorted, I'm just not seeing it in their explanation.

GalactiNaut : You know what's funny about the last thing he said.....we do have alien civilization levels of technology. What would humans from 500 years ago think if we just appeared with the technology we have? It would certainly seem impossible to them.

Star Shine : I like to watch this sort of videos and pretend to understand everything

Junan Lin : Nobel prize in physics 2017!

Skinny Dugan : People need to stop being so close minded i'm just saying 200 years ago things that look like magic are common knowledge today

Albert 2017 : It is physically IMPOSSIBLE that LIGO's interferometers can really detect a motion/disturbance in the order  of 1/10,000 the size of a proton (10^ -15 m.) as they claim. The shortest time interval ever measured (by Max Planck Institute in Nov. 2016) is 850 zeptoseconds. But in that time interval a light beam has already traveled 3 x 10^8 m/s x 850 x 10^ -21 s = 2.55 x 10^-10 m. = 2.55 BILLION TIMES the alleged size (10^ -19 m.) LIGO's technicians claim they can measure, as a disturbance ("gravitational wave") interfering between laser beams. Moreover, under the nanometer  order of magniture (angstroms, picometers, etc.) we find the VIBRATIONS/OSCILLATIONS of atoms making the solid (silica) crystal lattices of mirrors, so the distance between the source of laser beams and the mirrors splitting them is becoming no longer stable:  impossible to really detect a change of distance (or of time interval, or of pulses in a time interval) under 0.2 nanometers. Any change below that size is wiped out and overlapped/cloaked by the oscillations of atoms. So, the claim by LIGO-Caltech technicians is totally bogus(see here

Enigmatic Monkey : Rana is from Nepal , amazing i never knew .

1ucasvb : Hah, Prof. Rana is awesome!

Andalusia T.O.L : *Youtube~"No -- Gravitational Waves have been observed | Space News"* Back to the drawing board people. Try using observational physics instead of philosophical theoretical mathematics this time guys; and study the truth that HAS been discovered by plasma physics/ cosmology.

Mike Collins : As it has been proved that LIGO works - by detecting ridiculously small deviations - would the Michaelson-Morley experiment have worked if their detectors has been of equivalent sensitivity?

Andalusia T.O.L : I agree with the man, shut it down! It's just more waste of our money on erroneous highly speculative theories. General relativity is wrong. There are no black holes, and there is no dark matter or dark energy, blah blah blah, and there is no so-called fabric of space-time. **

SA66 : Adepts of Einstein are funny.this looks guys forgot about formal logic laws)Whay

butter my eggroll : *video starts *doesn't understand anything *keeps watching *video ends **feels smart*

biggles258 : If I understand this correctly, if we were unfortunate enough to receive a gravitational wave which strikes the detector at 45 degrees (i.e. equal distances from the x and y axes), then it would expand both arms by the same amount and at the same time. So we could be receiving gravitational waves from the largest event of all time and not 'feel' a thing. Yes?

Vicky Medrano : He's so handsome is actually distracting XD

Movie Spoiler : got asked about this in my a level exam today🙃

Chad Swans : Cough cough........BULLSH.............T!!!!

SeanHodgins : There is a guy who loves his area of research.

Aslam Khan : Bob vegana man 2:59 Kidding I'm Also an indian.

Andrei Serban : okay it was very hard to detect gravitational waves and there were thowzends of dolars spent but how do gravitational waves help humanity

Andalusia T.O.L : *Youtube~"Quantum Craziness | Space News"*

Andalusia T.O.L : 🙄 *Youtube~"The Electric Universe Gravity Fallacy | Reading ROBERT OTEY"*

hilema41 : OK it's awesome but what makes me smile is seeing that in this temple of science and centuries of shared human intelligence, the first aid kit is hold by zipties... ;)