<<@faboolean7039 says : Lasted about 60 seconds before getting confused>> <<@5minutesofyourtime says : so this is going to be my open to relativity>> <<@SheepRock7 says : Does anyone remember Moetan?>> <<@ralanham76 says : The solution to conflict is non-flict. They both work in situations. Just like solar systems and galaxies have places where they’re pretty much round and places where they’re relatively flat based on the properties. Maybe one day we’ll discover a way to connect them with one formula possibly just accepting how they work is good enough for a while.>> <<@MatthewPhilip-v6z says : So the apple on the branch is released from the branch, and it then follows a geodesic curve towards Earth. But why does it move from that position at all? What causes it to move? Newton said the Earth pulled it. What did Einstein say?>> <<@meowwww-minh says : Understand : 0% Trust : 100 %>> <<@jaymzs says : Ummm. What?>> <<@MartinJefferies-j1d says : I am standing on the Earth and saying "Earth, I am trying to follow my geodesic, but you are in my way - please move!">> <<@MartinJefferies-j1d says : Another excellent video.>> <<@frankv7068 says : You did not explain how gravity works on Earth right>> <<@matthewstone1362 says : Im an idiot. What glues electrons into atoms. What stops them flying apart?>> <<@PlanetGark says : Hello, the diagram you show @4:43. Is there a name for this kind of scientific research flow chart?>> <<@FrankReddick says : Not Recommended.>> <<@ziwi1020 says : me watching this vid while procrastinating on my GR take-home final (I have no idea how to do them)>> <<@Bootmahoy88 says : This is a delightful presentation. Thank goodness I paid close attention in my differential geometry classes, etc.... Pseudo Riemannian Manifolds be damned, ha. I love it. I actually followed this through level 6. Actually solving those 10 non-linear differential equations is kinda heavy, ha, but at one time a few decades ago I could do it. So fine to have this run-down to marvel at.>> <<@minhhienhoang9464 says : That escalated quickly...>> <<@xavierterri3014 says : ●EINSTEIN'S GENERAL RELATIVITY IN 6 STEPS DOES GRAVITATIONAL ACCELERATION DEPEND ON VELOCITY? Argumentative schematism of Einstein's General Relativity (each step is a consequence of the preceding step): 1) Einstein's Equivalence Principle 2) Gravitational motion equations: geodesics DU = 0 3) The gravitational potential is represented by the spacetime metric itself: which guarantees, since the covariant derivatives of the spacetime metric are null, that the gravitational motion equations are given by the geodesics DU = 0 of the Einstein Principle of Equivalence 4) Gravitational Field Equations: These are the so-called Einstein Equations, which are built on the prejudice that the tetradimensional gravitational potential is represented (again in accordance with the Equivalence Principle) by the spacetime metric itself 5) Solution of Einstein's Equations for the symmetrically spherical stationary gravitational field: Schwarzschild metric 6) Zeros and mathematical infinities in spacetime metrics. "Broken" spacetime. Theoretical prediction of black holes and event horizons Reasonable doubts: 1) What would happen if the four-dimensional gravitational potential was not represented by the spacetime metric itself, but adding another new potential related with tetravelocity? : http://vixra.org/abs/1510.0137 2) What would happen if Einstein's Principle of Equivalence were not rigorously true? : https://vixra.org/abs/1510.0135 ●La gravedad es una tetrafuerza. Con esta concepción se pueden describir coherentemente los 3 test clásicos ●ESCAPE VELOCITY ACCORDING TO THE 3 THEORIES OF GRAVITY https://www.facebook.com/share/p/1FRHkFhhVt/>> <<@RM-xr8lq says : “7 levels of difficulty” > never goes past secondary school explanation>> <<@ВладимирИванов-р6л4л says : Why does mass bend the space around it?