How Do Tides Occur? Low tide, High Tide, Spring Tide, Neap Tide
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- Опубліковано 28 вер 2021
- How Do Tides Occur? Low tide, High Tide, Spring Tide, Neap Tide
• How Do Tides Occur? Lo...
Tides are very long waves that move across the oceans. They are caused by the gravitational forces exerted on the earth by the moon, and to a lesser extent, the sun. Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth.
To understand the tides it is easiest to start with the effect of the Moon on Earth. As the Moon revolves around our planet, its gravity pulls Earth toward it.
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Congratulations! Bright Side Science 👍🥳 100k views for a splendid little video, is a marvellous achievement for such a small, but growing educational channel.
Unfortunately, I did lose some brain-cells watching this, but that’s just the natural occurrence of me getting older. 😌 And, is in no way a reflection on your excellent little video. Well done. 👏
Hi again, this really is a nicely made video and I appreciate the hearted comment you gave me. Thank you very much. In my opinion, it rightly deserves the attention and credit it’s presently receiving, but can I ask a polite question please…where is the mention of the *Barycenter* in your video? …because, without it, you would have no centrifugal effect on the far-side of the Earth, to cause that second tide.
Thanks for your comment. I will definitely do a video about Barycenter.
@@brightsidescience Hey, you really are a bright side of science and very generous with the hearted comments. Thank you kindly. If you need any help with the ‘math’ to find the barycentre location, then I’d be more than willing to help? but, I guess you’re too bright to need me…anyway, Happy Diwali to you. 🥳
It looks like pulling ...but it's just increasing the weight of the air. Making more water.
Short and crisp .... Perfect!
This is a amazing video thanks
Appreciate your work😊
This is an interesting video. Thanks
Thank you so mucj! This helped me pass a test!
Thank you this helped me for my science test and your explanation is really understandable once again thanks! 😁😊
thanks for this amazing explaination !!
Amazing👍.. Ur new subscriber😄😄
Nice 👍👍
Best explanation!!❤
Oh thank you for such helpful video.. now i understood my lesson
Thank you so much didn't have time before exams 😊❤️
Happy to help!
The basic reason given for the tides in this video are correct. The facts are correct and the explanation is true. The tides are essentially caused by the inertial motion of planets and oceans around a common centre of gravity, in a non-uniform gravitational field.
I see no reason to mention the overly complicated SpaceTime extravaganza here, as it only deals with a misleading static scenario of tidal forces, and uses ideas which technically only exist in a relativistic view of reality. It makes no mention of the tidal effects produced by the orbital motion around the sun. Unlike this video which uses real science to give an amazingly simple explanation of tides, using the Newtonian model of gravity. Congratulations once again. Well done.
Thanks I really understand
I understand very clearly
You nailed it
Really helpful and very nice sharing to us. I was searching for this... this kind of explanation..... Thanks a lot ❤😊
congs
Damn,,,,,,better than my history teacher..... idk why you ar not famous.....ngl you deserve more..much more❤❤❤...Thanks
Thank you! 😃
I love it
good explanation
We are bombarded in theory of relativity that Gravity is not a force. Then how can moon or sun exert gravitational "pull" on sea water on earth?
No straight line acceleration in space. The tidal force is not a pulling force, it’s a pushing force, outward from the centre of the earth in the case of the sun and moon, or for the example of an object in rapid orbital _inertial_ motion around a black hole. As illustrated in this correct tidal explanation.
The gravitational and centrifugal effects of motion around a common centre of mass, both contribute to the tidal force envelope in a Newtonian model of gravity. It which gravity and centrifugal, can both be considered as forces in a classical interpretation of Physics.
Was that helpful in any way? Thanks
@@cybermonkeys : Thank you for the pains taken and for your time to explain. Let me be honest that I could understand a little . The blame rests with my limited brain!
@@kmrao8528 On the contrary, that's just not true - You're brain is perfectly fine! You recognised and identified a fundamental question in Physics, which has confounded many great minds since Newton. Even Mr Einstein himself had immense difficulty finding a correct solution. So, you're in very good company - Keep going!
