How do Tides Work? How does the Moon Cause the Tides?
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- Опубликовано: 3 окт 2024
- Here we will discuss the cause of the ocean tides. A rising tide is when the water level rises, and a falling tide is when the water level goes down. We call this the tide coming in and the tide going out. The tides on Earth are caused by the gravitational pull of the moon. On the side of earth facing the moon, the ocean feels a stronger force of gravity than on the far side of the Earth. Since the gravitational force is an inverse square law, the difference in gravitational pull is very different on opposite sides of the earth. This causes the oceans to bulge, and this is what we notice as the tides on earth. There are two tides per day because the moon's gravity causes two ocean bulges on Earth.
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![Why Do We See the Same Side of the Moon? - [08]](http://i.ytimg.com/vi/k1kjeWJRg2Q/mqdefault.jpg)
The Earth is neither static nor accelerating in a straight line motion. Imagine firing the Earth and Moon from two huge cannons and watch them both *orbit* around their common centre of gravity and you’ll have the correct answer to lunar tidal formation.
When Issac Newton first proposed the theory of Gravitation in his _‘Principia’,_ around 300 years ago! He unfortunately, neglected to give us the mechanism by which _‘gravity’_ worked! However, he did provide us with some very beautiful and simple equations, to correctly calculate the movement of Planets. His problem started with his acceptance of _‘absolute time’_ and distinguishing the difference between _‘gravitational’_ and _‘inertial’_ mass, which he considered to be equivalent, but being the genius he undoubtedly was, he agonised over that conclusion and knew it might not be completely accurate.
It wasn’t until Albert Einstein around 200 years later, that we were finally given the more complete answer to gravity, when he told us that the natural state of things is _‘free fall’_ ... and the _‘mass’_ of an object had the potential to curve the space around itself, within the confines of his proposed idea of _‘spacetime’,_ which he presented in his brilliant theory of General Relativity.... _I hope that helps?_ 🙃
As for the tides... well, they’re not that difficult to understand really? Think of it like this... At the very centre of the Earth, there is a centripetal ‘force’ of gravity pulling it towards the Moon... And there is also a centrifugal ‘force’ _(I use the terms loosely, because they are ‘apparent’ forces in an inertial frame, but the Earth-Moon system is definitely a revolving, non-inertial frame and they exist)_ due to the inertia of the moving objects wanting to continue in straight lines!
These two effects ‘balance’ according to Newton’s Third Law and the orbits continue, because the ‘net’ forces at there centres are zero. The centres of the Earth and Moon are indeed moving on spacetime paths, and don’t experience a net acceleration, because they are in *free-fall* around their *barycentre,* but still under the influence of a non-uniform gravitational field.
When we work out the tides, we use the ‘tidal force’ equations, which effect an object from the *centre* outwards.
Therefore, ‘No!’ pulling, or tugging away from oceans or moving towards the moon filling up bulges is necessary. Just the knowledge to realise that the Earth-Moon system operates like any two-body problem.
Of course, we then have to correctly apply the method of resolving these associated acceleration vectors into there respective components and recognise the buildup of sideways pressure in the underlying water column, which is what actually drives the tidal systems, but that’s not my particular area of expertise?
Take care and thank you so much for a valiant attempt to explain the tides and leaving so many questions unanswered?
Regards Wavy 👋.
That was pretty well stated and equates to our flat earth design. The difference with the globe bs is that it has the earth moving when it is not, but the toroidal field moves around the inertia plane of the earth.
The truth is, the moon spirals in and out across the ecliptic plane, coming back to the "nearly" central sun for the new moon.
What silly science isn't telling us is that the tropical gap 'is our earth's dielectric avoidance zone' the place earth was created from back at the central hyperboloid. Now that earth is the created torus from the hyperboloid it must have its own dielectric inertial space between the two magnetic fields/ hemisphere rotations.
Both Einstein and Newton speak of the same thing but are described in different ways. They speak of man having his own arc of the horizon, as his own perspective. The so-called curving space-time around him 🤣His 180-degree dome. While Einstein writes it as curved linear in his GR and special relativity, used as our coordinate system. He knew it concerned man's own arc of horizon the ancient Egyptian wrote about. You don't have to be a genius to see through the modern-day BS version taught to our children.
Some how I like your thoughts,and the addition on forces acting on an object , while moving,around a curve.
@@leonardkipngeno519 Somehow, I sincerely hope you were addressing me there Leonard, as I have no idea what the person above was saying, although I still appreciate their feedback, but unfortunately the Earth is definitely not flat or sitting stationary at the centre of the solar system, and we have that on the good authority of both Newton and Einstein, who spent a considerable amount of time contemplating the problem. I did make a little video where I attempt to dispel this ridiculous idea, about the tides being formed by the earth moving in a straight line, as is presented in this rather disappointing lesson, and I’d be more than happy to discuss this further with you there. Thank you.
