Neil deGrasse Tyson Explains the Tides

A deep dive into the complex, beautiful phenomenon of tides with Neil deGrasse Tyson and Chuck Nice. Get a closer look at brilliant.org/StarTalk where you'll discover more about the gravitational forces that keep our waves rolling.
If you love StarTalk Radio, don't miss out on any StarTalk news. Sign up for our free newsletter: www.startalkradio.net/newslett...
Catch up with StarTalk Radio around the web:
Twitter - / startalkradio
Facebook - / startalk
Instagram - / startalkradio
------
Hosts
Neil deGrasse Tyson, Chuck Nice
Director
Dave Wiskus
Writers
PJ Scott-Blankenship, Josh Silverman
Animation Director
Bård Edlund
Animator
David Powell
Editor
Eric Schneider
Sound Designer
Jay Pellizzi
Music
Airplane Mode
Producers
Amanda McLoughlin, Ben Ratner
StarTalk Radio Executive Producers
Neil deGrasse Tyson, Helen Matsos
StarTalk Radio Producers
Laura Berland, Jeffrey Lee Simons, Lindsey N. Walker, Johnny Bontemps
Brilliant.org Producers
Calvin Lin, Josh Silverman
Support us on Patreon: / startalkradio
Subscribe to StarTalk: kzbin.info...
Follow StarTalk:
Twitter: / startalkradio
Facebook: / startalk
Instagram: / startalkradio
About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#Tides #NeildeGrasseTyson #StarTalk #Science
0:00 - Introduction
0:25 - The biggest misconception about tides
1:14 - How our perception shapes language
1:49 - How the sun and the moon contribute to tidal forces
3:08 - What is syzygy?
3:24 - When do we get the lowest tides?
4:18 - How we get the tides
5:52 - How the moon's influence slows Earth's rotation
8:02 - Does the moon have an influence on human behavior?
9:53 - What happens when you fall into a black hole
11:43 - Sponsored by Brilliant

[@NGC-7635]

“Tides don’t actually come in and out” *10 minutes later* “Rotating cannonball is the best method for jumping into a black hole”

[@snowdrop9810]

First

[@thirtythree5311]

Let's talk about what you have proven. No more hearsay. I'll show you amateur vids of what people have seen. And you send me amature vids if what you have proven.

[@YourMom-vz2qx]

Exactly Why I love science.

[@wiros8101]

Whoa this is so wierd! I'm on a video of Neil degrasse Tyson and your comment is in the comment section about when Peter got a prostate exam from a video I watched right before this one!

[@wiros8101]

It says "they are fucked as a couple"

[@jbaketkd]

I'm 99% convinced at this point that flat earthers are on a global trolling event.

[@christenf1725]

Jacob Thomas It’s like a grass roots movement, but instead of grass they’re weeds.

[@AdriantheSpotter]

I doubt that the FES isn't a troll group.

[@releasemindssecondlast1802]

@@AdriantheSpotter wow acronym they even had cool acronym now , what next holiday ? or lego set ?

[@kierananthony25]

There are flat earth members, all around the globe.

[@Upinthecutty...]

wrong name. if they say the word 'global' out loud, they explode

[@davemiller8203]

I don't care too much about the tides; I want someone to explain Neil deGrasse Tyson.

[@anitaojotoro]

Well, he’s sort of like some mysterious black-hole - A tremendous amount of stuff goes in - but nothing of any use ever comes out.

[@TerryOnDemand]

😩🎯😭🤣

[@anitaojotoro]

@@TerryOnDemand Sorry, I’m struggling to understand what that meant, but I’m glad it ended with a 🤣 I wouldn’t want to think I upset you 😭

[@davidmudry5622]

tides explained by space time...go

[@michael.forkert]

@@anitaojotoro _What comes out of his mouth, should come out of his back orifice._ 😉

[@silentblackhole]

Neil deGrasse Tyson is a one of a kind. He has a brilliant understanding of the world, coupled with an extraordinary ability to explain complex concepts to the layperson. On top of this, we live in an age where information and knowledge can be easily distributed and archived by the internet, allowing future generations to benefit.

[@jex-the-notebook-guy1002]

But we can't use the internet for researching flat earth. bs

[@mikeoath9541]

He is a great educator but a frustrating conversation partner.

[@JamesWoodWorker]

Go ahead and bury your heads. Research Galileos thinking on this. Galileo went against the flat earth powers that be which was the all powerful catholic church at that time. So he really believed in what he was saying. Neil is just going along with the crowd. Obvious wrong information if you know the higher order of math and gravitational force.

[@dynamicgecko1213]

The animations help a tramendous amount on top of Neil's explanation. Thank you, I learned something new :)

[@trilogeee]

Neil really has this amazing ability to make you understand whatever he tells you. On top of that the animations really do help. :)

[@Subfightr]

Yeah it's a great addition

[@vpheonix]

No disrespect to NDT but I prefer this video on the tides. kzbin.info/www/bejne/pqimmZ5qiJ5sn5Y

[@R3_Live]

Unfortunately those animations didn't properly visualize what he was explaining. Water doesn't "rise" off the surface of the planet directly under the sun/moon. It flows towards the sun/moon from the surface that is tangential to the force of external gravity. So if you imagine the Earth as a large circle and the moon as a smaller circle to the right of it, the water isn't "rising" from the side of the Earth closest to the moon. What is happening is that the water from the top and bottom of the Earth circle is flowing in the direction of the moon. And as the water flows that way, it bunches up with more water and more water and more water until the large bulge is formed.

