The Best Test of General Relativity (by 2 Misplaced Satellites)
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- Опубліковано 22 гру 2018
- A launch mishap led to the best experimental confirmation of gravitational redshift. Get a free audiobook with a 30-day trial of Audible: audible.com/VERITASIUM or text VERITASIUM to 500500
Huge thanks to
Dr. Pacome Delva: ve42.co/pacome
Dr. Sven Herrmann: ve42.co/sven
Gravitational Redshift Test Using Eccentric Galileo Satellites: ve42.co/GRtest
Disclaimer: It is arguable what is THE best test of general relativity because there are different ways to test the theory. This is the best confirmation of gravitational redshift, which is one of the three original tests proposed by Einstein.
Special thanks to Patreon supporters:
Donal Botkin, James M Nicholson, Michael Krugman, Nathan Hansen, Ron Neal, Stan Presolski, Terrance Shepherd
Animations and editing by Alan Chamberlain
Music from epidemicsound.com "Subtle Substitutes 2" "A sound Foundation 1" "Cell Research 1" "Particle Attraction 1"
![ПОЛНАЯ ИСТОРИЯ ЭКЗОРЦИЗМА [Топ Сикрет]](http://i.ytimg.com/vi/qBySr6Bt0B8/mqdefault.jpg)
I’d be interested to know your thoughts on this format. Would you like to see more ‘Talking to scientists about their recent publications on Skype’? Maybe not on this channel but on Sciencium perhaps?
Yes!
I love the idea of listening to the scientists talking about their projects and discoveries. Please do more of those :)
This video was 𝙞𝙣𝙘𝙧𝙚𝙙𝙞𝙗𝙡𝙚. My jaw was on the floor by the luck!
Woah! Do you have another channel too? I didn't know that
Actually, Derek, 𝗩𝗲𝗿𝗶𝘁𝗮𝘀𝗶𝘂𝗺 is a fine home for all your videos. 𝗦𝗰𝗶𝗲𝗻𝗰𝗶𝘂𝗺 is nice, but I don't think your subscribers care about the separation. The format was great. Do all your formats here. (edit) Also, freebie tip: reformat and repost your Sciencium videos here as Veritasium videos for near effortless view time. You ARE Veritasium. Drop the identity crisis. Huge fan. (edit 2) Vikrant's comment illustrates my point. You don't need the separation. Stand behind your brand. (edit 3) Also, splitting content between channels mostly serves to reduce the rate of release on each channel. Can you see subscribers in common? If they are mostly in common, the separation should be detrimental interms of 𝘵𝘩𝘦 𝘢𝘭𝘨𝘰𝘳𝘪𝘵𝘩𝘮.
I liked the "New high score" comment. Science kind of feels like that sometimes doesn't it?
💖🇳🇵🇳🇵🇳🇵🇳🇵💖💖💖💖🇳🇵🇳🇵🇳🇵🇳🇵🇳🇵🇳🇵🇳🇵💖
SmarterEveryDay I like your channel, Destin!
very much so, especially as they mentioned, "we already know that general relativity must not be the complete solution" (galaxy rotation etc.), so all we can hope to do is add to the pile of "what we know, and to what degree do we know it" until we can collect enough anomalies (in Thomas Khun's sense of the word) to explore the new paradigm. And measurement standard's breakthroughs have always led to bursts of innovation...BTW, props to your video on whitworth (Smarter Every Day 206). Thanks Destin, thanks Veritasium--You guys (and the others) are making a huge difference on the front lines! God Bless
It sure does. Like in your video about precision measurement, who needs to measure a millionth of an inch? But sometimes you really do.
Love you Destin
Just as a completely irrelevant aside:
I worked on GPS in the 90s. We had to correct for tiny discrepancies in calendar time compared to real time (the Earth orbits the Sun every 365.25 days, giving us leap years, but for space we have to count the leap seconds). For orbits, it matters that Earth isn't quite round. It's a bottom-heavy oblate sphere. For the clocks on GPS, it matters that the ground is sometimes closer and sometimes more distant in a perfectly circular orbit, because of elevation changes in the ground itself. Large mountains have their own gravity systems that can change the clock times on something as precise as a cesium beam clock and the speed the bird flies at. I wasn't any kind of a scientist in those days, just the guy who ran the coms for satellite contacts. This all blew my mind.
Wow
Really cool!
this reminds me of the NASA GRACE mission. They measure the change in the distance between two satellites to pick up the changes in the local gravity field of the earth, essentially measuring terrestrial water storage change over land, among other things
Bvhbg
@@bess3327 I read about that too in time magazine. My theory is that we need a constellation of satellites to study the radial, pole to pole and circumferential variation. We need multiple satellites because we want to rule out the possibility that variation is caused by noise.
-We confirmed General Reletivity, Unfortunately.
-You say unfortunately?
-Yes because we are looking for deviation from General Relitivity because we know this is not the ultimate theory.
ngl best line I ever heard.