The only failing here, was that my dumb little brain wasn't able to explain it to you better. If you can find my friend @wavydaveyparker cartoon, then maybe we can work through it together?
Good luck and happy new year.
Question if the moon is facing one side of the earth causing that part if earth to have high tides would that mean the part the moon is not facing is experiencing low tides?
Hello Tjdr, if bright side science will kindly allow? I’d like to attempt an answer to your interesting question. If the moon is facing one side of the Earth, causing that part of the Earth to experience a high tide. Then the side facing away from the moon would also be experiencing a high tide, due to the centrifugal effect mentioned in the video. If you have any further questions, then can I politely ask you to find my daft little video and we can discuss it there? Thank you.
About to givE SSC boards last exam of finishing highschool, and iam watching this. Thank you for the instant help😂
All the best
THIS REALLY HELP ME❤💖
can this explain earthquakes? the Dutch scientist who predicted Turkey's earthquake basically saying it's all about planet's and gravity.
Yeah some studies suggest the same. Few years ago a Japanese research team found that large earthquakes are more likely to occur at times of a full or new Moon.
@@brightsidescience You’re correct again bright side, and that’s because at times of full and new moon the gravitational and centrifugal effects aren’t constant, and the Earth flexes slightly to compensate, which sadly leads to the tragic earth quaking events in Turkey and Japan. All the more reason to cherish our precious planet, and to look after it! Take care.
Thanks
cool
wlcm dear
Easy to understand
Hii
❤❤❤❤❤❤
I have one question is there centrifugal force exist on low tide area ?
Hello Nayhan, I have an answer for you. The centrifugal force is the same across the whole planet, because the centrifugal force is opposite to the gravitational force, which is why we have a high tide on the side facing the moon, and also a high tide on the side facing away from the moon. These two effects are not present in the low tide areas, which is why we have low tides there. Was that helpful in any way ?
@@wavydaveyparker I know directions of the gravitational force and the centrifugal force are opposite to each other . But if the high tide occurs on moon facing surface of the earth it also occurs on opposite side of the earth i.e.side opposite to the moon . Shape of earth is spherical then how it is possible that at the opposite side the gravitational pull of the moon affects on the high tide. I think the situation is same on the opposite side of the earth (far away from the moon) where high tide occurs and on the low tide areas .
@@nayanmohiteclasses484 That is a really intriguing comment. Thank you so much for replying. I have discussed this dilemma in the tidal analysis on my own cartoon if you’d be kind enough to comment there. However, in short, the high tide closer to the moon is caused by gravity. The high tide further from the moon is caused by centrifugal force. And at right angles to the moon it is low tide. Think of it like this: gravity pulls with 30, 20, 10 across the earth. And, centrifugal pushes with (minus) 20 in the opposite direction. Therefore, when we do the calculations we get +10, 0, -10 across the earth, in line with the moon. Did that explain it any better ?
You are better than my actual teacher Nicceee!!‽
Nice Voice too
Thank you
@@bhanopersaud1984 Hello Bhano, I get the distinct impression that the wonderful teacher here, is behaving rather modestly towards your nice comment. Can I just politely suggest on their behalf, that you also view their video on the barycenter as well, because that will complete your ideal picture of our daily tides. Good luck.
Today ive visit for the first time the ocean and I was very interested in why the tides happen.
How come it doest happen on big lakes?
its cause the area isnt as wide
because lakes are not deep enough and isolated, instead of 3,000 meters deep and connected to the seas all over the world. Water in lakes do move very slightly up and down as the hours pass, for other reasons that also affect tides like wind speed and directions, temperature changes and different atmospheric pressures but not because the moon and the sun gravity.
oh god it's so easy to understand
You would think so, but once we understood the significance of the *barycenter,* then our understanding became clear.
_"The only incomprehensible thing about the universe, is that it is comprehensible"_ ~ Albert Einstein.