[@sticktotheextreme]

thats not how you use youtube comments, jk glad to see idiocy isnt on all of youtube

[@FutureNow]

People don’t talk enough about Earth’s bulge.

[@Too_Tall_Tales]

Just like mine

[@norricommander]

Meteorologists notice earth's bulge. "OwO, What's this?"

[@OttertheSkysplitter]

Agreed lol

[@Ascalis1]

Is that a gravitationally created bulge or are you just happy to see me? 😉

[@gemstonegynoid7475]

O W O W H A T S T H I S

[@Filiolus]

"I'm gonna jump in cannonball" "I've actually thought of that!" What a fantastic man.

[@stellaglykou6941]

I wish i had a teacher like Neil De Grasse Tyson when i was at school! He explains everything in such a way that it is so easy for someone to understand it. He is amazing!!!!

[@fuglbird]

suppose I was luckier than you in school. My teachers would never stray away from the subject as Tyson does. They would explain tides thoroughly not leaving out the most interesting bits - like the bulge of water on the side of earth facing away from the moon. This is not an explanation. This is an introduction.

[@AB-hi6ru]

I wish everyone had a teacher as good as Neil deGrasse Tyson!

[@drballspain3522]

kzbin.info/www/bejne/pIWydmd3p5V3nNE A B

[@drballspain3522]

A B kzbin.info/www/bejne/qZ3Zg2SHf66joNk

[@drballspain3522]

A B kzbin.info/www/bejne/pIWydmd3p5V3nNE

[@chimchu3232]

He's my hero dude I've learned so much from cosmos and his talks on youtube

[@vpheonix]

No disrespect to NDT but I prefer this video on the tides. kzbin.info/www/bejne/pqimmZ5qiJ5sn5Y

[@nane8375]

I can listen to NDT talk all by himself for hours, but I am super impressed by how much Chuck Nice adds, including breaking it down with catch phrases. Great chemistry.

[@WorkerBeesUnite]

Exactly. A stark contrast between Neil on Joe Rogan and Neil here and I love every second of it

[@i_smoke_ghosts]

omg this was a year ago im so late

[@frowningJoker]

You know it's physics not chemistry, right?

[@0siiris]

@@frowningJoker lol they mean the conversational chemistry between Neil and Chuck Nice.

[@jcmusic7285]

@@frowningJoker Are you serious? Your reading comprehension skills are atrocious.

[@BjarkiHugrakkr]

I love that Neil doesn’t judge as Chuck learns, and is just passionate about explaining things. You can see that Neil is just happy to be sharing the knowledge. I love him.

[@astronomybugs9357]

And I wholeheartedly agree, it’s never wise to be judgmental, but doesn’t that depend on what new knowledge Chuck has acquired from his enthralling conversation with Neil. Can I politely enquire how you now understand the tides?

[@user-eh9cw4jg4h]

Tides are illusion of earth crust thermal expansion causing coastal seabed moving in stable water.

[@ScienceBusted]

Physicists are pig-headed Tides are an artifact of coastlines moving in stable seawater, caused by thermal expansion of the crust caused by moving sunlight. Lunar gravity has nothing to do with anything on Earth. Scientists are dumber than pigs for believing that tides, which move at different speeds and in different directions one to four times a day in different locations and at heights ranging from 3 feet to 50 feet, are caused by the moon's gravity.

[@davidmudry5622]

tides explained by space time...go

[@blondlezar8995]

Tyson's genuine laugh gets me everytime, this man is a well of knowledge and he has so much fun being so.

[@MrMarcusIndia]

While I understand how the bulge can be caused by water on the side of the Earth facing the moon, I've never understood why it also creates a bulge on the other side of the Earth as well. Unfortunately, other than saying that the moon's gravity stretches the water along that axis, this video did not explain it.

[@perseverancerover]

Hello Marcus, I really do feel your frustration, that far-side bump is a real bone of contention amongst scientists. And unfortunately, it isn’t helped by _you-tube,_ who willingly promote the wrong videos, which continue the spread of scientific misinformation and completely poison the waters of curiosity. All I can say to you is this…there are approximately two tides a day on planet earth! - some will say, its the water stretching…others will say, it’s the water being squeezed from the poles, in the form of an anti-gravity effect…and real physicists will tell you, it’s due to the centrifugal effect of the earth in motion around the barycentre. They are all in essence the correct answer, but require further clarification, regarding the finer details of hydrostatic pressure. The one thing we can both categorically say without any doubt whatsoever!! Is that… *“the daily tides are not caused by the earth moving in a straight-line, directly towards the moon, filling up bulges and leaving water behind and then somehow magically stopping”* - because, that is completely ridiculous and contravenes the First Law of Motion. I really hope that eases the frustration, but acknowledgment for my effort in typing would be greatly appreciated. Take care.

[@MrMarcusIndia]

@@perseverancerover Thanks for the explanation about the barycentre. That intuitively makes sense to me, though I wouldn't be capable of working through the maths. I'll check out a few more videos on the topic. Just find it frustrating that Neil deGrasse Tyson skipped over what are arguably the most important aspects like that, and expected us to simply accept "stretchy water". That said, it's fascinating to consider how the effect of the moon, the sun and Earth's own gravity and rotation all factor into what we experience at the beach each day.