Yeah sadly there's some other theory that agrees with Quantum Mechanics
@@huskiehuskerson5300 yes.. currently the most promising theory is the "String theory" but it needs a 10 dimensional universe to be proven as a fact... scientists are currently working on that
@@vader567 That's the only problem with it that it can't be tested
@@huskiehuskerson5300 I think now they are just trying to simulate a 10 dimensional universe and see if that universe has the same properties our universe have and then they will be able to say... if our universe is actually 10 dimensional
They don't like general relativity because that means falling things are not accelerating but are standing still.
Imagine the conversation: "I'd like to borrow your misplaced satellites for three years"
They had to wait for all the galileo satellites to be up there to use them anyway.
Crb
The message here is: Try, because even in failure, you can succeed.
Isn't that a quote from Sun Tzu? Art of War. Pretty sure he has a quote that's very similar to this.
There's another quote that basically says. You don't fail 100 times. You discover 100 ways not to do something.
Pesterenan: As Adam Savage says "Failure is an acceptable result"
I would say ''Failure is not the end, failure opens another door, maybe the door of success''.
Science is a one big learning from failure
"We confirmed the general relativity... unfortunately. 🙄"
Perfect summary of the scientific method!
Against common believe, the scientific method is all about disproving itself.
Scientists never complain about people trying to refuse their theories. They are only upset about the quality of the criticism not meeting their standards.
More like the engineering method I would think. Airplane falls from the sky. Engineer says "I just confirmed gravity".
e=mc2 is ridiculous if light has no mass...we know it has energy but if m=0 then light energy =0 Albert was VERY VERY WRONG about all of his claims. Light is a particle has mass and can accelerate SHOWN HERE... we have worshiped nonsense for 100 years. ua-cam.com/video/DfFtPahuKzo/v-deo.html
@@mudfossiluniversity
e=mc^2 wasn't Einstein's equation. That's the short version that gets repeated.
Einstein's actual equation was:
e^2 = (mc^2)^2 + (pc)^2 - p being momentum.
That formula explains the energy of zero rest mass light.
@@YTEdy Still completely wrong and a vacuum makes no diff because it is magnetic attraction (gravity) that compresses the 21cm line on earth vs less compression in space. Therefore atomic clock is the issue. So much so wrong and the atom is 100% electrons in resonance stable freq.
Great video!
Thank you!
Thanks i appreciate it
@@veritasium omg
@@Salmanul_ ഡേ ഡേ അപ്പീ എനീച്ച് പൊടെ
There are no mistakes, only happy accidents. -Bob Ross
That's pretty relative, so I bet there are.
Sahil Tiwari WHOOPS, I ran over someone with my car. Oh well, thanks to Bob Ross it is a happy accident :)
Ever make mistakes in life? Let's make them birds. Yeah, they're fecking birds now.
Sahil Tiwari no... Master Uguay...
happy accident when my mom and dad created me
5:19 - You know the science is getting serious when you have 13 significant digits...
You know the science is getting serious when the momentum of photons from the Sun is the largest source of error
@@AhnafAbdullah Indeed.
Guess you mist the day they talked about Sig figs in your science 101 class. There is only 3 Sig figs. Sorry but you just wrong.
@@adventureswithfrodo2721 guess you "mist" spelling 101
Adventures with Frodo also... there are 3 decimal places... there are 13 significant figures. 3 significant figures would be 1,540,000,000.000
The more you look into General Relativity, the more of a genius you think Einstein was.
and the weirdest thing is that he did not win a Nobel for this. but the foto electr effect
Please watch on YoTube: ... EMS Einstein Munchausen Syndrome ...
Einstein WAS a genius but to say he made GR all by himself is a mistake. It was a gathering of hundreds of scientists, and Einstein built atop it, giving it consistency and legitimacy. But he did not figure all that out by himself, not by a long shot.
@@PedroAmAthats pretty great in itself but i get your point
You haven't even started to look. You are just watching propaganda. Relativity is a completely retarded theory that fails on many levels. Math, logic, etc
In case you rely on captions to understand this video, the captions about the conclusions are wrong (8:25~8:32)
This is what they are actually saying:
8:25 "I think we both agree that we didn't prove Relativity wrong"
8:30 "The reason is that we confirm the General Relativity ...unfortunately"
If they knew English language then why would they rely on captions and if they don't know well then ur time is wasted😂😂
@@vedmainde good one
@@vedmainde I know the English language well enough and still rely on captions from time to time due to some accents (e.g. very thick British accent or other Europeans accents).
@@vedmainde Deaf people?
@@vez3834 yeah👍🏻
turn a bug into a feature
Gmail... unsend feature
Bethesda…
Ubisoft…
EA…
Apple
GunZ the duel
Mojang Studios
The circumstances that led to this test/experiment, the willingness of people to cooperate and trust each other, and bumps along the way make this story incredible.
Please watch on YoTube: ... EMS Einstein Munchausen Syndrome ...
Great video Derek. Love the graphics and animations. Keep up the great work :)
"Trying is the first step to failure" - Homer Simpson.