Well done bonbonbon! 😁
If you put a large object that has a special property. Meaning this object can absorb the gravitational field from the Moon. Put it between the Earth and Moon. Can this change the tide and the rise of the ocean? Just curious.
Yes. And it would be a catastrophe, but would also change our world forever in some incredibly interesting ways.
@@brightsidescience I said that because there is an idea China wanted to build in space. A big round blinder that will reduce the heating of the Earth. One of the things Biden was talking to China about. My thoughts are what is the "tides wave change" if they build that thing?
Never heard about that actually! Is that possible?
Please excuse my interruption, but I found this discussion very interesting. The earth-moon system is one big balancing act between ‘gravity’ and ‘centrifugal’ effects, around a barycentre, as illustrated in the video. If it were even possible to introduce another massive object into the system, then obviously the whole system would need to rearrange itself to maintain a balance. If we got our calculations wrong, then the results would be catastrophic for both us and the tides. Stay safe.
If moon's gravitational pulls create high tide then whowould fill space might occur due to tide
Fine
What is different between spring tide and high tide
That is a very good question, and I'd like to attempt a very simple answer for you, which hopefully you'll let me know whether it's good enough or not?
Roughly speaking there are two high tides a day, caused by the moon. However, when the sun and moon are roughly aligned, during a new or full moon, which occurs once a month, then those high tides will be slightly higher, and we happen to call them spring tides.
I hope that was helpful, but it's quite difficult to illustrate, without a diagram. Good luck.
@@wavydaveyparkerquit posting your flat earth nonsense as being valid science. The tides are not caused by the moon but by the earth's motion around the sun.
The earth, spinning on its axis as it orbits around the sun creates a clockwise acceleration event and then a counterclockwise acceleration event. High tide is caused by the earth reaching maximum velocity it orbits the sun in an elliptical path according to Kepler's laws of motion. This event occurs the first of the year when the planet is closest to the sun with High tide on the OPPOSITE side due it experiencing a higher rate of acceleration at that point.
Newton's and Kepler's Laws of Motion are what describes the tides. Not your junk flat earth science.
What is the meaning of the orbit
Hello Deepa, An orbit is the curved path taken by a celestial body in motion around a planet, or moon, or in this case the barycentre. The person behind Bright Side Science chose to leave the details behind the meaning of this for simplicity, but I hope it didn’t spoil your enjoyment of this wonderful little presentation. You’re more than welcome to comment on my cartoon if you require further clarification. Take care.
Excellent explanation. The centrifugal force really explained the opposite high tide. I often flew a model plane with a string and know what you are talking about.
Excellent comment. Was this model plane you flew with string power driven, or did you initially have to throw it in the air?
@@wavydaveyparker Twirl it with a rope over and over. The plane has a a couple of propellors that turned in the wind. It was fun to play with.
@@richardcarlin1332 Yep! Thanks for replying Richard, and I remember having something similar as well, and it was a lot of fun…but, the point I was trying to make was that if you let go of the string, then the plane would fly-off in a straight line - That’s called, inertia. To truly understand the centrifugal force, we have to imagine standing at the barycentre, and twirling the earth and moon around our heads on a piece of string called, gravity. Although, I guess you knew that already? Take care my fellow plane twirler. 🙂
Centrifugal force is an apparent phenomenon that doesn't really exist. For a more scientific, accurate explanation of the tides, see ua-cam.com/video/pwChk4S99i4/v-deo.html
The Gravitational force is an apparent phenomenon that doesn’t really exist. For a more scientific and accurate explanation of tidal forces, see Einstein, and take a course in General Relativity.
On full moon side that is earth is b/w sun and moon why does the sun don't diminish the effect of moon as gravitational forces of sun and moon will act opposite?
Good question. The tides are not solely due to the gravitational attractions. The sun, earth and moon are not static in space. There is an opposing centrifugal effect of Inertia, which enables them to maintain their orbits around their respective barycentres. When you do the correct calculations, you’ll find that the sun and moon both cause a tide on the near and far side of the earth, and during a full moon, these effects will combine to produce a spring tide. My only advice to you is to consult with a qualified oceanographer, as they know a lot about the behaviour of the oceans, or watch this video again, as it’s a very good introduction to understanding tides. Good luck.