[@perseverancerover]

@@MrMarcusIndia Thanks for replying, it’s not often I receive such thoughtful replies. You’re right! Neil deGrasse Tyson is a very frustrating scientist and has unfortunately become more concerned about his own popularity, instead of pursuing the aim to ‘popularise’ science - it happens a lot these days? Water is incapable of “stretching”? He really should leave ocean matters to the oceanographers, they’re the real experts when it comes to tidal complexity. I wouldn’t be too harsh on yourself though, I’m certain with the right guidance, you’d be more than capable of handling the maths behind the simple occurrence of two daily tides. It’s only when we factor in all the other peculiarities, like topography, that it gets really intricate and I don’t profess to know much about that! However, let me leave you with this little thought, as I just thought of it myself - _let me know what you think?_ - If we were able to cocoon ourselves in a protective shell, at the very centre of the earth! Then, we wouldn’t experience any ‘tidal force’ and wouldn’t even be able to demonstrate the existence of ‘gravity’ - because, we would be in free-fall around the barycentre and undergoing the effects of weightlessness! Now, that’s what astrophysicist Tyson should really be mumbling about in this video, instead of going off-script and talking about yoga, black-holes and spaghettification. Good luck and best wishes.

[@adarsh4764]

Because every spheroid object (for example - A rubber band) when stretched from one end it always becomes an ellipse. So it will alawys have a bulge on both sides compared to the previous shape even if you stretched it from one end.

[@riccitension]

@@adarsh4764 This is just a very polite suggestion. Only if you had something to hold the other end in place, and unfortunately there isn’t anything in the universe that can do that? Not even tyson. So, please put your spherical rubber bands down and start thinking critically about the problem. Cheers

[@vitocorleone1462]

If it weren't for the diagram, I would have no clue what he's talking about

[@davidrestrepo1485]

this is more real than the bulge itself

[@helmedon]

Which is why so many Flat Earthers refuse to understand. They would just say "look, CGI again...so fake."

[@calebfavor7686]

These kind of videos are bomb diggity for getting people to open up. Neil was humble as fuck he must be listening to the conspiracy theories as well haha. That's right Neil tell them you have an answer and not necessarily thee answer. That's the most honest thing they've let him say on video lol....

[@sirrupsandwiches1057]

If it wasn’t for this comment I wouldn’t of realized that’s why I understood that entire video

[@alanmonteath9103]

SirrupSandwiches 13

[@CarlosGraOca]

What I love about this, is that Chuck can truly understand Neil, and can provide accurate descriptions to qualify Neil's explanations. What a great pair! ★ *Syzygy* ★

[@ruslankadylak2999]

Synergy.

[@ohtheblah]

Syzygy is 3 or more bodies. Didn't you listen to the video?

[@brandonhopwood3532]

@@ohtheblah we are the 3rd

[@TurusDJava]

OA

[@aaronjabari6895]

And I think that's why Niel always fits best with Chuck as his comedic host. Because he's not just funny but he's scientific understanding funny.

[@kurtnunn6116]

These talks, interlaced with the humor, are really great

[@thefixxer72]

Love you guys man, you make learning so cool and fun. It would be great to have teachers like that.

[@nerrylesjoe8157]

i lost my shit when Neil said " Hello where you go ? " lmao

[@jaimetrevino9244]

Yea I loled

[@WeebAttorney]

Saaaaame

[@druvakumar5383]

You should try your toilet 🙄

[@ZephyrD]

@@druvakumar5383 or rather flush down the toilet 😂

[@n29nick]

Just a theory. Back before we had artificial lighting illuminating our towns, full moons allowed enough illumination for people to go out at night. Meaning more mischievous or unsettling things went on, on nights with a full moon, thus causing the correlation between lunatics and full moons.

[@mukrizhsmukmuk9252]

Ooo... That actually kinda make sense

[@kiirthanjeevan4790]

that makes a lot of sense. because especially back then when people didn't have any efficient means to record incidental evidence, all they do is claim based on what is recorded in their memories. and that defeats the purpose more as memories come with emotional imprints. we only remember or "SEE" what we want to, especially when we are emotionally stressed (any kind of emotion). they get to be up longer in the darker hours of the night and perceive events with psychologically or mentally stained perspective. thus, creating all these stories of dramatic lunacy!! lol; You Sir, should be knighted as Sir Sensalot! xD its a sound and logic inference that we have here because of your intellectual spur. very much making a lot of sense. nice bro

[@NimaLama-xe3lj]

@n29nick Makes sense bt its not a theory its a hypothesis laid out by you or someone else Get it peer reviewed and we’ll work on it later

[@LadyEowyn]

Headcanon accepted

[@Killereggman]

We're on a physics channel, not anthrogenic! :p

[@wavydaveyparker]

Yes mr Tyson, you make a very good point, and as I keep saying, the tides are a natural consequence of inertial motion in a non-uniform gravitational field. They are not solely due to the gravitational differential. In your scenario, with a constant gravitational field, without a gradient, then not only would the earth’s center of mass be “in orbit”, free of any force, moving on a geodesic path around the barycentre of the earth-moon system, but so would all the others parts as well. Therefore, the Earth would not experience any tidal force across its diameter. This is true for all celestial bodies. Inertia has an important part to play in the formation of tides, and it’s not solely due to the inverse square law of gravitational geometry…but, you try telling that to the masses! 👇Take care.