This was a really cool video Derek! I think this format works great on this channel, I'd definitely watch more of this kind of thing.
It also made me wonder about how much we know about the limits of our understanding of general relativity. The scientists said that they were disappointed to see no deviation from the theory. Do we know where we think we might see a deviation, or is it a race to more sensitive measurements? Next experiment, a clock in an elliptic orbit around the Sun perhaps?
It is indeed a race to the bottom - if theory matches experiment down to 9 or 12 decimal places, it’s going to look pretty unbeatable. Up until this experiment it was good to 4 or 5 decimal places
General relativity as we know it is incomplete, because at very small time and length scales it is incompatible with quantum field theory, which itself is very successful in describing non-gravitational interactions. I think most physicists believe that general relativity will likely hold up for all measurements that involve times/distances much greater than the Planck time/length, but there is no experimentally verified theory of quantum gravity that works at such small scales.
@@Pukkeh Hi! How much successful is quantum field theory describing gravitational interactions? So I believe quantum field theory ',,, as we know it is incomplete'. I fully respect both theories in their proper scenarios.
WHY AND HOW THE CLEAR, TOP DOWN, ULTIMATE, AND BALANCED MATHEMATICAL PROOF OF THE FACT THAT ELECTROMAGNETISM/ENERGY IS GRAVITY IS GIVEN BY THE FACT THAT E=MC2 IS F=MA:
Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Consider the man who IS standing on what is THE EARTH/ground. Touch AND feeling BLEND, AS ELECTROMAGNETISM/energy is gravity; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS E=MC2 IS F=ma !!! SO, objects fall at the SAME RATE (neglecting air resistance, of course); AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. Moreover, the rotation of WHAT IS THE MOON matches it's revolution. The Earth constitutes the FULL DISTANCE in/of SPACE in BALANCED and UNIVERSAL relation to what is the MIDDLE DISTANCE in/of SPACE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!!! (The sky is BLUE, AND THE EARTH is ALSO BLUE. The stars AND PLANETS are POINTS in the night sky !!!) Accordingly, time DILATION ultimately proves ON BALANCE that E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity !!! INDEED, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. Gravity IS ELECTROMAGNETISM/energy. E=MC2 IS F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. Think. It ALL CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand. Great !!! SO, a given PLANET (INCLUDING WHAT IS THE EARTH) sweeps out EQUAL AREAS in equal times consistent WITH/AS E=MC2, F=ma, AND what is PERPETUAL MOTION; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity IS ELECTROMAGNETISM/energy. The stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of WHAT IS THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light (c); AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. TIME dilation ULTIMATELY proves ON BALANCE that E=MC2 IS F=ma, AS ELECTROMAGNETISM/energy is gravity. Great !!!! Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity !!!! It all CLEARLY makes perfect sense. MAGNIFICENT !!!!
By Frank DiMeglio
@@norbertocriado7718 WHY AND HOW THE CLEAR, TOP DOWN, ULTIMATE, AND BALANCED MATHEMATICAL PROOF OF THE FACT THAT ELECTROMAGNETISM/ENERGY IS GRAVITY IS GIVEN BY THE FACT THAT E=MC2 IS F=MA:
Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Consider the man who IS standing on what is THE EARTH/ground. Touch AND feeling BLEND, AS ELECTROMAGNETISM/energy is gravity; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS E=MC2 IS F=ma !!! SO, objects fall at the SAME RATE (neglecting air resistance, of course); AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. Moreover, the rotation of WHAT IS THE MOON matches it's revolution. The Earth constitutes the FULL DISTANCE in/of SPACE in BALANCED and UNIVERSAL relation to what is the MIDDLE DISTANCE in/of SPACE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!!! (The sky is BLUE, AND THE EARTH is ALSO BLUE. The stars AND PLANETS are POINTS in the night sky !!!) Accordingly, time DILATION ultimately proves ON BALANCE that E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity !!! INDEED, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma. Gravity IS ELECTROMAGNETISM/energy. E=MC2 IS F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. Think. It ALL CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand. Great !!! SO, a given PLANET (INCLUDING WHAT IS THE EARTH) sweeps out EQUAL AREAS in equal times consistent WITH/AS E=MC2, F=ma, AND what is PERPETUAL MOTION; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity IS ELECTROMAGNETISM/energy. The stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of WHAT IS THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light (c); AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. TIME dilation ULTIMATELY proves ON BALANCE that E=MC2 IS F=ma, AS ELECTROMAGNETISM/energy is gravity. Great !!!! Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity !!!! It all CLEARLY makes perfect sense. MAGNIFICENT !!!!
By Frank DiMeglio
Woah nice collab with Jacksfilms
I'm glad I was not the only one
I was about to say that lmao
Bruh lmao
I scrolled down just to make sure this existed.
Jacksfilms dad
Often struggle with the concepts, but love this video and the format. More please!!