Hi Wavy.
Well said, as usual!
I see he didn't dare to answer.
I agree
As the Earth rotates around the barycenter of the earth/moon system, a "sloshing" of the water causes additional tidal forces on top of your description.
"sloshing" - I couldn't think of a better word at this time. LOL
I am glad, though, that you did not talk about the full moon some how causing higher tides. LOL That one always gets me laughing.
For some reason I feel obligated to slightly correct your enlightening comment, if you’ll allow me? but, I don’t know why, because you’re too busy laughing. Anyway, “The Earth *revolves* around the barycenter of the earth/moon system, a sloshing of the water causes a *contribution to* the tidal force.” The Earth is *not* accelerating in a straight line towards the moon. That always gets me laughing too. Lol
@@pre-faelliteray7383 Thank you for taking the time to add to my comment. You are correct and I should have mentioned that as well. The barycenter with the sun also plays a little in the tidal forces as well as Jupiter, Saturn.....I enjoy Laughing Out Loud. LOL
@@annettelupau9759 Thank you for taking the time to add to my reply. You are correct Annette and I should have mentioned that as well. The barycentre is a wondrous thing and often overlooked 😁 If you enjoy laughing so much, then you should catch a glimpse of wavy’s cartoon called, “What atomic school gets wrong about tides!” I personally think you and him would enjoy Laughing Out Loud together. 🤣 Thanks for making me laugh.
LOL
I'll get my coat
He does not appear to know that there is a Barrycenter for the Earth-Moon system. That is the Moon is not orbiting the Earth, both are orbiting the Barrycenter which is some distance from the Earth's center (but still inside the Earth). This causes a centrifugal force that is greater on the side away from the Moon and less on the side facing the Moon.
Good spot! Richard, this is very disappointing. Actually, the centrifugal effect is same across the whole planet, since the earth is revolving around the barycentre and not rotating. However, you are absolutely correct in everything else you typed. Thanks.
Exactly! That was missing!
@@holgerreichel7396 Yes Holger, and would you like to know what happens when we neglect to mention it’s existence? Well, have a look at my “daft” little video to find out, and I’ll be able to properly reward you for your diligence. Thank you.
@@wavydaveyparker Your video is funny :-) I would like to see an animation that shows the revolving earth/moon system as well.
@@holgerreichel7396 Hey thanks, I’m really glad you enjoyed it! Of course, if you’d like to see an animation of this correct revolving motion, then comment on my cartoon, and I’d be more than happy to point you in the right direction, because it might help other people understand accelerated motion better, after they’ve stopped laughing at my funny cartoon that is! 😁 And, it might also help me, get a better picture of what people need to see, if I ever get around to actually making a correct follow-up video. Thanks. 😅
This video isn't only a lesson in how tides work but it would be an incredible instruction video for future teachers. This is how you explain stuff.
Nice, but your enthusiastic and convincing explanation of the very complex fenome of tides is wrong, because there is a very important couple of things missing...
1. Moon does not orbit around the earth, but moon and earth are BOTH orbiting around their common center of gravity, their common baricenter, located much closer to the center of the earth than to the center of the moon because the moon is lighter. Galileo was not exactly right, nor was everybody else arguing him in those days becsuse bith sun and earth are orbiting around their common baricenter too.
2. The Newtonian forces of gravity between moon and earth are unable to be felt because they are exactly counteracted by the fact that both celestial bodies are in orbit, same as the weight of an astronaut of the ISS cannot be felt, even if it's still pretty strong at an altitude of arounds 400 Km because his or her weight up there is as high as an 80% of the astronaut weight at he surface of the earth. Gravity is there but cannot be felt, nor the vectors pictured, because the astronaut's weight (force of gravity) seems zero counteracted from the force of spinning at a fast angular speed of one turn in around a 90 minutes period orbit.
The force of gravity between moon and earth of course does exist, but appears to be non existent because it's counteracted by the fact that both moon and earth are in orbit spinning at an angular speed slower than the ISS, of one turn in a period of those mentioned 27 days.
There is one thing that should not be mentioned when explaining tides which is the force of gravity between moon and earth, because luckily this force is counteracted by the centrifugal force coming from the fact that both moon and earth are spinning in orbit.
Precisely is the same centrifugal force that drys our clothes in a washing machine what nullifies the gravity between earth and moon, thank goodness!
Because otherwise the force of gravity applied to moon and earth would cause an initial acceleration excerpted to both moon and earth resulting in a movement at an increasing speed.
An instant later the distance between moon and earth will be smaller resulting in a new force of gravity stronger than before, causing a stronger acceleration until moon and earth will collapse in a very small amount of time.
You have been using the force of gravity between moon and earth, picturing those vectors when this force should be removed from the explanation.... thank goodness!