[@jimmason8502]

It’s Dr. Tyson not Mr.

[@wavydaveyparker]

@@jimmason8502 Yep! And it’s an outward acting tide force not earth yoga, dr Mason.

[@wavydaveyparker]

@atavistic_platypus Thanks, but I guess you gotta go with the flow, bro

[@davidmudry5622]

tides explained by space time...go

[@ScienceBusted]

fact killed science Tides in the Bay of Fundy proves all scientists are delusional fact deniers. If tides are caused by moon’s gravity, how can high tide in the eastern Bay of Fundy 50 feet, but only 20 feet in the western Bay of Fundy? In fact, tides are an artifact of the up and down movement of coastlines in a stable ocean, caused by thermal expansion of the earth's crust due to moving sunlight.

[@sinatra314]

Minor correction: Neap tides do not produce the lowest tides. They produce the least extreme tides. The lowest tides, like the highest tides, appear during syzygy.

[@wavydaveyparker]

Actually Sinatra, to be frank, you’re absolutely right, and to be entirely frank, it’s really a “major” correction, not a minor one that’s needed here, because it’s totally out of tune and completely flat. However, mr tyson has no regrets, he doesn’t care, and failed to mention the importance of inertia in his tidal explanation, deciding to leave his audience with the incorrect impression, that the sun pulls one side, and the moon pulls the other. Therefore, we have two high tides a day, and the Earth performing some peculiar stretching and yoga classes. _”There is no big explosion, no tempest in the tea. The world does not stop turning around, there’s no big syzygy.”_ Take care and goodbye my friend. 😂

[@doone8849]

that is not a minor correction

[@alexcwagner]

I think it's pretty easy to get sloppy with the wording when you're speaking off-the-cuff, but I think most people got what he meant. Still, you are technically correct, which, as I learned from Futurama, is the best kind of correct.

[@sinatra314]

@@alexcwagner I agree. It jumped out at me because among boaters “lowest tide” has a very relevant, critical meaning!

[@co_husker3343]

Tide goes in, tide goes out, you can't expla..... oh.

[@wellingtonsmith4998]

damn you beat me to it

[@judokaification]

I clicked on that video expecting that comment!

[@SchiwiM]

Martin Caron you and me both

[@69eddieD]

Therefore, flat earth Jesus.

[@morganprice8247]

How is the moon's gravity stronger than the Earth's?

[@halcyonaut_]

I love that Chuck is what us viewers are thinking and acting like, so it feels like we're actually there when he reacts the way we would've or wish to react then.

[@monkeytime9851]

Chuck plays his role well, and I think after all this time working with Neil, he knows more than he lets on.

[@dulogmaz]

@Science Revolution What xd

[@RIFADOR001]

I disagree so badly...

[@vergilito1]

Your a good loser

[@ScienceBusted]

Physicists are pig-headed Tides are an artifact of coastlines moving in stable seawater, caused by thermal expansion of the crust caused by moving sunlight. Lunar gravity has nothing to do with anything on Earth. Scientists are dumber than pigs for believing that tides, which move at different speeds and in different directions one to four times a day in different locations and at heights ranging from 3 feet to 50 feet, are caused by the moon's gravity.

[@LadyEowyn]

5.5 mins in, and this is already the most educational video I've ever seen on KZbin.

[@peteralleyman1945]

Yet Neil is wrong with his stretching. The correct explanation is on: kzbin.info/www/bejne/pqimmZ5qiJ5sn5Y

[@Pegasus313]

You need to watch more KZbin, lol.

[@FAS1948]

What amazed me when I studied oceanography was the accuracy of tidal predictions, given the number of variables used in the calculation.

[@anitaojotoro]

Couldn’t agree more with you Frank. I guess someone with your knowledgeable background must wince, when you see the those accurate oceanography calculations and hard work conducted by oceanographers around the world, reduced to bulging black-holes and pointless earth yoga. Thanks for brightening my day with your plain taking comment.

[@spongebobspongebob24]

I've never heard the word 'bulge' spoken this much in a safe-for-work video.

[@nancyf.8185]

I thought the exact same thing lol

[@abhijitsaha7204]

A Negative mind though 😏

[@jacobwansleeben3364]

Bulgey wolgey :)

[@Sam-cv5lz]

I dont understand?😕

[@n4gix]

@Science Revolution You are grossly overestimating the force of the gravitational attraction of the moon!

[@humanrightsadvocate]

“Tide goes in, tide goes out. Never a miscommunication. You can’t explain that. You can’t explain why the tide goes in.” - Bill O’Reilly

[@tomitstube]

"alright you pinheads, how'd the moon get there? who put the moon there?" bill o'reilly.

[@raghuatheist4424]

@@tomitstube *there was a object (planet or asteroid) hit the earth a million years ago, then a part of earth and that object was thrown away into the space causing moon. for more information Google it*

[@istvansipos9940]

no, Mr O'Reilly. YOU can't explain that :- )

[@v-giny5507]

but he just did?

[@7quicksilver77]

@K.D.P. Ross Another puzzle solved. How to put the words "true" and "Bill O'Reilly" in the same sentence ? Well done, u get an A :D

[@jermainemurray3545]

Chuck is so smart in his own right!

[@2Manchester]

Neil is 😎, but Chuck is what keep bringing me here..

[@SurlyCurmudgen]

Is there a measurable difference in the height of the tide when all the planets are lined up on the other side of the sun from the Earth?