>> <<@ShokkuKyushu says : @MinutePhysics Question :does the escape velocity equation change when we talk about massive compact objects? The kinetic energy term of the equality cannot be (1/2)*m*v² ,(gamma -1)*m*c² is ,and is GMm/r² still valid?>> <<@leonardoaraujo8364 says : Este vídeo é uma bosta>> <<@anonymous-zero07 says : So nice.❤>> <<@redalert2834 says : You forgot the 8th level in which Einstein's 1939 paper explaining why black holes don't exist, which was ignored until the Covid pandemic, and still is ignored, is correct - resolving the non-existent black hole information paradox (amongst many other cringeworthy paradoxes associated with black hole spacetimes).>> <<@talonhackbarth7652 says : Slowly descends into madness>> <<@B_I_R_B1234 says : The title should be 'General Relativity Explained in 11 levels of difficulty'>> <<@SpacetimeTraveler-p4e says : Why is GR incomplete? Relativity describes the gravitational field have anything to do, necessarily, with quantum phenomena? Is electromagnetism incomplete because it doesn't describe the gravitational field?>> <<@mehdizangiabadi-iw6tn says : Where does Crow's gravity come from?>> <<@mehdizangiabadi-iw6tn says : The curvature pulls the object towards itself or makes it float>> <<@recessiv3 says : Why does quantum entanglement break locality but not causality if space and time are linked?>> <<@AjaySahai-y7o says : One math is based on Einstein, the other math is based on a guy who took Acid to derive the wave function equation (Schrodinger). Thats probably why you can't reconcile the two.>> <<@yoinch says : How do I turn off the sound?>> <<@kamal__6199 says : How would you explain it to a flat earth believer>> <<@PhysicsLiteracyforKids says : Thank you so much for all your work. I have used many of your physics videos for my classes. Little kids especially get a big kick out of them!>> <<@jotindersingh8559 says : Watched so many general relativity video. Never understood any of it. None>> <<@namonef says : I have a question. What is the importance of unifying QM and GR? I mean, spacetime and massenergy is two different things, right? So why do we need to combine them both?>> <<@tweedy151 says : someone explain the bit from 4.00 please. Particularly around 4.12 'the centre of the earth accelerates us away from that stright line path' - how does it? I keep thinking i get it then i don't again.>> <<@Fkd-About-Found-Out says : to unite general relativity and quantum mechanics you need to change the scale of the board, shrink down so a hydrogen atom is as big as a star, what would your universe look or feel like, even if it was an o2 environment you wouldnt breathe, you couldnt see normal wavelengths of light, would the universe be dark? or would the vibrating hydrogen atom look no different to a star, its electromagnetic wavelengths that were too small for us to measure could look just like normal photons and lightwaves thru a medium that wants to pull you in equal and opposite