I think that it would be worth to try a new enthusiastic explanation. I do like your style. Go ahead!
Thankyou sir for an amazing lesson. I am so much more interested in science as you explain things so well.
Gravity is NOT a Force!!
There are numerous RUclips proper science and physics channels explaining this.
...all by flat earthers
Wonderful, your lessons make me more inquisitive about learning. Thanks!
My pleasure!
@@MathAndScience ELECTROMAGNETISM/energy is gravity. c squared CLEARLY AND NECESSARILY represents a dimension of SPACE ON BALANCE. Accordingly, ON BALANCE, the rotation of WHAT IS THE MOON matches the revolution. Great. The stars AND PLANETS are POINTS in the night sky. WHAT IS E=MC2 IS dimensionally consistent. Consider TIME AND time dilation ON BALANCE. Consider what is THE EYE ON BALANCE. TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS WHAT IS E=MC2 is taken directly from F=ma; AS the rotation of WHAT IS THE MOON matches the revolution. WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. (BALANCE AND completeness go hand in hand.) It all CLEARLY makes perfect sense ON BALANCE.
By Frank Martin DiMeglio
The maria occupy ONE THIRD of the visible NEAR side of WHAT IS THE MOON !! Think about it. This IS fundamentally related to the surface gravity of what is THE MOON. Attention: The rotation of what is the Moon matches the revolution !! Now, consider the gravity of WHAT IS THE SUN !! ON BALANCE, the crust of the far side of what is the Moon IS about TWICE as thick as that on the near side !! (The gravity of WHAT IS the Sun upon WHAT IS the Moon IS about TWICE that of what is THE EARTH !!!). BALANCE AND COMPLETENESS go hand in hand. GREAT !!!! LOOK around. Think. Piece it ALL together !!!!
By Frank Martin DiMeglio
News flash !…a monumental breakthrough in physics !!
How can WHAT IS the Sun exist against (or in comparison with/contrast to) what is outer "space" ? HOW CAN IT EXIST IN SPACE AND TIME ON BALANCE? HOW CAN WHAT IS E=MC2 BE THOUGHT OF? Why, in other words, does (and can) the Sun have (or enjoy) what is a PREPONDERANCE of being? Why and how can it (come to) exist? The answer is TIME, SPACE, AND WHAT IS E=MC2 ON/IN BALANCE !!! GREAT. Consider what is THE EYE ON BALANCE. MAGNIFICENT ❤️. What is gravity IS E=MC2 (ON/IN BALANCE). ACCORDINGLY, ON BALANCE, the orange (AND setting) Sun AND the fully illuminated (AND WHITE/setting) MOON are the SAME SIZE as what is THE EYE (ON BALANCE); AS WHAT IS E=MC2 is taken directly from F=ma. Great ❤️. INDEED, this is CLEARLY why (ON BALANCE) the rotation of WHAT IS THE MOON matches the revolution. Fantastic. WHAT IS E=MC2 is taken directly from F=ma, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS the rotation of WHAT IS THE MOON matches the revolution !!!! PERFECT. THINK. BALANCE AND completeness go hand in hand. It ALL CLEARLY makes perfect sense ON BALANCE.
By Frank Martin DiMeglio
Dr. JASON,
you are such an extraordinary professor. You explain complicated subjects in a very understandable and practical manner. You make difficult things very easy to understand. You are truly one of a kind. You are a legend.
We love you.
You are unbelievably a great professor.
Thank you thank you
Wow I really appreciate the nice words
are watching the same video?
I listen to you the whole lecture and I agree with you 80%
my name is Baker and I am from Jordan but I am living in Illinois right now the part which doesn't resonate with me is the bulging at the opposite side of the earth I actually agree about what you illustrate about the victors in deferent directions and all that and then you assure the bulging from the other part is real no doubt about it , so if that is the case then I would say the reason because the water pulled out as a conic shape due to the gravity of the moon then there was a drop of water at the north and south poles let us say a kind of water vacuum happened at these poles left the other part of the ocean loosely connected, and with the power of the centrifugal force of earth rotation give good chance for the water to be pulled away from the earth causing that opposite bulging ..... this is my prospective . So what you think?
Hello Baker, my name is ‘wavy’ (it’s just a screen name! - like Hank Marvin - not important…) What you just wrote there seemed very plausible to me, and your mention of ‘Centrifugal’ was very telling and accurate. Thanks. Maybe you’ll do me the honour of watching my ‘daft’ little video and I’ll be more than willing to explain further. Keep strumming that Stratocaster! Take care.