[@wavydaveyparker]

What a fascinating question. That is going to keep my brain whirring for ages, but are all the other planets ever lined up on the other side of the Sun from Earth? I doubt they orbit like that. They do occasionally all line up on the same side. Anyhow, we could possibly calculate the increased gravitational attraction of your scenario, and I suspect it might make a very slight difference to tide height. However, I don’t think it would be measurable over the normal height difference, because those planets would be an incredibly long way away. What do you think?

[@SurlyCurmudgen]

In addition to the question above how long until the next line up if there ever is a line up?@@wavydaveyparker

[@wavydaveyparker]

@@SurlyCurmudgen On May 19, 2161, all Solar System planets, including the Earth, will gather on one side of the Sun. The planetary alignment will be seen just before dawn. Although, that wasn’t my calculations and I just did a quick internet search 😅 We both probably won’t be around to witness it though. Anyhow, back to your questions…maybe you’d do me the honour of commenting on my cartoon and we can discuss this gravitational pull thing further? Thanks for replying. Kind regards.

[@dwightk.schrute6743]

Send this to Bill O'Reilly immediately.

[@evangrim7267]

Dwight K. Schrute He's too busy living in exile.

[@TwoCraZyEyes0]

Dwight K. Schrute question, what kind of bear is best?

[@TwoCraZyEyes0]

Dwight K. Schrute false, black bear.

[@brendarua01]

Billy-boy wouldn't understand

[@dwightk.schrute6743]

Brenda Rua Probably not

[@christopherdaniel3301]

What did the moon say to the earth? "Is that tidal force or are you just happy to see me?"

[@TCthaCrisis]

Earth throws drink in Moons face and attempts to walk away... But cant, Gravity.

[@syahu8438]

here comes Earth chan and Moon sama fanfics 😴

[@zeliasoblivion4685]

Their names are Tera and Luna thank you very much

[@alexhetherington8028]

The earth said to the moon its high tide you got out of here.

[@milanimorales2645]

Nasty 😏

[@playbassken]

It's always refreshing to hear from such a great mind as Neil deGrasse Tyson. For those who appreciate great science, this has always been an important thing to know for those of us who live near several bodies of water or any large body of water for that matter. Great stuff!

[@hellfirepictures]

His isn't a 'great mind'. He's nothing more than a glorified regurgitator.

[@wavydaveyparker]

@@hellfirepictures What a wonderful little comment. You know, I’d much rather live my life in mystery, than have answers which might be wrong. That was unnecessarily rude of you. Try being a better person. Stay calm my friend.

[@LuckyNikitaBoba]

Jesus Christ! I couldn't visualize this in high school and college UNTIL NOW!

[@thischannelisdead5303]

Earth Water: *B u l g e* Moon: OwO what’s this?

[@Zackie]

This comment been underated for 6 whole months

[@demonking86420]

There it is, the OwO memes

[@william41017]

The earth is just happy to see the moon

[@beatboxlanguage]

...rule 34.

[@alessio7528]

I hate this. take my like.

[@tommyparisi8014]

I just found Star Talk a few days ago, now I might be addicted

[@ammarsiddiqui3602]

Me too

[@mercuryrising9758]

One of the better addiction s to have

[@VERUPPU]

Such a phenomenal video. Thanks Neil and Chuck

[@iwayansuandi]

The music is so relaxing and it makes it more interesting to listen to them talking🙏

[@averagestudent1158]

A true scientist is not defined by his degree but by his attitude towards educating the common people with the scientific wealth he has accumulated.

[@badman3799]

Rohan Gupta accumulated ??? The Scientists have accumulated a compendium of lies. Bullshit. The ones that blindly believe are the common people

[@christianege4989]

@@badman3799 The only one who is bullshit are your assumptions. Scientists have accumulated a great amount of knowledge. Stop denying the reality and start educating yourself about the scientific facts and knowledge they have made.

[@akileshroopun8176]

@@christianege4989 totally agree with you these people know nothing about science and say that it is false thy are disgusting

[@Rishiraj87]

@@badman3799 would be great if you can share some examples of the alleged lies.

[@carso1500]

@@Rishiraj87 they can't because every time the try they get quickly throw down because their assumptions don't hold any water

[@sanoth6091]

I love how you included the viewers into the science by letting us be the moon!

[@renko9067]

Came here wanting to learn about laundry detergent.

[@PedroAmA]

This episode format was amazing

[@antoniomontana5778]

Neil deGrasse Tyson Is excellent at explaining science!!! I'll just need to watch this video 10 more times and I'll have it down, no problem!!!

[@Luna_Spiritus]

It's gonna take me at least twice that.

[@chetanmestri906]

exactly what I wanted to say..😂

[@ismaelbravo3571]

Anonymous well , at least there’s hope.

[@levonsahakian6723]

Only his explanation is soooo wrong. Tides don't work like that

[@Jy-xq2ew]

Yeah . he's a great entertainer .. Great story teller.. Just the man for the job

[@H4WK6969]

'Tide goes in, tide goes out. You cant explain that.' - Bill O'Reilly

[@skunk12]

H4WK69 can someone please edit a clip of bill o'reiley saying "The tide goes in... the tide goes out and YOU cant explain that" before each point that NDT makes? Lol

[@LeighDWYC]

Bill O’Reilly is a dick

[@skunk12]

@Science Revolution Thank you for your comment, but i never said anything about bulge. Your comment may be correct. Mine was about addressing O'Reilly's appeal to ignorance. 🙂👍 Learning HOW to think is very important and most never bother to try.