directions. What keeps things spherical even on those levels, spacetime being curved.. even on those levels spacetime curves and ripples with information.. id love to experience it for myself. Core from the north to south pole and jump in, you would find a weird point at the centre of the earth where the mass of the planet is pulling you out in equal and opposite directions. If you wasnt spherical you would spin like crazy.. but there is a Lagrange point right at the centre of our planet. not a gravity well.. not all things fall down, at a certain point there is enough mass pulling upwards, so why do we think there is a molten iron core again? Time dilates on those scales, when the universe was small and hot, if you slow time down it could be cool to an inside observer. It would seem hot and dense to us, but its just illusions of expanding spacetime, it would be expanding in 3d so it follows the inverse square law, the more it expands the slower time looks, relatively speaking.. Scale and perspective change everything, a day for a fly that only lives a day will feel far different too the 100 year life we get, imagine your whole life is one day, you would swear it was always sunny.. we have a limited perspective, trying to understand the universe at 1 atmosphere and thinking about 70f or 20c is the normal for things in the universe. Change the pressure and density of the universe and different elements are stable, how can we judge how old the universe really is when we cant visualise how time dilates with the universe as a whole.. i bet if we figure that out we can make cold fusion happen, making fusion happen at room temperatures and pressure, now thats your holy grail, not dyson spheres, solar freeking roadways in space.. manipulating the fundamental forces like salting water to lower its melting point.. Radioactive decay is like water evaporating, its all probabilities. Once you get into a certain temperature it becomes inviting to evaporate, just how if the universe was a little warmer, lead wouldnt be the last stable element.. at the current pressure and temperature lead is where mass freezes and is no longer wanting to evaporate/irradiate.. but its all just energy fields and probabilities on different scales and perspective.. Watch clouds roll into a mountain like waves on the shore, just speed them up, watch the earth flow, just speed it up really fast, there is a layer of reality that changes what you might consider to be solid liquid or gas. just speed things up or slow them down, its all frozen if you go slow enough.. who says what the tick rate of the universe is. Zoom out it looks like an alloy or foam, how could we know what is really out past our reality, maybe this is all happening in a luke warm glass of water in some dudes flat, 6 billion years was just 2 weeks, but lucky he was a slob eh...>> <<@dougkenny6548 says : This video made things as clear as mud.>> <<@anwvererere says : boy how i miss seeing those Kristoffel symbols from uni :D ahahahahhaha. Jesus. Fuck tensor calculus !!>> <<@robertwilsoniii2048 says : Penrose and Hammeroff's Orch OR is a pretty good candidate for a theory of everything. Where gravity causes an objective (probabilistic) collapse of superpositions in space(time), as Epicurus predicted in ancient Greece, these objective "chance swerves" explain conciousness (electron oscillations inside nueronal microtubles) and why all things don't free fall -- in other words, there is (and always has been) a connection between gravity and superposition. Namely, that g-forces snap superpositions into one (inertial) position in the same way that wings of a plane snap people up and keep them flying in the air rather than free falling.