This was very cool! Loved the format too 🙂
Hey. My parents also said they were happy about their accident
xD
But they have too... ;]
The Mastr They drop you when you were a baby?
so you have a brother or sister?
Bruh😂
Veritasium exceeds my expectations in every video! By the way, If you have trouble understanding this video (which is incredible), Watch a video about Einstein's Visual experiment about general relativity- the 2 lightnings experiments.
Tiny Medicine link?
This Documentary explains it very well :www.imdb.com/title/tt5016974/
This YT video is somewhat good, but no where near the above film: ua-cam.com/video/-jJ5PPcLUw8/v-deo.html
@@hrishabh /watch?v=-jJ5PPcLUw8 was in NGC's "Genius"
I didn't understand (because my low level in english) who are the two other scientists (not their names, in wich way are they related with the satellite)?
@@quaerenz they worked on the galieo project I beleive
I love this format, I love the other one. Thank you for your wonderful job.
Thank you for interesting subjects and good and concise storytelling.
Somewhere in heaven, Albert Einstein just went, "Booyaa!!!"
@@anandsuralkar2947 Well him inventing something and it turned into a bomb alone wasn't his fault. He actually actively helped with that though so maybe it was partly his failt, although he was actually German. He was Jewish though so he definitely wouldn't have supported the Nazis.
@@circuit10 yeah the logic is same as if we should blane aryabhatta (a hindu mathematician ) for inventing the hindu numbers,number systems,geometry,trignometry etc whic led to such destructive sciences😆😆
True
@@circuit10 or lets say eve adam or the first accidental fire deiscovered by mankind😂😂😂
@@anandsuralkar2947 ok.… and? And for the record Eienstein firmly believed A-Boms were not possible. Upon finding that they were he tried his best to prevent their use. The man revolutionised physics and our understanding of the world
This kind of thoroughly informative and not completely dumbed down videos is exactly why it's worth waiting for your videos at their infrequency, I don't feel it needs to be split to Sc
Ok, thanks for your feedback?
@@veritasium ??????????????
This was so dang interesting. What a fantastic channel.
You're actually talking method, noise sources, and so on. God that's awesome.
One of the person on Skype looks like jackfilms after 30 years
Wich one, bro?
persons*
Toh Kya kare hum
Finally! A Veritasium video!
Amazing. I am so glad we have people that can grasp this science. What a fortunate event!
3:36 I love me some simple harmonic motion and sine waves.
Fascinating! I followed Gravity Probe B in detail during the whole sequence of it's pre-launch and post mission analysis -- but I never knew what Gravity Probe A was about! Thanks for the info!
I was waiting for you to talk about the new "ytterbium-atomic-clocks" for the whole video, because this was my first tought when I saw you video. XD
Altough that didn´t happen it was still a great and informative video, keep up the good work.
Great Stuff , Thanks!! You Explain things in Simpler Terms To Comprehend.
I have had a few drinks and wasted too much time commenting on you tube sites that
say the earth is flat or that Einstein lied or gravity doesn't exist etc etc , stumbling on this clip has restored my faith in humanity, thanks for posting this .really enjoyed watching this
cheers
This feels like a good lesson for optimism and determination. Through catastrophic failure, with the mental fortitude to make the most of a bad situation, something brilliant was achieved. Nice one.
Rosio durcal
What a lucid explanation of time in gravity wells! Brilliant graphics! Yes I like this interview format.
this video is the best that happened this week xD my dad once nearly fought me by trying to prove this wrong... im LOVING this. thank you.
Your passion to learn is inspiring to people like me. I’ve gotten stuck in a rut and videos like this cheer me up.
Thanks for opening my mind, Derek!
lesson learned:
if you fail, look for things to do to make that failure a success on other thing
If all you have is lemons...make lemonade.
@@daveedmunds4609 If my "lemon-ade" you mean a "lemon grenade" that *BURNS THEIR HOUSE DOWN!!*
Then Cave Johnson approves.
That is sadly what is done in scientific studdies: If you can't show what you intended, find something that is significant and act as if that isn't chance.
I want to say three things...
1. Your channel is awesome!
2. (Because) your research are awesome!
3. (Moreover) you are doing a great thing by spreading knowledge and the most important one is you are helping us to visit unseen places and see things virtually.
4. (Hence) the most awesome person with lots of modesty, innocence, honesty and genuineness seen is YOU!!!!👍👍👍👍👍
I always think “wow this video is long” until it’s over, and I want more more more!
I love the scientific method. It’s not, “hey, we’re right! yay!”, it’s “hey, we’re right! dammit!”
All your videos are just awesome ...
Really insightful, thanks!
I love time dilation and the science surrounding it, there are so many things more to test!! I can't wait until we're farther along in space travel and we can have parties in separate gravitational fields video call each other. Would either feed change speed? Would the change in the speed of the transmission destroy the message before reaching its receiver??
Science is cool
What an insane coincedence. I just learned the einstein's field equations for general relativity no less than 3 days ago, and went over the equations for time dilations for special relativity and general relativity in my textbook no less than 3 hours ago. then this video just randomly pops up in my feed and it came it very recently.