@@wavydaveyparker absolutely 👍👍
Unfortunately, It’s beyond my capabilities to add 👍👍 to my own creation. Here “What Atomic School Gets Wrong About Tides! and tell me what you think over there? Thanks.
where you got this video from ? any way I would say in that regard how low tide and high tide occurs still hypothesis no one exactly knows we just analyzing predicting what's going on, many parts of the video doesn't resonate with me specially when the moon pulls the ocean toward itself and then pulls the earth as well . As if the ocean contains the earth and not the earth contains the ocean. that completely wrong because the moon is smaller than the earth though he has smaller mass then smaller attraction on the earth , if he have that power to pull the earth and put it in the middle of the ocean as the animation describes then again the whole process will continues over and over again till the earth hit's the moon as it was shown at the end of the video in which that senaryo never happen . ok the moon has it's own gravity but not to the degree where it pulls the earth that much .
@@baker.marafat1750 What you said there, was exactly what I was attempting to illustrate in my video. I just wish you had posted your comment there, instead of here, as I’d be more than willing to continue our discussion there and not here…because, this video is a farce. The earth does not accelerate in a straight line towards the moon. Please read my other comment here regarding Newton’s law of gravitation and Einstein’s general theory of relativity. They both set out the correct picture of gravitation and provided Laplace with the data to correctly formulate his tidal equations, which accurately predict our daily tides to great precision. It’s hard enough getting any engagement with my video, when I have to spend most of my time answering comments on content that continues to spread gross misunderstandings of basic Physics. Take care my friend.
I always thought the buldge on the opposite side of earth was the result of tidal forces exeterd by the sun. Had no idea vector forces are at play. Once again, blew my mind!
Yeah totally not intuitive. Thanks so much!
This guy rocks. He has a talent for explaining things in a way that's not too simple and not too complex. Striking that balance is what i'm always looking for. Well, that and not sounding annoying, which he does not sound annoying.
The passion of this Engineer is mind blowing , the details of the way things are explain are second to none. This man not only has full knowledge on the matters he teaches, not only he explains in very absorbable way , but he loves what he does. I believe in Engineers; can't say it enough: It is a pleasure, Sir!
Thank you so much!!
@@MathAndScienceWHAT E=MC2 FUNDAMENTALLY means is that gravity/acceleration involves what is balanced inertia. INDEED, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). Consider TIME AND time dilation ON BALANCE. This CLEARLY proves what is the fourth dimension, AND this CLEARLY solves what is the coronal heating “problem”. I have proven why the rotation of WHAT IS THE MOON matches the revolution, AS I have proven why WHAT IS THE MOON will (and does) move away very, very, very slightly in relation to WHAT IS THE EARTH/ground !!!!
By Frank Martin DiMeglio
Gravity/acceleration involves what is balanced inertia, as WHAT IS E=MC2 is taken directly from F=ma; AS the rotation of WHAT IS THE MOON matches the revolution. This is CLEARLY consistent with the FOURTH dimension AND conservation of energy, AS the stars AND PLANETS are POINTS in the night sky. (INDEED, gravity AND ELECTROMAGNETISM are linked AND BALANCED opposites.) Consider what is THE EYE ON BALANCE. What is E=MC2 is consistent with TIME AND time dilation ON BALANCE, AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS E=MC2 is taken directly from F=ma; AS the stars AND PLANETS are POINTS in the night sky ON BALANCE; AS c squared CLEARLY does represent a dimension of SPACE (ON BALANCE); AS the rotation of WHAT IS THE MOON matches the revolution. Great. MOREOVER, WHAT IS THE MOON will (and does) move away very, very, very slightly IN RELATION TO what is THE EARTH/ground. Great. I have FUNDAMENTALLY and truly explained the cosmological redshift AND WHAT IS THE FOURTH dimension. (Consider WHAT IS complete combustion AND WHAT IS E=MC2.) GREAT. Again, gravity/acceleration involves what is balanced inertia; AS WHAT IS E=MC2 is taken directly from F=ma; AS I have FUNDAMENTALLY and truly explained the motion of what is THE MOON; AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE). Great !!!! Again, consider TIME AND time dilation ON BALANCE. Perfect. Think. Again, I have CLEARLY proven WHAT IS the FOURTH dimension ON BALANCE. “Mass”/ENERGY is CLEARLY electromagnetic/gravitational ON/IN BALANCE. GREAT !!!!
By Frank Martin DiMeglio
RUclips's great father, that every kid wanted and needed, thank you Jason 👍
Dr. Jason, I'm 55 and used to be a science enthusiast. Entering into arena of science again to recall what i have learned in school. You are the best science teacher i ever had. God Bless!
Dr.Jason , one of the best teachers I have come across on this platform , I want to thank you for the efforts you do in your simple sweet yet inclusive videos . Keep it up professor
Wow, thank you!
@@MathAndScience WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! BALANCE AND completeness go hand in hand. GREAT !!!
WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. (WHAT IS E=MC2 IS dimensionally consistent.) Consider what is the man (AND THE EYE ON BALANCE) who IS standing on WHAT IS THE EARTH/ground, AS touch AND feeling BLEND; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! BALANCE AND completeness go hand in hand.
WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent, AS “mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/AS what is BALANCED electromagnetic/gravitational force/ENERGY; AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE (ON BALANCE). INDEED, GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE); AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE !!! The stars AND PLANETS are POINTS in the night sky. WHAT IS E=MC2 IS dimensionally consistent !!! Accordingly, ON BALANCE, THE PLANETS (including what is THE EARTH) sweep out equal areas in equal times. Consider TIME (AND time dilation) ON BALANCE.
WHAT IS E=MC2 is taken directly from F=ma, AS TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE). WHAT IS GRAVITY IS, ON BALANCE, an INTERACTION that cannot be shielded or blocked. WHAT IS E=MC2 IS dimensionally consistent !!!
CLEARLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites (ON BALANCE); as the stars AND PLANETS are POINTS in the night sky. Consider TIME (AND time dilation) ON BALANCE.
INDEED, TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE; AS ELECTROMAGNETISM/energy is CLEARLY AND NECESSARILY proven to be gravity (ON/IN BALANCE) !!! GREAT !!!
ACCORDINGLY, ON BALANCE, the rotation of WHAT IS THE MOON matches the revolution. GREAT !!!
WHAT IS E=MC2 IS dimensionally consistent. GREAT !!!
It is a very great truth that the SELF represents, FORMS, and experiences a COMPREHENSIVE approximation of experience in general by combining conscious and unconscious experience. INDEED, the INTEGRATED EXTENSIVENESS of THOUGHT AND description is improved in the truly superior mind. BALANCE AND completeness go hand in hand.
By Frank Martin DiMeglio
Wow you think I don't know you wrote that yourself.. come on
The moon does not go around the center of the earth. The Moon-Earth system goes around a common center of gravity. This is located at a point on an imaginary line between the midpoints of the moon and the earth approximately midway between the midpoint of the earth and the surface of the earth. Around this point the globe rotates once a month. This rotation creates, via centrifugal forces, a "water bulge" on opposite sides of the globe. The bulge that is directed towards the moon becomes extra high due to the gravitational pull from there.
These two tidal waves orbit the Earth due to the Earth's rotation. Time The size of the water depends, among other things, on the depth of the sea and the appearance of the coasts. When the tidal waves are pushed into the wedge between England and France, the tide can vary by up to 10 m in extreme cases (when the sun's gravity also cooperates in the race)
How can the two tide bulges be of similar size when the Earth-Moon barycentre is offset by 4670 km from the Earth's physical centre?
That means that the point on the Earth's surface closest to the barycentre is
6371 - 4670 ≈ *_1700 km_* away from it while the most distant point on the opposite side is
6371 + 4670 ≈ *_11,040 km_* away.
Since the angular velocity around the barycentre is the same for both points (13.2° per day), the centrifugal force at the point facing _away_ from the Moon will be 11,040/1700 ≈ *_6.5 times stronger_* than at the point facing _towards_ the Moon!
yes the Moon does orbit the barycentre; but it also orbits the Earth in the process of doing this.That is why they say the Moon orbits the Earth
Am not convinced with the last explanation,how do the vectors go backwards,I think let's just use the simple explanation of centripetal and centrifugal forces,and bulging on the other side,as the distribution of the same force acting contralateral,though I don't know if it Will be okay. This might make sense if you will think about the water,if the earth would move faster on its axis.Think about.This might make the bulge on the side of the moon abit bigger than on the contralateral side as well,since the moon,exerts some little pull.So my big question in this, particular explanation is why are the vectors going backwards,to the direction of the moon's pull? Kindly.
For the first time I understand how tides work . You rock !
Awesome. Love to hear this!
👍👍
Yeah sure, you do 🤣🤣
Make-believe doesn't explain two sides of a spinning ball to bulge
You are great in explanation!
I wish I had someone great like you to teach me when I was young. Would be more interesting to learn more mathematics and physics. 👍
Really appreciate your kind words!
That is a 'kindergarden' explanation' the _actual_ tides do not occur as those 'bulges' indicate. Where I live the high tide occurs when the moon is on the horizon. I live in New Zealand and the high tide moves around the islands such that there is one point where it is high tide and one point that is low tide. In the North Pacific the high tide sloshes back and forth - it moves eastward to North America and then sloshes back towards Japan.
Richard...it is "kindergarten" Your spelling is wrong 😊
@@fatimabasson Fatima…Your spelling is correct, but Richard is right…this video is not correct 😊
New Zealand is one of many places where local geography and ocean properties distort the hypothetical ideal tidal behaviour
Excellent job, very well explained. But it’s going to be difficult to understand for people without a certain knowledge of physics and vectors.