The centrifugal effect is mentioned everywhere but noone mentions what causes centrifugal force?
Earth's rotation?
If that is true are we taking earth as non inertial frame of reference?
We could also haven taken the same for wind circulation?
@@ansh2938 Hello Ansh, that is an excellent response and thank you kindly for replying. I’ve actually spent a considerable amount of time discussing these problems on my cartoon, regarding the peculiar effects of inertial motion, so I’d be more than happy to continue our discussion there, if you’d like?
Anyway, in short, you’re correct…there is a centrifugal effect due to the earth’s axial rotation, but the earth is also in a revolving orbital motion around a barycentre, and it is this motion that has the more significant effect on tidal formation, but more importantly, it has allowed the earth-moon system to remain balanced and stable for millions of years. If you orbit over to my comment section, then I’ll be able to give you directions to more detailed articles, which might help you gain a better understanding of Inertia and the complexity of tides. Thanks
@@wavydaveyparker yeah sure
@@ansh2938 Not a problem, I look forward to continuing our polite conversation. The wind circulation effect you mentioned, is due to another complicating factor called, the coriolis effect, and it also has an effect on the cycle of tides, but hardly anyone ever mentions it? It’s best to try and keep things simple, which is why this nice video is successful.
Why is coffee drink not changed?
did u use canva for the thumbnail?
Yes
@@brightsidescience Your channel inspired me to create it
It is the Slinger motion, caused by the slightly deformation
of Earths round shape, as cause the tide waves.
Moon just follow the slinger course.
Try to improve your explanation and make it more understandable u know
It can be very confusing for kids
@@vangasrivani4269 Hello again Vanga, can I politely ask you how we could improve this explanation so it's more understandable to kids please. As I'd really like to hear your ideas, as I'm thinking of making a simple video, that is easier to understand and your input would be very helpful. Thanks
But if moon has gravitational pull then why astronaut floats in air.
Hello Wali Shalu Ph.D 😂, I realise this isn’t my video, and apologise to Bright Side Science for answering some questions, but I really enjoy the challenge, and like helping people to understand Physics.
The moon does have a gravitational pull, but it’s only one-sixth of the pull on the surface of the earth. That’s why astronauts on the surface of the moon appear to float in the air, when they jump, they go higher, but still come down again onto the moon’s surface.
@@wavydaveyparker okay. Thanku
@@shalu2insta You are very welcome. It was an excellent question though, and the key to understanding science is about asking questions, how else will we find the answers? Maybe we can think of the oceans, like astronauts jumping on the surface of the earth, towards and away from the moon. They go “up” very slightly, during high tides, but always come down again, during low tides. What do you think?
Just a quick question, I don't mean to be dis-respectable or anything but how could the moon, whose gravity is so much weaker than that of the Earth that even people who had been on the moon could barely walk on it have the ability to pull an entire ocean towards it?
Gravitational force is the product of the two masses, divided by the distance between them
squared.
So the Moon has very little gravity for a human-sized object standing on it's surface.
The entire ocean of the Earth is much larger than a human, so the gravitational force exerted by the Moon on the Earth's ocean is much larger, even though it's farther away.
That was a very good answer to the question posed by Miriam. Thank you. However, may I politely suggest a slight addition?
To make the correct science ‘model’ depicted in your video work, we have to imagine that the Earth’s centre is being held ‘stationary’ in space by the combination of ‘centrifugal’ and ‘centripetal’ effects. Then the ocean water can ‘appear’ to be slightly ‘lifted’ on the side closer to the moon and slightly ‘lifted’ outwards on the side further from the moon. So, how does physics temporarily make the Earth appear to remain static?
Kind regards, wavy.