Chris Choi
I like this very much
The algorithm owns you now
Chris Choi
"I just learned the einstein's field equations for general relativity no less than 3 days ago"---
1. Maths (Equations) *ISN'T* Science (Physics).
2. "The Best Test of General Relativity" (Video Title) ---
Every Delayed Choice and/or Quantum Eraser Experiment VALIDATE Beyond a Shadow of a Doubt that 'GR' is a Tear Jerkin' Belly Laugher; Phlogiston has more Veracity.
"Quantum mechanics is *INCOMPATIBLE* with general relativity because in quantum field theory, forces act locally through the exchange of well-defined quanta."
einstein.stanford.edu/content/relativity/a11758.html
And since...
"The Laws of Physics are *ALWAYS* Quantum Mechanical Laws."
Ramamurti Shankar; CHAIR/Professor of Physics, Yale.
Quantum Mechanics II. (33:50 minute mark)
'GR' is *"KABLOOIE !!"* (Industry Phrase).
Of course, 'GR' (and 'sr') was PUMMELED by Elementary School Kids...
*Primary School Falsification:*
*TIME* is a "Conceptual" relationship between 2 motions. Specifically, it's based on an "Alleged" single rotation of the Earth on it's axis in respect to the Sun (A Day).
It's a "CONCEPT" (Non-Physical). It is without Chemical Formula/Structure, no Dimensionality/Orthogonality, and no Direction or Location. You can't put some in a jar and paint in red.
I mean c'mon now, let's reason together...can you Dilate/Bend/Warp Non-Physical "Concepts"??
Is it your contention that if you have Poison Ivy on the brain you could scratch it by thinking of Sandpaper??
"FREEDOM" is a Concept also...can you Bend that?? lol
That which you are using to measure...isn't the thing you're measuring.
*A Football Field is 100 Yards long but a Football Field isn't Yardsticks!! If I bend a Yardstick...does the Football Field bend also?*
(The Yardsticks are analog to the Clock) -- (The Football Field is analog to TIME)
So if something affects say...Cesium Atomic Clocks, or any modern "Clock" for that matter, does that then IPSO FACTO mean the Earth's "Alleged" rotation in relation to the Sun is Affected?
These Two Mytho-matheMagical Fairytales (sr and gr) were falsified 30 seconds after their respective publications by 3rd graders @ recess, for goodness sakes.
*IN TOTO, each are Massive Reification Fallacies on Nuclear Steroids!!*
Recommendations:
1. 'File 13' your Textbook.
2. HEAVILY Reprimand your Professor for teaching Fairytales.
3. Drop this course/school and get a REAL "Science" Education.
Hope it helps
Google power.
Quantum Eraser Ya know, it’s fine to not understand general relativity, quantum mechanics and physics in general. You have no idea whatsoever about either, particularly since you seem to believe that mathematics is scary witchcraft to be avoided at all costs. What is NOT okay is to lie to yourself and pretend to be intelligent by looking up random quotes.
Being ignorant of physics is alright. There’s nothing wrong with being ignorant of a certain subject, or finding maths to be a bit hard. Pretending to not be ignorant, however, particularly by spouting nonsense, makes you a fool. And that is simply sad.
Good explanation about the clock differences. And about atomic clocks.
Very wonderful
explanations beyond text book formalism...✌️
Always love how easy Derek makes it to follow regardless of whether he's looking into simple or more complex ideas.
Wow! Just mind-blowing! So the best way to time travel into the future right now in that case is to live on a space station far away from Earth and then return to Earth a few years later? Would one year in space far from the Earth and other planets be significant enough a time frame for us to experience a significantly future Earth upon returning? Awesome video!
Thanks Mikey! The scientist was telling me that over 10 years the time difference between the satellite and Earth would be about 0.1s so... not significantly the future but future nonetheless
wow you’re here
Isn't it that clock ticks slower near large bodies and faster away from it. So if you we are to live on a space station for long and then return to earth wouldn't we be a bit earlier according to our clock on the space station.
Then... isn't it time travel to past?(and not future)
That's one way to travel into the future, and is the only one that's technologically feasible today. The other method is time dilation, or moving so close to the speed of light that your movement through time is slowed.
Yeah, but that way you would only travel to your own future relative to people on Earth. Meaning - more time will have passed for you that for them. To really travel into Earth's future, you need to go to a place with much greater gravitational pull. That way little time will pass for you and a lot will pass on Earth. Assuming your journey from Earth to that place is immediate, if a year passes for you, depending on the gravitational pull, 10, 20, 100 years may have passed on Earth.
Watching videos on science is brings so much understanding, studying it on paper was not so useful growing up.
"unfortunately".. very insightful. Love it!
Pretty lucky to have this error with global navigation satellites specifically. The whole 'needing an accurate clock' thing is pretty well covered since that's kind of the satellite's purpose in the first place.