>> <<@robertwilsoniii2048 says : Flat space does not make sense. You cannot make or find any truly flat or straight materials anywhere in the universe. Perfect squares are not physically possible.>> <<@mrslave41 says : 0:41 nonsense. debate me.>> <<@viswanathanm.p.1475 says : well that escalated quickly>> <<@Helen-l3Helen__pa says : Peek into the crystal ball: Binance CEO’s exclusive interview about future developments>> <<@jeremynicoletti9060 says : This is not helpful...>> <<@alejrandom6592 says : Well that escalated quickly>> <<@pannkakan1986 says : What>> <<@teho1536 says : I love that level 0 is essentially 'General relativity is a thing.' And level 2 is already way past anything we get taught in school.>> <<@user-iksd0713 says : 내가 고등학교 때 습득한 과학지식은 우주공간은 원자로 이루어져 있으며 완전유전체 물질수지공간이다 질량보존의 법칙이 기본법칙이다 중력 빅뱅 배경복사 팽창 등 아무것도 일어나지 않으며 원자 자기력으로 움직인다 이것이 암흑 에너지다 자기장이 있는 물질이 회전을 하게 되면 내부의 압력으로 열이 발생하면 지구의 용암 태양의 홍염 코로나 태양풍 흑점과 같은 현상이 일어나고 자기장은 자기장의 가두기로 타고있으며 블랙홀의 중심은 메타물질과 같은 암흑물질이 생기며 폭발은 없으나 폭발하게되면 극지방으로 빠저나간다 그리고 달과 화성에 운석의 충돌 흔적이 많은 것을 보면 자기장의 차이이며 제 역할을 할때는 운석을 밀어내나 역전현상이 생기면 생기면 이어진다 공룡의 멸종을 부른 운석의 충돌은 자기장이 자전축의 변화로 일어나고 동식물의 진화에서 동물의 진화는 난활의 시작이 진화를 보여준다 동물극과 식물극의 차이로 동물의 진화는 결정된다 공룡의 알은 노출된 것으로 나와 있으며 그러면 털이 있어야 부화를 할수있으나 복원된 공룡이 털이 있는 종류는 하나도 없다 인류의 진화는 유인원에서 시작된 것이 아니라 인 류라는 고유의 종에서 시작된 것이다 유태반류의 높은 지능을 가진것은 유태반류의 특징이며 지구상의 최고의 포식자로 자리매김한 예를 보여준다 인류의 영양상태가 좋아진시기는 녹색 혁명을 맞이 하면서 영양상태가 좋아진 것이다 그리고 식인풍습 근친혼은 근대에도 행해졌으며 이러한 결과는 유전병을 달고 살았으며 유골로만 판단하는 것은 오류다 흰머리 스트레스 멜라닌 과산화 수소 이것은 흰머리가 나는 주요 원인이다 그러나 이것은 면역과 효소에 의한 것이며 그러나 인간의 의학은 원인만 알지 과정과 결과는 모른다 면역과 효소가 어떻게 일어나는지 서술하지 못한다 스트레스도 쥐를 통해서 가스와 전기자극으로 스트레스를 주면 모든 자손들은 유전된다 식물이 광합성을 하면 영양분이 대부분 토양에 뿌려진다 뿌리의 ARF7 물질을 제거하면 수분을 감지하지 못한다 이것은 화학 반응과 화학물질의 작용이다 이것도 설명하지 못한다 동식물은 꼬리없는 정자와 꼬리있는 정자로 수정을 하며 어류는 부유성 어류는 성전환을 하며 저서성 어류는 난활때 성이 정해진다 성이 정해질수 빡에 없는 이유가 있다 그러나 답은 서술하지 못한다 양자 역학의 스핀은 전자기파에 의해서 영향을 받으며 중첩과 얽힘에서 얽힘은 반물질이며 전하를 계산할수 있다 입자성과 파동성을 동시에 볼수있는 것이 핵연료 수조의 제어봉의 푸른빛이 나는 현상이다 서양의 불확정성의 원리와 같은 서양의 보이지 않는 미적분의 양자 역학이 아니라 동양의 동양 철학의 무극이 태극이요 태극이 무극이요 란 팔괘에서 시작 되면서 보이는 양자역학 미시적인 양자역학 거시적인 원자 자기력을 보여준다 양자 컴퓨터는 원소와 원리를 알아야 할것이다 일반 컴퓨터도 양자 컴퓨터의 효과를 낼수있다 이것뿐만 아니라 인간이 만든 최고의 폭발물은 원폭이다 과거의 원폭은 우랴늄이 주원료로 사용된 것이라면 현대는 기폭제만 우랴늄이고 주원료는 수소다 이것은 우랴늄 기체 폭탄에는 수류탄 급이다 아르곤 가스가 우랴늄 기체다 여기에 두 종류의 기체를 첨가하면 독특한 반응을 보이는데 수소가 소진할때까지 반응한다 그러나 기체와 반응은 서술하지 않는다 초전도체라는 이론이 나온지 백년이 넘어도 물리적특성도 개념도 모른다 오비탈이 0이고 전기저항이 0이다 이를 수용하는 물질이 우랴늄염이 있다 프라즈마 초전도체 우랴늄염 지구의 내핵 용암 자기장이 같은 현상이다 이 현상은 모든 결합과 반응을 통칭한다 그러나 설명하지 않는다 한 나라의 국방은 항공모함에 달려있다 이 항공모함의 제일 큰 비중은 캐타펄트이며 수증기식이나 전자식이나 문제가 많다 제일 적은 비용으로 할수있는 방법이 폭약식과 유압식이다 그리고 추진기의 기술은 보여주지도 않는다 그 이유는 추진기를 보면 음파를 알수있다 그러나 추진기의 조와저항을 감소시켜 음파를 줄일수 있다 이것도 제대로 된 반잠수정에는 무용지물이다 이 같은 자료가 5년 동안 얼마나 남의 손에 들어 갔는지 모른다>> <<@ninjxxitty says : except. if time has a new dimension each moment. is that really just plus ONE dimension? because then you have another moment and another and another. i guess if you believe the past and present dont really exist then thats fine. but if you believe in the more radical theories like time travel well its not really 3+1 then is it? more like 3 dimensions of space in a time continuum>>
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