Hi. that's a really good question. The moon doesn't pull up on trillions of tons of water, the small change in gravity allows earth to pull down more at the poles with forces perpendicular to the moons gravity (simple explanation) and squeezes the oceans to create a bulge, one either side, two, not one, which would be the case if the moon "pulled", which it doesn't or we would be in so much trouble that by the time you read this, well, there would be that time left. Also the sun accounts for about 1/3 of the tides, for the same reason. Also, and without being disrespectful to the video (I'm about too). The moon is not in a polar orbit as depicted throughout the video and the bulge is not the highest at the poles? In fact the moon cannot be seen from the poles for like two weeks a month? Part of my job is technical editing. If you're in an exam, don't draw it like that :-) It's 90 degrees wrong. The earth and moon are a binary system, the moon makes us wobble side to side, so every day we are pushed 3000km one way and then 3000km back? Do you feel that?
Hello, let’s try and keep this amicable shall we, I’m not going to enter into a lengthy discussion with you, bestowing the virtues of Einstein over Newton here, out of common courtesy to “Bright Side Science,” who has produced a beautifully simple demonstration to illustrate the correct formation of daily tides for their audience. However, you kindly informed us that you’re a technical editor, and without being disrespectful, (although it might be) your comment may also be in need of some refinement.
The gravitational and centrifugal effects of orbital motion around a barycentre, both alleviate the gravimetric tensor of the earth’s own gravitational attraction, and allows water to move in sideways from the adjoining areas to equalise the system. And, we call this movement of vast quantities of water…tides! All perfectly sensible. Thank you.
Hi. It's all quite amicable? But the moon is not in a polar orbit.
Why is the tide low when the moon is overhead?
The earth is orbiting and revolving. The ocean is always on the move. You, me, the earth, the oceans, and the moon, are never static in space. The moon doesn’t have to be directly overhead to cause a high or low tide. Did that answer your interesting question?
how is the evolution
Hi Nashiira, I'm guessing from your polite comment that you actually meant *revolution* not *evolution* ?
Revolution - describes the motion of a planet in orbit around a barycentre, which is explained in a delightful little video released by Bright Side Science some days ago.
Evolution - is a theory proposed by Charles Darwin in 1859 and was called, On the Origin of Species by Natural Selection.
Newton and Darwin were both extremely great scientists. Take care and thanks for commenting. 👍
@@wavydaveyparker
@@nashiiranash You are very welcome, Nashiira. 👋
Dear creator, if I am not wrong when you are explaining about low tide or in perpendicular case , quarter moon figure is showing wrong explanation ,
I will check it soon
At 3:34 , moon which is down in presentation , but I understand because of our video , so thank u didi
It's not a pull on tidal forces... Rotating mass causes magnetic flux.. this is the same as mass... It's adding pressure and density to the atmosphere... Turning gaseous water. To liquid water.. now.. there's a pull effect...but it won't lift liquid it would change the temps instead.
Pull effect is by temp and mass difference. Within the magnetic field.. I doubt the water can help it.
Water is unable to lift on its own..due to it's movement and shape... Basically flat..... I would need a much lower density and a spinning effect that nearly boils... If I even hope the water would lift...
Until temperature is inverse to pressure. At that point forced state change occurs
That doesn't work for me for the reason where ever that water is being pulled to would Cause Massive flooding! For I was at the beach in a cave at the wrong time. It was high tide & mass amounts of water started to fill the cave up! I barely made it out to live to tell about it! And that was in 1986, still traumatized to this day! So it's doing the opposite somewhere else! And with all the water from all the rivers around the world pouring & pouring into the ocean it's not dramatically continuously rising! Don’t quote me ,Einstein once said if you can’t impress them with intelligence then down dumb them with B.S!
I got exam today
Thanks
Well, can I wish you the best of luck on behalf of 'Bright Side Science.' I'm positive you'll do great, and just remember, if anyone asks you where this centrifugal force originates from? Then, tell them that the Earth and Moon both orbit around a common centre of mass, called the Barycentre. Good luck.