I've never heard of relativity described as "gravitational red-shift." That actually makes it way easier to visualize for me
Wow! that's an amazing video, thank you for sharing
Thank you. This will settle an argument I'm having with my dad. great Christmas dinner material.
Like most discoveries this high score was a win brought to us in part by an error. I dig it.
Now *that’s* what you call best out of waste!
Well, _million dollar waste._
And how would you scientificly describe that metric " best out of waste". Probably the same way that these two scientists would say that a test which clock data had to first be altered to account for sunlight and then had to be computer modeled and post processed to get what they said was "close enough to use." The measurement uncertainty should have increased by a factor of 5 as the data was manipulated by a factor of 3. If they had to alter the data to account for sunlight it invalidates the experiment. If the data had to be modeled to get the noise low enough (and I don't know how accurate clocks as impressive as these were supposed to be would have issues with the measurements because of sunlight, because the only data is the clock measurement and the periodic measurement) to see the wanted observation it invalidates the experiment. This is confusing how people eat this blatant nonscience up.
more like euro
The issue is that it was an A to B comparison. Clock A on sattelite orbits and records time measurement as height changes throughout period of observation. Clock B on the ground records time measurement throughout period of observation. Compare clock signatures after test and see if clock A was any different than clock B at any point throughout 1000 days of measurement. How does the sun have anything to do with this basic test. Even if the altitude of the sattelite was changed that is fine. That is what was going to enable the ability to destinguish the hoped for effect as the gravity at different heights would cause a change in clock A. The data as the test is set up had no need to be altered except they tell you in the video if they didn't alter it then the measurement wasn't close enough to validate the hypothisis. Meaning it proved that they saw they were wrong and fudged the data and say the reason was an unexpected variable that was already figured in to make the measurement work in the first place. The data would either show a difference in clocks timestamps or not. They even say they had to run it through a computer modeling software to clean up noise that was interfereing with the ability to see the difference between clock A and B. What noise. It was a direct comparison in that this clock says it is a time and that clock says it is b time and see if there are any differences over the 1000 day observation period. This is obviously false and the data showed them that gravity has no effect on time as they hoped. That would mean the first accurate test of the General Relativity theory in 40 years had failed. And that would mean they have been wasting alot of the past hundred years on a concept that failed. They get paid keeping up this irrational theory that is a contradiction of the physics terms and definitions that have been proven accurate. Gravity can't affect light or time, clocks arent affected by gravity or how fast they are moving and light speed is not constant as it is affected by the material it is passing through and interacting with. This theory is bs, the stars are balls of liquid metallic hydrogen and are not giant gas balls with a nuclear furnace at the center. They are built of hydrogen in a lattice structure and are lit with electromagnetic induction. This is reality, not some magical place where massless particles are affected by gravity, which only attracts mass to mass. and why would gravity cause a clock to run any different. It would not and the idea is crap as well as gravity waves. It only attracts, it does not wiggle. It is the same as a magnetic field, it acts continuously and gets stronger the closer the masses get to each other it does not waver or wiggle and it can not affect time or light.
Probably more like billions.
one of the best YT videos ive seen lately
I like how you've visualized elliptical orbit by spinning Earth and oscillating clock. That approach is not obvious, but clearly shows nature of the phenomena
Science: I didn't fail at what I was trying to do, I succeeded at something else entirely, and it was really cool.
I see a new Veritasium video, I run as fast as I can to get
to my computer to watch it :)
For those who stumble upon this comment: *Happy Holidays!
Crucial Muzic happy holidays to you! And this is a delightful comment to read after I stayed up til 4am to launch it.
I totally get you!
Merry Christmas!
@@veritasium Thanks so much! I had to pinch myself a few times to make sure Veritasium really replied
back to me :) You work so hard on these videos, thanks so much for all you do. Love your content
@@NatapixAS Thanks so much! :)
Me too!
Merry Christmas everyone!
I actually saw the launch of Gravity Probe A from Wallops Islanda in June 1976. I didn't understand it properly - I thought it was just about time dilation - but it was really exciting to see the rocket's tail in the night sky from the mid-atlantic.
Hell of an explanation, i enjoyed
Aren't we missing something? Along with the clocks slowing due to the closer approach to the Earths gravity, shouldn't we also consider that the satellites move faster when they are closer to the earth adding to the time dilated even more? ( just as a comet moves faster as it gets closer to the sun.)
Also is the actual telemetry available to the general public?
The dilation due to velocity is well studied so you can subtract that effect out
That is such a typical skype thing when starting a call. "Can you see me?" "Can you hear me?" I laughed so hard at it
idk why, but seeing things like this brings tears to my eyes. It's amazing, THANK YOU ALL!
Right???? So many Veritasium videos make me just tear up because science and math are so cool and derek does such a good job
Amazing video, in clear terms and language so that a working class guy like me can understand. And as a bonus I liked the statement 'so maybe we don't know everything about gravity already'. It is the first scientist I hear say those words, there is still hope for scientists and therefor for the world.