Thank you for great explanation of tides. It’s an amazing thing.
Thank you. Well explained.
I like the force vector explanation, it actually explains how the water moves
The molecular bonding nature of water in a large connective mass must take some blame as well. The pressure of the body of sea water closer to the sea bed is greater than it is closer to the surface hence a bouge .As the Earths spin out strips the line of gravitational attraction to the Moon and the connective resistance between the weight of the Sea water on the Sea bed contribute to the affect( The 320 billion cubic meters of Sea water are in a tug of war between the Earths gravitational effect and the moon and visa versa )
You make learning exciting. I'm so grateful you have these classes for the public to learn from. If all teachers felt and showed your level of passion, we would become a planet of geniuses. PS You ruled out my layperson idea that centrifugal force played a part of the tides.
WOW! I learned a lot with this video - makes the prior explanations so insignificantly
Another cool thing about tides was it birthed analog computing with the advent of the tide predicting machines. Very helpful in the D-Day invasion.
This was by far the best explanation of tides. I do thank you
brilliant explanation of why there are two tide cycles per day, I'd never quite got my head around that until this video.
That was really a great video. Very well explained in small steps.
Glad it was helpful!
my noodle has been thoroughly baked for many years, nonetheless, you have an uncanny way of making seemingly mundane subjects very interesting, thats a talent that not many people possess.
I appreciate that!
I can listen to Jason all day long. I love the way he explains the subject he is teaching. It's like listening to a symphony.
sir how come that earth still not colliding to the moon as it pulling the water of the ocean and you said 30 centimeter of crust of the earth also pulled
Very thorough explaination!
Amazing and simple, waiting for E=MC Square so i can explain others.
Good idea for a video
Great lesson. I am still trying to wrap my head around why the force vectors on the opposite side of the earth are pointing away from the moon.
One is due to gravity, the other due to momentum.
It's relative. The forces he shows in that diagram are relative to the force at the centre of the earth. After all, you're trying to pick up on how everything is moving relative to the earth, so you subtract the moon's force on the centre of the earth from the forces on the surface water.
Yes, on the near side facing the moon, tidal force is 1/30th greater than average tidal force on earth, so it tends to pull you away from the earth. On the far side , force is 1/30th less than the average tidal force on earth, so this tends to pull the rest of the earth away from you. From earths perspective, this is important as Mr Gibson has stated
You are such a great professor! Thank you so much for the great lesson..
You're very welcome! Thank you!
During eclip adding and distorting can be learnt easily
Good one ! Although both are good, I actually prefer simply well explained over just nifty animations & such. & regarding black holes, a quite non intuitive fact is that supermassive one's have much smaller tidal forces at & near the horizon than smaller solar mass ones. So, the smaller they are the greater the danger of spaghettification when approaching. They range from city sized to solar system sized & beyond(as far as we know). Its all about scale(the size of you Vs. it) regarding particular distances. Ignoring the potential firewall issue, they can easily be so large that there is no danger until LONG after you fall in. Lenny Susskind covers it in some depth in his GR lectures from Stanford as well as in one of his books, if anyone is interested.
One more time, you are my best teacher!👍
Thank you! 😃
My older brother, my younger brother and I went cycling one day. My younger brother was considerably fitter than me and my older brother. I fit behind my younger brother and noticed that the distance between him and me was increasing. I looked behind and saw my older brother keep falling behind me (because his physical condition was lousy). Three bodies that behave according to their physical strength
Thank you for the excellent explanation 👍
Good lesson thank you very much
You are a great teacher
Thankyou great explain....
awesome....so many thanks.
Welcome!
Amazing, perhaps the rings around planets were formed with the same principals? Something superceded the planets gravity, at least for the surface water and crust that would have been lifted...or sqeezed along these vectors to essentially suck all the surface liquid up and off the surface, thus breaking the earth's gravitational hold on that water forming icy rings, in theory. Thank you for sharing your knowledge and passion for math and science. We use this with great results. 🙏
Wow. Dude you were born to do this. Outstanding!
Thanks! 😃
At around 31:00, when he talk about small forces adding up, it’s something that can be seen many other places. Ever seen when they feed cows they have to put their heads between bars to eat? Well without that, the cows all pushing to get into the food adds up to so much that if there’s a wall at the end, they will crush and hurt it even kill some, same thing for crowds of people at a concert of sporting event, a little force adding up makes crazy waves of surges that can and will kill people. I think this video is a pretty darn good explanation, yes there are things he didn’t talk about, but it’s necessary or helpful at least to learn basics before getting more advanced and I think he did a great job of it. It would be awesome if one of RUclips’s really good animators would help out
Waoooo thank you for your great lessons. Never had a great teacher when I was young.
It’s time to catch up with a real profesor like you
Wow thanks so much!