[@Chet_Brinkley]

I have learned SO much, thank you. I have laughed more than I have in a long while, thanks !

[@scottt3491]

Loving this channel.

[@KrisBendix]

A romantic sunset can end in a different bulge.

[@davidLikeyVids]

This is like a reddit comment, as is my reply of "take my upvote" :)

[@mosaic617]

Kris Bendix boner

[@z.deutch1334]

And after that bulge, a few months later it's a different kind of bulge showing

[@GreggB25]

BOING!

[@joshuaspell3611]

We r here 4 science nigga

[@vitocorleone1462]

Neil is such a dad

[@axegod8613]

John Smith just thinking the same. ..i probably wouldn't be a Harvard dropout if he were my dad lol

[@kevingrove4379]

John Smith Neil is a fruad

[@alainmaitre2069]

Axe God , why are you god ?

[@alainmaitre2069]

Kevin Grove . What is a fruad ?

[@kevingrove4379]

Alain Maitre kinda like a fraud but works for communists

[@royharkins7066]

Thank you u2, I’m SO so clear on tides now, I love the way you teach and make us laugh 😂

[@gex6095]

Wow my mind is truly blown 🤯🤓🤯 thank you guys its truly amazing to be able to just sit and listen to you two wish i could do it in person

[@ahmad909khan8]

Chuck is just too Nice

[@PolyMatter]

Wow, my favorite episode so far!

[@viharcontractor1679]

PolyMatter Wow didn't expect to see you here! love your vids!

[@37beers58]

Water tower was better.

[@levonsahakian6723]

Unfortunately his explanation is wrong!

[@user-eh9cw4jg4h]

Tides are illusion of earth crust thermal expansion causing coastal seabed moving in stable water.

[@michael.forkert]

_Yesssss. Wow, wow, wow._

[@kandaveld1]

Thank you so much! I learnt exactly what tides are. Thanks Dr. Neil and my favorite Chuck, your in between comedy is amazing. Great combination. Once again thanks Sir Neil for everything you do for this community

[@lanap6557]

This was the awesomest duo to exist in a KZbin video

[@josiahmiles5516]

That man Neil just kept on high-jacking the convo 😭 guy on the right is just tryna get a word out and Neil's instantly slapping his arm with a "Now watch this," 😂😂😂 this made it so much better

[@paolodelmonte5773]

I like how at 5.55 Neil acts like a magician. He says, “ok, now watch!” as he proceeds to pull up his sleeves.

[@skylernorwood9526]

This might be my favorite informative video of all time

[@sherrylennondewitt4102]

I'm so glad I spent this night with you both! I need a vacation

[@sagax5908]

Honestly, Chuck Nice is so funny, and Neil is SO smart and SUCH an amazing public speaker. NDT is poetic in everything he does. I’m an Astrophysics student, and everyday, in everything I do, I think about Neil and how he would approach things. I feel so honoured to be able to follow your journey guys. THANK YOU.

[@Kampsy]

7:57 Neil: “the moon has been slowing us down ever since [its existence]” Guy: “Or the earth’s just getting really tired” Lmao I kinda like this guy

[@jonathon9407]

That was a jab at Aristotles theory of why objects slow down, which isn’t inaccurate it’s just poorly worded

[@chrisstory8803]

Dummy !

[@hewchardon]

He's a comedian.

[@ryanjohn2116]

His name is Chuck Nice, it comes up at the start of the video lol

[@MR_POPSICLES]

Neil: "if the moon effects the werter and the werters made of werter and were mostly werter doesnt the moon effect us"

[@MiguelRodriguez2010]

My brain tickled 🧠 thanks StarTalk!

[@noonenobody4206]

This is a legendary video in terms of educational value AND entertainment.

[@kimberleygagliardi6027]

‘EARTH YOGA’ I can’t 😂 Neil is excellent at explaining things, which is not as easy as it seems.

[@jrk1990]

So is it like the sun and moon playing tug of war? Lol

[@ShumylKamran]

John Kimbrough tug of *water

[@diannagracelaurian4052]

... and the moon is so strong to compete tug of war with the sun???

[@rottdad775]

@@diannagracelaurian4052 when it is much closer, yes. The gravitational pull is amplified by distance

[@adoyaben]

@@diannagracelaurian4052 yes because it's very close in comparison

[@diannagracelaurian4052]

@@rottdad775 @adobenchaa Thanks! That's amazing!

[@brettweary8491]

Absolutely Awesome Video Guys

[@derfmode]

I find myself back at this channel constantly. These guys have such a great format and chemistry going.. it makes for the perfect learning environment. “Earth Yoga” 😂

[@davidmudry5622]

If gravity is the curvature of space-time, then is it the change in this curvature that accounts for the two high tides on opposite sides of the earth? Teachers keep saying the "Pulling Down" of gravity on the earth is weaker on both sides where there is a high tide, but in other videos some say gravity is space-time and is not a force that pulls? kzbin.info/www/bejne/joPVYp6XjbB1qbc

[@will2-b150]

You’re wrong Mr Tyson. Momma says, the tide comes in to gather up all your troubles and then goes back out to take all those troubles away. - Bobby B.

[@Sinnbad21]

Will 2-B No Colonel Sanders! You’re wrong!!!!