*Merry Christmas to everyone!!!*
_May this Christmas bring happiness in ur life_
You too !!!! Happy 2019
@@tuffyb8375 thankyou! I wish I would get enough Subscribers this new year! And I can continue my hobby! :)
@DBXD I am not Christian !
However I love to celebrate this wonderful festival! But along I continue my Religion too! That is Sikhism!
@DBXD I believe in all god! My religion teaches me to stay in same religion and worship! It's both same!
Believe in almighty one God! The god of all!
If you’re using the frequency of the atom to keep time
Is time being effected by gravity
Or is the atom effected
(Is that a dumb question?)
Nicolas Cacace no valid question
Time is being affected. From the atom’s perspective, nothing has changed, so it will continue to vibrate at its natural frequency. However, because our reference frame is much closer to the earth than the atom’s reference frame, we perceive the frequency to be higher than it really is. Hope this helps :)
Fantastic video! So interesting
Your Channel Is The Best!
I love this mentality that for a real scientist, finding by the experience that a result is predicted and became predictable by a theory is disapointed because you failed to find the issues ou this theory.
Maybe Pecome Belva said "unfortunatly" because this experiment would have make him the one that found the issues to the Einstein general relativity and it would have propulse his career at the top if the tests had shown that it had some but I prefer to think that it was a professionnal scientist that prefer proceeding by elimination than constantly confirming their beliefs
Some House of Cards soundtrack from drama effects. LOL :D :D :D
I thought the track sounded like that, which is why I used it!
lol true .
Great video
Dark Matter is the term we use to label our ignorance of the observations we are currently making.
The rules of GR, as an example, extend all the way to the earth's core. So the time dilation expressed at the surface, versus the sattelite would see similar (albeit greater disparity due to gravity's squared nature) at the center of the earth.
What's really interesting about this is that an object in rotation (like the earth) will have to spin more rapidly at the core than at the surface. This in spite of tremendous friction and all in the vacuum of space. It is what creates our magnetosphere as matter stratifies by density in a gravity well. T his puts all the heavy ferrous metals in the core where they make a magneto as they spin away faster than the rest of the body.
And all without dark matter
7 minutes in to this video and I can't stop laughing because I know there has to be flat earthers watching this video. Must be the density of the clock hahahahahahaha.
"European NASA messed up on purpose to generate fake evidence"
Yep, crazy never sleep! Flefers are ridiculous!
Now, I went from smiling, enjoying the video thinking about the consequence, to laughing manically after I saw your comment.
How do people not find these jokes old?
I'm here as always,
Cool
This was a good one, entertaining science!
Please make a video on tests of GR using the double pulsar and/or the triple pulsar system!
0:34 when your teacher starts a lecture and you are already bored
😂😂😂
@Veritasium; Could you actually fall into a black hole, or would the black hole 'die' before that happens?
So according to general relativity, time 'slows down' in areas with a big gravitational pull (such as black holes).
According to Hawking, black holes lose energy (thus mass) in the form of Hawking radiation but that proces is very slow, 10^70 years lets say (from our perspective).
But since time slows down the closer you are to the center of a black hole, time needed for a blavk hole to 'die' would greatly decrease.
My question is, by the time you get to the point of 'no return' or 'spaghettification' of the original black hole you were falling into, wouldn't that border move further towards the center of the black hole (from Hawking radiation), thus not killing you, and wouldn't this proces continue until the black hole evaporates, making you never able to fall passed a certain point?
Does anyone know anything about this? All the articles about 'falling into a black hole' just say that after you've passed event horizon nothing can escape... I would love to get an answer to this question.
After the zone ur atoms break downs so will not survive a after a point
@@prakash4033 How do you *know*?
Yeah. Interesting question. But unfortunately there can't be a empirical answer. So I wouldn't worry about it. Too much mind-boggling theories versus too little answers.
this video explained something that I had a hard time wrapping my head around. the part about you wouldnt notice the change in time but the clock notices.
the clock doesn't notice either actually. only a difference in two clocks at different heights is noticeable.
Nice video. Please do an update with the Parker Solar Probe team.
Speaking of rockets and clocks... i'm reminded of the HILARIOUS (though likely apocryphal) story of Wernher von Braun during the infancy of U.S. rocket program. Our story begins when a launch is delayed by a malfunction with the countdown time. But first a bit of context: even though it was rarely voiced, Braun was keenly aware of subordinates' discomfort due to his (then still recent) past as an SS Major responsible for overseeing development of Nazi terror weapons. So because of this swastika-clad elephant in the room, it remains unclear whether what follows was a defiant nose-thumbing at his silent critics, or (more likely) a risky attempt to use humor to deflate tension (with perhaps the same odds for success as using a sledgehammer to defuse a time-bomb) ANYWAY... according to accounts, when technicians scrambling to restart the countdown heard the shrill command, "Step aside!", they, as one, withdrew from the control panel, parting for von Braun who made a stiff march forward, halting at the console with a sharp CLICK of his heels, all the while fixing the malfunctioning mechanism with his steely gaze. He then bent slowly at the waist until his eyes were level with the clockworks. Then, (in what some later claimed was a parody of his already pronounced German accent), Dr. von Braun, with a soft, slow, yet unmistakably MENACING tone, addressed the offending timepiece: "You DO know ...don't you? Ve haf vays of making you TOCK!"