The position and shape of land masses affects the tides causing standing waves and nodes in the oceans. Where I live we usually have one high and one low tide per day.
Just curious where do you live? And are you talking about a 24hr day or just daytime (roughly 12hrs)? Where I live on the east coast of the US our tides rise for about 5 hrs and fall for about 7 hrs with some slack tide in between. The tides are approx 1 hr later each day. also I am on a river which rises and falls about 8 ft.
@@chucksmalfus9623 If you google "diurnal tides" you will find maps of the world showing areas that have one high and one low tide in a 24 hour period. I am in the south west part of Australia. Our tidal difference is usually quite small (less than a meter). Occasionally we do have a bit of a second tide (google "Mandurah tide times"). The direction and strength of the wind can have as big an effect on the tides as the moon does! (it is often very windy here, especially now in summer). I have experienced the big tides on the north east coast of the US in places like Bar Harbor Maine and the massive tides further north in Canada in the Bay of Fundy. The northern parts of Western Australia also have quite huge tides. At Roebuck Bay the tides can reach about 10 meters and the sea retreats for miles.
@@Andre_XX Thank you Andre, very interesting, thanx for the lesson.
@@chucksmalfus9623 Sure thing, always keen to share or to learn from others too.
Thank you! This is an excellent lesson.
You're very welcome!
Excellent explanation
Glad you liked it
Thank you
Excellent way to explain I have a much better understanding thank you
Glad it was helpful!
I LOVE that you go slow enough that 10 minutes is 3 to 4 times longer for us ! 👽👽
Awesome thank you!
THANK YOU... SIR...!!!
Thank you so much for this explanation. I've never really understood why we get two tides (one 'high-high' and one 'low high' tide (and vice versa). Your explanation was excellent. Thank you.
Glad it was helpful!
Water is influence by the gravity and the centrifugal force. It also has some inertia to continue to flow where it is dragged, so that the shape of the shoreline comes into play.
Brilliant. Thanks 😄👍. PBS Science video a few years back goes into this and is a brilliant video too but you add a layer of detail that just makes it so comprehensible and intuitive.
ruclips.net/video/pwChk4S99i4/видео.html PBS Science video
Glad it was helpful!
thank you very much, i am vary intrusted your classes ,if you don't main i have a request, one full lecture please,,,,
Outstanding.Thank you.
Thanks so much!
off topic, 10 minutes plus or MINUS 12 minutes, time traveling machine right here, nice math and science :)
Yeah I’m just being goofy :)
@@MathAndScience Thank you for what you're doing, I learn a lot from the way you teach.
Wow, thanks so much my best teacher ever
You are very welcome
Wow. Tidal force =any given point on earth - average . This means near side tends to pull you away from earth, far side tends to pull earth away from you. Thanks
Thank u very much educational and at 72 i find your explanation very interesting from PH
Sorry, but I don’t know who PH is? However, this explanation is interesting, but not correct, so let me ask you a question…At the tender age 72…Have you heard of Henry Cavendish?
If we think a little we will be able to conclude that: a binary rotational system will be in equilibrium due to the equal and opposite forces, f centrifugal and f centripetal, so the centripetal force (gravitational force in our case) will be equal to the centrifugal force, one causes a tide, the other on the opposite side. Simple and logic.
He goofs when he starts with a drawing of the earth and moon that he describes as simplified by ignoring rotation. However, without rotation the oceans of the earth would only bulge on the side facing the moon, not on both sides.
Apart from that goof, it is a bad strategy to explain the phenomenon of tides with a formula that calculates the force of gravity. Calculating a force does not explain the force. Newton was able to calculate gravity without knowing that gravity is an effect of general relativity. Also, lunar tidal locking is just a distraction from the focus of the talk.
It would also be clearer if you expressed that your original diagram of the force vectors is with respect to the earth, while the subsequent time-lapsed diagram positions the rocks with respect to the surrounding space.
So, the result of this explanation is that the difference between high tide and mean tide in the plane of the moon's orbit must be greater than the difference between low tide and mean tide, since the tidal pull on the low tide area is composed of two vectors at right angles to each other. Is that the case?
A brilliant analysis there Harold. Thanks. However, it’s a bit late now, because this has already been published with the ‘goofs’ included and will now join the endless array of other misleading pictures of tidal movements. Oh well…
Thanks teacher
You are welcome
Thanks for your videos ^ happy new year!
Same to you!
Thank you for a really great video. How do you explain this with Einstein's spacetime.
And why are the tides so big in Liverpool, Bristol and Saint-Malo l, but tiny in Egersund, Messina, Helsinki and Istanbul?
It made some sense, however I do not understand the comparison, because the earth does not draw nearer the moon.