[@velvet2406]

Some people don’t like their beliefs to be challenged .....they want to hold on to what was passed down to them even if it is not accurate...usually from family...teachers...culture...ect...even religion....they don’t want to grow mentally.

[@Sinnbad21]

Velvet Pillows You know the guy was quoting a movie and just kidding about Tyson being wrong, right? Lol

[@WorkerBeesUnite]

@@Sinnbad21 lmao it just made it funnier

[@jusbeeb4416]

The moon is the devil

[@Luna_Spiritus]

My brain simplified the forces of the moon and the sun on the earth as two children fighting over a water balloon with a rock inside. You broke me.

[@thelight288]

@Science Revolution the earths Gravity on the water is way greater, the moon and sun can only bend OR stretch it

[@Brandi.Nicole]

Cool. Did I get this right? And how would you write this in astronomical terms? Tidal Bulge is due to moon and sun influence. (Equation at different seasons?) Tidal bulge slows down the rotation of the earth. (Evidence through sea Mollusks, cycling) Earth is slowing and has been slowing down over time as evident from the cycling in sea mollusks. So…what is slowing us down? How does this influence earths axis? Can a slower speed change degree at axis? If so what happens? Will the moon influence us differently if our axis is different? 30, 45 or even 60 degrees!? Could it happen in a short time period - like the big whack? 😎 Will that influence speed of rotation considering tidal waves 🌊 are influenced? Why does speed of rotation matter the most? Can humans cause damage enough to harm our tilt or speed of rotation? What about space trash? Does it affect the gravitational pull? 😅 thanks - to anyone. New to this and have soo many questions!!

[@cybermonkeys]

That is a very interesting and questionable comment Brandi? :) And, you sort of answered your first question yourself really! Its the bulge that slows down the rotation - it requires a lot of energy to move all that water about and that energy must come from somewhere? And, it comes from the rotational energy of the spinning and motion of the Earth and Moon around their common centre of mass! That’s why it… ? …Maybe you’d like to laugh at my video first, before we continue with the answers there? Take care.

[@Brandi.Nicole]

@@cybermonkeys I watched another 5 hours of content, read multiple papers on the Big Bang and how the study the cosmic background radiation is answering some of these questions AND even read up on new technology developed for the scopes in the last 2 weeks! I think I answered most of my hypothetical questions that way. I also attended a couple lectures. Still stuck on dark matter. I just can’t wrap my head around it. One thing I won’t ever do again is try to figure out how specific formulas were formed - 😅 oh man! That is nuts! I have to admit I think I’m in love with these topics. I even cried when I saw the data based image of the black hole! That’s weird right? It was just beautiful.

[@cybermonkeys]

@@Brandi.Nicole Oh my word! I’m so thoroughly impressed with your passion for the topics! Anyone, whose reduced to tears, after viewing the ‘stunning’ and ‘beautiful’ black-hole radio-image taken by ‘Event Horizon’ is definitely someone worth talking too!! 😎 Can I politely ask you to look up a video called, ‘the unexplained ocean tides’ because they like talking about this stuff there! I think it was swallowed by a black-hole recently and no one is watching? In the meantime here’s something kzbin.info/www/bejne/mYPQk6qZr7l2bKc that says everything about the beauty of the world around us! And, I’d also like to say that you have an uncanny ability of being very accurate with your comments, _‘Still stuck on dark matter. I just can’t wrap my head around it’_ was actually very insightful and close to the truth? Kind regards.

[@cybermonkeys]

@@Brandi.Nicole That is an absolutely fantastic reply again Brandi and may I say that you don’t sound silly in the slightest! 😇 No one said science was easy and explaining it in text is even harder - i guess 😁 Anyway, before I attempt to answer some of your brilliant questions, can I ask which topic we’re still talking about here please? - tides or dark matter? because the two aren’t really the same! 😅 However, in the meantime let me leave you with this! The scientist who discovered the discrepancy between orbital speed and gravity was Vera Rubin 🤘- At a young age, Vera Rubin was fascinated by the stars, watching the night sky revolve from her north-facing bedroom in Washington. And in the process, became the mother of dark matter! 😂 take care. Did you watch the video? 😅

[@Brandi.Nicole]

@@cybermonkeys yes

[@pushing2throttles]

This is my favorite KZbin channel. It's like taking Dr. Tyson's classes without having to pay tuition. I learn about the universe but I also am learning how to learn better.

[@erichbachman7363]

11:00: Best finger demonstration i've ever seen of "two snapping into new two's"!

[@criticalsession]

These videos make my day when I see them pop up in my subscriptions list.

[@jtstearns3373]

yeah very true

[@dwiskuspersonal]

Amante Reale Me too.

[@thevitruvianman9781]

Amante Reale I concur!

[@pierreluc5382]

Geeks

[@prasiddhi15]

I learnt so many something things from this video today - Including there are mollusks down there has physical feature to attract to the phases of the moon 🌙

[@omart643]

Loved this video

[@theabyss4127]

Always excited to hear Neil deGrasse Tyson explain things, he always does it so well.

[@dillonqaphsiel7977]

When they’re both on the edge of their seats talking about tidal forces.

[@badman3799]

Dillon Qaphsiel edge of their seats and so wrong. Lol, “educated fools” (Bob Marley)

[@siriplaydopethrone8973]

@@badman3799 wtf why do you think they are wrong?

