Пікірлер

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  @aerospacedoctor8 сағат бұрын

  That is not the Coanda effect, the Coanda effect is the viscous entrainment of fluid by a jet of the same fluid moving through it. What you are describing is call the continuum hypothesis, and it says that a fluid contains no voids, because it they did, there would be a pressure gradient which would force fluid to fill that void. By this logic, a wing could never stall. Also, this is a pseudo ski effect illustration that suggests the molecules of air below the wing bounce off the wing and are forced down. This is also a misconception. Finally, the flow pattern shown with the air flowing downs at the angle of attack would predict that lift is proportional to the sin of the angle (while if molecules bounced off the bottom it would suggest a sin square relationship). Sadly, the coefficient of lift varies linearly with the angle of attack, until stall! Hence, this is falsifiably wrong!

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  @davidpartridge78662 күн бұрын

  In what universe… would any person actually understand this person at this sheer rate of complex and reductionist concepts

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  @Jeshua17375 күн бұрын

  Hence, Anti--FE It's, Unobjective Incorrect Claim Unattributed To The Actual Fact

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  @sissyfus6181Күн бұрын

  Incoherent sentence. Guessing your brain is the same.

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  @Lexi2019AURORA5 күн бұрын

  Is it yrue that sometimes the pendilums would rotate in opposite directions at a time in different parts of the world within the same hemisphere? Eric Dubay said it, so the answer is probably no.

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  @sissyfus61815 күн бұрын

  Total horseshit. The pendulum procession varies as a function of latitude. 24 hours at the poles, no procession at the equator. Procession is clockwise in the northern hemisphere, ccw in the southern hemisphere. The experiment or demonstration done countless thousands of times since the 1850's. Erick doobious counts on his followers to be brainless twits. As you said the answer, no surprise, is no.

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  @annoyingbstard94076 күн бұрын

  Some of the wind “pulls the wings up.”……how does that happen then? 😂

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  @cabbage_cat7 күн бұрын

  Thanks for the short explanation

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  @icaropratti95277 күн бұрын

  Flat earthers also agreed that the earth is circular and rotating. A plater can be flat, round and spinning. So the experiment also works for flat earthers

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  @sissyfus61817 күн бұрын

  No, it does NOT! The pendulum processes as a function of the latitude of its location. It takes 24 hours at the North pole. It doesn't process at the equator. It takes 24 hours at the South pole. It processes clockwise in the northern hemisphere and ccw in the southern hemisphere. Impossible on phflat erf.

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  @2112121129 күн бұрын

  I'm not French, but "Old France" and the "French" people are dear to me. Many others feel the same. The whole world can hate France and we won't waver. Does one quit loving his brother when he makes a mistake? France's politics is very much in the same space as the USA's. The classic left has moved to the far left pushing many right, center, and left to the "far" right.

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  @sissyfus61817 күн бұрын

  But what does any of your comment have to do with this video or Foucault's pendulum??

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  @tangoapalermo11 күн бұрын

  I'm sorry but this is wrong! At 0.49 you say that the pendulum at the North Pole would continue to swing in its plane while the earth beneath it would spin.This is not true because the pendulum has the same rotation speed as the Earth and would rotate with the earth. Instead the movement of the pendulum is justified by the fact that at its maximum height it has a greater distance from the earth's axis and therefore a tangential speed greater than that of the earth

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  @tangoapalermo11 күн бұрын

  coriolis effect

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  @sissyfus6181Күн бұрын

  "This is not true because the pendulum has the same rotation speed as the Earth and would rotate with the earth. " Wrong, this has been clearly demonstrated. You are just denying reality.

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  @user-ql8uw4zs2f12 күн бұрын

  nice trousers

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  @zhangwei462214 күн бұрын

  This is too confusing. I'm just going to accept what flat earthers and the Bible tells me without question.

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  @jeffreyerwin366515 күн бұрын

  Bernoulli applies to the flow and pressure of a fluid that travels through a pipe of varying diameters. A sail is an airfoil that produces lift, yet it has exactly the same length on each side. Newton's laws of motion fully explain the pressure differential between the two sides of the sail without any help from Bernoulli. And there is no "constriction" on the lee side of a sail.

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  @aerospacedoctor9 сағат бұрын

  Jeffrey, Bernoulli is used in external flows as well. When we teach aero students to first model aerodynamics, we use potential flow with circulation to get the velocity field. We then teach them to get the pressure field by using Bernoulli to convert the velocity at every point in the flow to the pressure at every point in the flow. I have no idea why people, even aero academics, make this claim. Literally look at MATLAB code that does potential flow around an aerofoil, and you will literally see a line of code that is Bernoulli! Also, you appear to be forgetting that air has inertia (mass) and hence takes time to move out of the way, so there are technically constrictions, but this is an effect not a cause. Finally, Newton's laws as written by him and Euler do not explain what is happening, you need the full Navier-Stokes equations.

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  @jeffreyerwin36657 сағат бұрын

  @@aerospacedoctor Sir, Newton's law says that a body moving wants to to continue that motion unless some outside force is exerted on it. When the airstream encounters the sail, it is pushed by one side of the sail and pulled by the other side which causes a change in the direction of the airsteam. These actions result in a pressure differential. That differential is what we call "lift," and one does not need Bernoulli to explain it.

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  @aerospacedoctor6 сағат бұрын

  ​@@jeffreyerwin3665do note I did not say Bernoulli explains lift. I said even aerodynamicists are taught to calculate a velocity field and then use Bernoulli to convert this to a pressure field. The pressure difference is them integrated to give the lift. Navier-Stokes, the correct version of Newton's 2nd law explains lift, and it is due to viscosity causing a shed vortex and the associated bound vortex around the aerofoil. To be clear, viscous effects result in faster flow over the upper surface and slower flow underneath, then via Bernoulli you can infer a pressure difference.