Most welcome 🤗 and Best wishes ☺️
Most welcome 🤗 and Best wishes ☺️
Time waste..no clarity about spring, neap, equatorial and Apogee,perigee tides 😢
If ocean gets pulled why not our simple water may be like in a glass
The moon's gravity does not discriminate between the ocean or a glass of simple water. Would you like me to help you calculate the actual value?
hey
This is a simplified explanation that uses ideas like centrifugal forces that don't technically exist. If you want to know the real science, PBS SpaceTime did an amazing explanation: ua-cam.com/video/pwChk4S99i4/v-deo.html
How come lakes don't have tides? If the moon has enough "gravitational pull" to raise entire oceans 10s of feet in hours, then how come lakes don't seem to be affected? In fact I would think that at the very least you would se people's hair slowly stand up and reach for the moon during an extreme high tide😂😂. But on the contrary, you don't even know where the moon is unless you can see it so this all makes no sense
Lakes too are affected by tides...but comparing the ocean, the size of the lake is too small. The gravitational effect is so small as to be almost unnoticeable.
Place translate ttoburmese
Will try
The moon has high gravitational force compared to earth??? 🧐🤨🤨🤨🤨🤨🤨 you are saying.
No!
If you really want to understand in depth about this topic, you should learn about a very much important topic called ' barycenters'.
I apologize for missing that content in this video. But a video regarding the same will be released as soon as possible.
There is absolutely no need for you to apologize 'Bright Side,' although your diligent and thoughtful behaviour is very noteworthy, and as any respectable scientist or teacher will tell you, it's vitally important to show humility in the sight of small errors, and it's best to just make the corrections, and move on with your work.
Your tides presentation is a perfectly valid explanation for the simple occurrence of two high tides a day. At no point did you say that the gravitational force of the Moon was higher than the Earth's. Instead you said that the centrifugal force counterbalances the gravitational force and causes a high tide on the side facing away from the moon. Perfectly correct.
The Centrifugal Force was an idea introduced by Newton himself, to explain the 'apparent' outward movement of an object in circular motion, very similar to the action of a centrifuge, but he had to conclude that it wasn't a 'real' force, because there wasn't any agent to produce the desired effect, very similar to the action of gravity, which is the 'apparent' inward movement between objects of mass.
However, when questioned on this apparent error in his calculations, he had no answer and said, _"I'll leave that for the consideration of a future scientist?"_ And, that bright side scientist was none other than Albert Einstein, who concluded that gravity and centrifugal were both _'apparent'_ forces, which only appear in an accelerated frame of reference, and that both have a contributing factor behind the tidal phenomena we observe in our oceans, lakes and seas.
Can I politely suggest you have a look at Dr Becky's explanation of tides, as it's very similar to yours, and might provide you with some inspiration. Good luck.
Not good
Voice quality is low
Will make it better ☺️
It’s not centrifugal force! Otherwise it would be high tide everywhere at the equator. Stop pretending you understand.
I didn't tell anyone as I understand everything. This video is based on the ncert syllabus for small school children.
@@brightsidesciencePlease try and ignore the criticism, This individual is just attempting to be annoying and is very confused, Your video is a perfectly adequate explanation for daily tides, and Ideal for helping young people to understand.
This person has just misunderstood the difference between *axial* rotation and *orbital* motion, it's an easy mistake to make.
The gravitational and centrifugal effects of motion around a common centre of mass, or on its axis, both contribute to the tidal force envelope in a Newtonian model of gravity. It which gravity and centrifugal, can both be considered as forces in a classical interpretation of Physics.
Thank you again for your diligent approach to science education. Take care.
@@wavydaveyparker It’s hardly adequate if it teaches someone, even at a young age, something incorrect. The fact that you, presumably an adult, also believe the second tide is caused by “centrifugal forces” despite all logic showing this to be ridiculous shows the danger. You end up with an ignorant adult.
@@annoyingbstard9407 On the contrary, it's perfectly adequate if it teaches someone, even at a young age, that the Inertial motion of our planet through space is a contributing factor to the tides.
If you'd actually read my comment and understood it, assuming you're an adult. You might find that I never said the second tide is caused by centrifugal "forces" but it's perfectly fine to call it a "force" in Newtonian Mechanics, and I wouldn't call Sir Issac Newton an ignorant person, because I'm sure he'd agree.