[@badman3799]

Over Thedge Its not that i ‘think’ they’re wrong. Its not an opinion. Ive done my own research and experiments. The moon will be overhead and the tide will be at its lowest... No gravitational influence there! Observeable all over the earth to those that do more than believe what they hear. Youll see, next time this occurs where you are. Question: Do you ‘think’ they’re right??

[@braddeveau2413]

Must be all that bulge talk

[@juliephillips7381]

My brain simplified the forces of the moon and the sun on the earth as two children fighting over a water balloon with a rock inside. You broke me.

[@Jahzwolf1955]

Wow these guys are amazing I learn so much from them thank you ❤

[@clivekennett]

Absolutely brilliant!

[@gregolejniczak5631]

Love these shows! Keep them coming guys, great work!

[@fpdima]

I recently took up sailing as a hobby, so I needed a good understanding of tidal change and causes. This is by far the best explanation of tides I ever saw, heard or read. Thanks for the education guys.

[@tentimestoday1704]

If they would have shown these videos in high school, I might have payed more attention. I've learned more from this channel in 2 months, than I did in school, for 13 years.

[@alberttillman8017]

Enjoyed this, I like listening to Neil. I learn something new every time.

[@BuyBBStonk]

The moon has been slowing down Earth's rotation over time, but has also been progressively moving away from Earth, and therefore exerting less force to slow us down... so my question is how do you get a girlfriend?

[@patocamarada]

I'm just going to watch this about 8 more times to digest it. Yep.

[@C4...]

You don't. You live a lonely life, well at least i do.

[@TeamLegacyFTW]

You go Glenn Coco

[@jeanemare4116]

Say to a girl: Hey would you like to go and watch the angular momentum of the earth causing the sun to disappear behind the horizon?

[@lowkey2923]

Moon her.

[@madrox8]

"I feel the extra tidal force from the moon" ill now say "I think my sun has something to say to you"

[@just.off.the.a4208]

This episode was so much more interesting than I anticipated

[@PhilthyWan]

omg...I love this man. He is intelligent beyond my comprehension and yet he can explain his view of the universe in a way that I can understand.

[@davidmudry5622]

If gravity is the curvature of space-time, then is it the change in this curvature that accounts for the two high tides on opposite sides of the earth? Teachers keep saying the "Pulling Down" of gravity on the earth is weaker on both sides where there is a high tide, but in other videos some say gravity is space-time and is not a force that pulls? kzbin.info/www/bejne/joPVYp6XjbB1qbc

[@shadowpulse4022]

Imma be honest the best part of this. is how much fun they're having explaining these concepts. like its science but its fun and I think thats great.

[@carlwillis7846]

Not only is Neil's knowledge totally unbelievable it's how passionately he delivers it that blows my mind. He adores what he does and it's amazing to watch.

[@badman3799]

Carl Willis the man is full of shit. Im sorry im calling bullshit on this so late

[@ErikBongers]

This is the most intuitive explanation of tides I have ever heard.

[@gravitron12]

I swear these two can talk about paint drying and it would be awesome to listen to. I love the way they interact and explain things.

[@knoetsch13]

I love that they actually call it "Spaghettification". xD

[@airhead3571]

This just changed my entire perspective on the show Avatar the last airbender

[@etieti349]

Lol

[@diegotr1903]

Internet and Neil are here for that. Information at a click.

[@franklindanso2387]

I LOVE THESE GUYS....I LOVE THIS CHANNEL

[@BruinChang]

This talk really indicates the difference between correlation and causality.

[@TheAsem1992]

1:34 chuck is hilarious lol , both neil and chuck together make the video very entertaining to watch .

[@Goreuncle]

+asem al balawe Are you kidding? Chuck is the equivalent of Jar Jar Binks... tries to be funny but ruins it instead.

[@TheAsem1992]

Goreuncle scientific subjects are not the best material for comedy .. he's working with what he got lol

[@TheeFlashbackMan]

I love how he little taps him to explain something

[@TheCrimeChronicles]

Love these two

[@benreform3357]

Absolutely beautiful Neil! Hats off again and again

[@davidmudry5622]

If gravity is the curvature of space-time, then is it the change in this curvature that accounts for the two high tides on opposite sides of the earth? Teachers keep saying the "Pulling Down" of gravity on the earth is weaker on both sides where there is a high tide, but in other videos some say gravity is space-time and is not a force that pulls? kzbin.info/www/bejne/joPVYp6XjbB1qbc

[@marsbase3729]

will someone please share this video with Bill O'Reilly?

[@ScienceNowSN]

who's that arrogant person?

[@Alchemistic88]

Can we all take a second and appreciate/contemplate how amazing gravity is 🤯 Just the idea that mass alone can exert such a force. It's straight up magical and we all just take it for granted.

[@I.OWN.NOTHING]

Not magical cause it happens like all the time and always has

[@JasonWW2000]

We take magnets for granted as well. They have invisible forces that we see the effect of. It's magical as well, but we get used to it and it's not thought of much.

[@I.OWN.NOTHING]

JasonWW2000 not magical

[@JasonWW2000]

@@I.OWN.NOTHING Why do you say that? Have you never seen the expression of a child who sees magnets do sonething bizarre for the first time? It's magical. :-)

[@escoworld]

love these two

[@assabetmetalfabrication6143]

Excellent talk funny at times science and informative loved it Thanks PS great sense of humor