Doesn't really sound like him...he was very, very cagey about the past and I imagine it was just something most were smart enough to not bring up.
@@tristanband4003 - You are of course right to doubt the authenticity of the story. Truth is - I made totally made it up. It started out as a kind of shaggy-dog style story to lower the reader's guard to facilitate an ambush with a shamelessly juvenile, stereotype-reliant joke. Somewhere along the way I must've decided to have it both ways and so started crafting it to sound a TINY bit credible even AFTER the "pun"-ishment had been delivered. Sorry - couldn't help it. ;-)
@Kali Southpaw True - explained in my rep;y above to Tristan Band.
Great one!!!
Damned be you for using your wit to clog my mind.
Really, nice one XD
One flaw: there is no "gravitational part" that is distinguishable from the "velocity part". The math works not because the gravitational part can be separated out, it works because the gravitational part (i.e., the whole of general relativity) accounts for all of the effects due to gravity and velocity both.
If you try to do the math separately and combine the results, you'll get the wrong answer, because you double-count the velocity effect. A good example is how to calculate the speed of a clock at the north pole at sea level (closer to earth's center, and no translational velocity) vs the speed of a clock at the equator at sea level (further from the center of the earth, and moving faster). If you do the math separately, you get the result that clock speeds are different. They aren't different. The general relativistic solution is that they are on an equipotential surface (sea level at both locations!) and therefore tick at the exact same rate.
I'm pretty sure that gravitational time dilation and (special relativistic) time dilation due to relative motion are separable and additive effects, for a first order approximation (in weak gravity fields and for non-relativistic motion). The separation may not be possible for an exact calculation but this is rarely needed in practice in weak gravity fields like the Earth's. Also, interestingly, the corrections due to the two effects are of the same order of magnitude for typical non-relativistic motion on the surface of the Earth, such as throwing a tennis ball (with a clock on it because why not), so you need to take both effects into account. I haven't done the math for orbits but I would guess the two effects still result in comparable corrections and both need to be taken into account.
@@Pukkeh the math is wrong. It's completely wrong on it's face.
@@kandysman86 Thanks for that constructive and well supported argument.
@@Pukkeh For a first-order approximation, yes. To verify general relativity to the precision they were, they weren't doing first order approximations. Remember, the radiation of the sun was enough to affect their calculations. Also, yes, the corrections due to the two effects are of the same order of magnitude, but you'll get a wrong answer for any equipotential surface, because they need to be equal, not within an equal order of magnitude. My main point is that it isn't like separating out x and y motion in a typical dynamics problem, where you can have an equation in x and an equation in y and they're completely independent of each other. For general relativity, the velocity and gravitational effects are interdependent, not independent, strictly speaking.
@@Pukkeh it doesn't matter how much empircle evidence proves the nonsense. It is a cult now. No matter how many times you prove you can see the emperor's penise, they just come up with some extra mathamagics to convince you that it's just a 2d line segment.
This is amazing!
this makes it even more important to know how was the thery derived without observations first, its like how can we know about Fire without ever seen some beforehand.
Also how do they know its time dilation but not a centrifugal force effect affecting the clocks at quantum level
And then the ghost of Einstein helped to prove his own theory. THE END.
0:01 weird pronunciation of “Okay”
"Hii"
- Okeh
The Indian OK
Maybe you could in you next video discuss what music actually is why certain tones and sequence of tones are kind to the ear etc etc
HAPPY NEW YEAR TO YOU
I don't get it. As you mentioned, the fast speed actually speeds up time. How did they separate THAT from their measurement of the gravitational effect they were measuring? The video did not explain this at all.
The faster speed would slow the clock relative to an earth-bound observer.
The explanation is at the start, that effect is already widely documented (from all the communication and GPS satellites in circular orbits), and so it is relatively easy to account for. There are (as far as I am aware anyway) no atomic clocks on long term elliptical orbits, which is what they needed to remove the 'noise' from the clocks themselves in order to measure the effect of gravity.
They know how fast its moving so in turn they are able to compensate for how much it would change based on the speed. They can accurately predict how the speed will effect the clock, then you just subtract...
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I got your curiosity ad before your video! 😭 When you realise just how much your life ORBITS around science.. 😅
Yes. Good part. Also, talk about the thinking behind the origins
Dr. Sven Herrmann looks like an old jacksfilms
Steel Wool he looks like a current jacksfilms
Derek's beard is now becoming white
Mahesh Ghorsaine ...its called being grey...not white
@@yogendra1581 I mean he is becoming old.
He was Derek Grey
But now he's Derek White
Relatively
It is almost as if he is aging like a human. Who would have known.