However, if you have an alternative explanation that describes the motion of planets in a non-uniform gravitational field, then I like to hear it, and let's stop with petty insults, and remember to keep it understandable for the young audience who are studying the ncert syllabus mentioned above. Good luck.
@@wavydaveyparker Thank you but it appears you’ve decided you’re right so let’s leave it at that. As for teaching the kids anything, even if it’s incorrect, because it’s good enough for them….I’m happy you’re not an educator and let’s leave that there too.
But the moon has no gravity😂😂😂
Who on Earth told you, the moon has no gravity? 😂😆🤣
The acceleration due to gravity at the surface of the Earth is 9.8m/s^2.
The acceleration due to gravity at the surface of the Moon is 1.6m/s^2.
Therefore, the moon's gravity does pull on the earth's oceans, but that's not the end of the story for tides, and only the beginning. Good luck in your exams? 😂😅
No, this is wrong. The tidal bulge on the opposite side is _also_ caused by the Moon's/Sun's gravity NOT a centrifugal "force" - tidal forces are _solely_ due to gravity, no appeal to reference frame dependent inertial forces (like a centrifugal "force") is necessary. Tidal forces are _differential_ meaning they're the result of the _difference_ in the acceleration due to gravity at different places on the affected body. So along a line passing through the centres of the Earth and Moon and relative to the _average_ acceleration due to the Moon's gravity (i.e. at the Earth's centre), this _net difference_ in gravitational pull at the nearside is _towards_ the Moon and at the farside is _away_ from the Moon.
(one irony of this particular - quite common - misconception, sometimes referred to as the "two causes myth", is that, as in this video, it's almost always illustrated using diagrams from a non-rotating point of view above the Earth-Moon-Sun system i.e. in an _inertial_ reference frame, where _by definition_ the claimed centrifugal "force" doesn't exist)
That is extremely interesting, and you are wrong, thank you kindly for a comment, which is completely riddled with inaccuracies and scientific jargon. I’d never actually considered someone could be that confused before.
Technically speaking, there is *No* such force as “gravitational force” 😉 it is a virtual force.
They are both *virtual forces* in an *inertial* frame of reference, but fortunately for us, the Earth and Moon both orbit a *barycentre,* and are therefore both *accelerating,* which makes it a *non-inertial* frame of reference, where gravity and centrifugal both emanate into *real* forces.
These forces can then contribute to the *tidal force,* which acts across the diameter of the Earth in an *outward* direction from the centre, and believe it or not! the “tidal force” is also virtual.
I really enjoyed the way you spoke about “net” accelerations and average forces at the centre, but then suddenly jumped to the incorrect assumption that a gravitational attraction could actually move water *away* from the centre and *away* from the moon. You need to reevaluate your thoughts and stop spreading misinformation.
Orbital Mechanics has everything to do with inertia and centrifugal forces, why do you think it includes the word *Mechanics* - _the study of the motion of objects, under the influence of forces_ - You really haven't thought this through have you, whereas this channel does attempt to show young students the brighter side of science.
The tidal force equation does account for the orbital motion of objects and inertial forces, but once we consider the freefall motion aspect, then we can cancel those values from our calculations, because the "net" acceleration at the centre of the Earth is zero.
And, we're left with just the differential values, which act in opposite directions to the centre outwards, which is why it includes a (+/-) sign.
And, if we also reduce the _(Delta Radius value to Zero)._ Then we'd be left with a point mass in space, that's orbiting around a barycentre and precisely *no* gravitational differential to worry about or tidal force or any tides to speak of, and get confused about.
So, I suggest to go back and look at your mathematics again, and stop listening to the Emeritus Professor Donald, who doesn't actually say the "centrifugal" explanation is incorrect, but just a misconception, when used incorrectly, by attributing everything to a single apparent force like gravity. :) Good luck.
Earth is flat
nah bro
Nice but the accent is ruining the video