@@wavydaveyparker I looked at the full moon at 6:30 pm, and the tide was low. At midnight, was high tide, and then at 7:30 am the tide was low again. I find it hard to believe the moon has an effect on the tides, or it would have been high tide all night.
Your awesome, thank you for everything you do.
You are so welcome
Thank you. Very interesting. I didn't know that tides make bulges of water on the both sides of the Earth.
Welcome!
Keep up the good work
Thanks, will do!
Thank you so much incredible!!!
You're so welcome!
I did a rough calculation, the moon's pull on earth is 5.5E-6 g
Sun's pull on earth is 5.7E-4 g
But Sun is so far, the tidal force (difference between earth near the sun vs center of the earth) is very small.
Moon's tidal force is much greater than Sun's, the differentials, about 400 times more.
Still tiny force, but for 6 hours of persistent pull, it can move some ocean.
23 hours and 56 minuets! wow! Teacher of teachers. 🤩
Gravitational lines of force add. Hence other side on the earth moon,pull is added. Hence two buldges
I you will make a video on orbital positions and rotations you might need to use a 3D program like blender so we can visualize it better. Ps this video is amazing.
The center of mass in the Earth-Moon system, also known as the barycenter, is located within Earth itself. It lies about 4,671 km (2,902 miles) from Earth's center, which is approximately 75% of Earth's radius on the moon side.
While it seems like the Moon orbits Earth, both the Earth and Moon actually orbit this common center of mass. However, because the Earth is much more massive than the Moon, the barycenter is located closer to Earth's center, causing the Earth to wobble slightly as it orbits the barycenter.
This means that the elliptical path we generally attribute to Earth's orbit around the Sun is actually the orbit of the barycenter of the Earth-Moon system. So you would observe the earth wobble about the barycenter the side opposite the moon is traveling faster around the barycenter and thus it is centrifugal force that is causing the bulge opposite the moon in about the same magnitude as the moon facing side.
interesting, but information overload. Try to make a summary video of this with a length of in between 5 and 10 minutes.
You can imagine the earth without water, water balances the shape of the earth, and its revolving or orbiting around its self, and the sun. Ebb and tide are considered as a safety vale for the earth, and its rotation.
Earth with water slows its revolving...
The water increased because of the melting of ice caps of polars and Himalayas, therefore the force of revolving increases too...
NOW:The length of the year now is [ 365 1/4 +_(2 minutes )]....
These studies had completed and sent on July 26th 2000...
Yousif A Tobiya
Great video
Thanks!
Best "10" minutes I've spent all day. 😁
Wow, thanks!
Ooh, topic sounds exciting! Ten minutes is very convenient and practical 😊
Hope you enjoyed it!
@@MathAndScience Yes, explanations and illustrations are very clear and fun.
how do we know that gravitational force is inverse of square of distance and I mean that why it is not cube or just equal to the distance why squared?
Would you really like an answer to your fascinating question? Well…find, “what atomic school gets wrong about tides!” and ask them. Please?
The inverse square law is simply function of three dimensional space when anything is radiated uniformly from a point source. Newton's Universal Law dilutes the Earth's mass over outward propagating spheres whose surface area is a function of the square of the sphere radius. We "know" because it works/ predicts behavior with high predictive validity and the limitations it does have, in high gravitational fields for example, have been resolved by Einstein. Components of electromagnetic fields behave the same way from a point source, as does anything that spreads out uniformly in 3D space.
@@recurrencetheorem4264 An absolutely perfect answer. Thanks, I’m going use that from now on. It’s just a shame that it now resides under a video which doesn’t understand how tides work.
Shouldn't the tide bulge be lagging instead of leading the earth in relation to the line that connects the moon and the earth? That is, shouldn't theta be in the opposite direction to what was shown?
Gravitation is adding through mass
so interesting
Awesome
Sir, would a better comprehension of what you explained here not be done with a 3-D model?
you are the best
Thank you!
The Moon's gravity at the point of Earth closest to it is only *_1/10,000,000 of one g_* stronger than at the Earth's centre, so it shouldn't be able to lift the oceans more than a tiny fraction of a millimetre if the working mechanism was as simple as that.
Therefore, the part near the end of this video about how the water is pushed sideways by the accumulated forces between the molecules over thousands of kilometres was the most interesting. Most explanations about how the tides work ignore that and therefore fail to explain why there are hardly any tides in lakes.
The force is near constant it is the direction vs rotation that causes water to flow.
It’s a message from the Moon to the Eartlings, meaning “be careful”.
The heart beat of the earth
@30:20 "...forces can be transmitted through water, then we have the two bulges..." This is incorrect. As Jason explains a minute earlier, the gravitational forces (of the moon) on the individual particles are what causes the bulges, not forces between particles.
Also @30:35 “…the most important things in this whole lesson”? The larger tides in large bodies of water compared to smaller bodies have nothing to do with incompressibility or adding forces.