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  @jeffreyerwin36656 сағат бұрын

  @@aerospacedoctor Sir, the distances on each side of a sail are exactly the same. therefore no difference in the speed of the airstream on ech side of the sail can be postulated.

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  @aerospacedoctor5 сағат бұрын

  @@jeffreyerwin3665 Jeffrey, that is simply not true. You can do simulations and show the difference in velocity. The concept of circulation was well established over 100 years ago. The idea of adding a circulating flow field to the potential flow solution is the standard way this is taught in basic aerodynamics to aerospace engineers. That potential flow solution has a symmetric velocity field, and hence when you add it to the circulating flow, the combined result is faster flow over the top as the flows add together, and slower flow underneath as the flows subtract (a circulating flow is going around the aerofoil). There are countless resources, even the basic wikipedia entry that covers this. What engineers tend to miss in their explanation of this is what is causing the circulation, and that is viscosity.

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  @psbates16 күн бұрын

  You were right about everything...until the last bit about the charts. Kessel is a planet that exists near a large collection of black holes called "The Maw". If you got too close to The Maw, the black holes would drag your ship in and you would be dead. But how close is "too close"? It depended on the mass and speed of your ship. Imperial ships were large and therefore couldn't get as close as the small smuggling ships, which is why the Kessel Run would bring the smuggler as close as was dared to The Maw. But the closer the smuggler gets to the gravity of the black holes, the faster his ship needed to be to escape the gravity. Han Solo's brag was NOT a mistake; he was saying his ship was fast enough to shortcut the Kessel Run down to only 12 parsecs (i.e. closer than anyone else) and still escape The Maw's gravity.

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  @redline922116 күн бұрын

  But how can a keel generate lift left and right depending on circumstance? Airplane wings are shaped to provide vertical lift always

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  @NoESanity19 күн бұрын

  so basically. by tricking the fans with science, we can convince the air to grab a bunch of their air buddies and get them into a huge pyramid scheme of cooling off my balls.

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  @driptcg20 күн бұрын

  Thank you for the explanation, I was wondering how a certain event happened in Jojo part 7.

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  @RabbitholeIsrael22 күн бұрын

  why do the pendullum stop swinging or swing in opposite direction with solar eclipses?

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  @stuartgray587722 күн бұрын

  They do not.

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  @RabbitholeIsrael22 күн бұрын

  @@stuartgray5877 yip, the pendullum is fake. they create the swing. They admitted to it already.

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  @sissyfus618121 күн бұрын

  @@RabbitholeIsrael "they create the swing." Care to elaborate?

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  @sissyfus618120 күн бұрын

  Stay in your lane and your buybull bs. Coward.

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  @tjjones62120 күн бұрын

  Laser level test done by a space denying flatearther confirmed Foucault's pendulum. Thanks Bob, rip.

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  @GHOSTEGJ23 күн бұрын

  keep posting mate you were doing great ! love your videos

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  @snowdogthewolf25 күн бұрын

  I feel like an enlightened idiot. I'll take what I can get, subscribed!

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  @tresatlantes28 күн бұрын

  all u got is an animation 😂😂😂 that doesn’t work in real life, unless you push the pendulum by your own force to make it swing LOL

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  @sissyfus618128 күн бұрын

  "unless you push the pendulum by your own force to make it swing " You really didn't get the point, did you kid? The precession of the pendulum varies as a function of its latitude. Why would you make such an utterly ridiculous comment?

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  @tjjones62120 күн бұрын

  Wow, talk about adding nothing to the conversation...

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  @tresatlantes20 күн бұрын

  @@tjjones621truth hurts doesn’t it 😂 animation man 😂

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  @sissyfus618120 күн бұрын

  @@tresatlantes "truth hurts doesn’t it " The truth is Foucault's pendulum has been done thousands of times around the globe with and without motors for more than 150 years. I did one in my teens. You don't even understand the first thing about it: "unless you push the pendulum by your own force to make it swing ". You're just embarrassing yourself and too dumb to see it.

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  @tjjones62120 күн бұрын

  @@tresatlantes yes, my sides are sore from laughing at you guys... lol ouch!

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  @d0jimaАй бұрын

  hahaha, never have I seen a video go from useful to incomprehensible so quickly.

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  @labuck9013Ай бұрын

  Somebody please explain how a pilot lands an airplane on a spinning ball rotating at a jaw dropping 30 km/sec (as calculated and accepted by big Al E)

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  @tjjones621Ай бұрын

  pilot and plane are already moving along with earth as it sits on the runway ready to take off. Is Google down?

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  @sissyfus6181Ай бұрын

  How did you come up with 108,000 km/hr????

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  @Lugor9629 күн бұрын

  Earth rotates 15 degrees per hour that's twice slower than a hour hand on a clock. Plane when taking off conserves momentum of he Earth witch is super slow (15 degrees per hour).

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  @bafrali556123 күн бұрын

  Same way two people played tennis on a plane.

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  @labuck901320 күн бұрын

  @@tjjones621 soooo 3 thumbs up.... the question is again Please explain how a pilot lands an airplane on a spinning ball rotating at a jaw dropping 30 km/sec

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  @wutugotyoutubeАй бұрын

  pls come back

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  @wutugotyoutubeАй бұрын

  cool

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  @OzgurY-it3rlАй бұрын

  Thank you very much for this perfect video ♡

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  @robm-dz7woАй бұрын

  nice video - just noticed the Fe + 3O2 equation doesn't seem correcly balanced

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  @AndySmith4501Ай бұрын

  So typically, a focault pendulum is attached to the ceiling. So are we saying the floor beneath it is turning independently. That makes absolutely no sense. The earth doesn't turn underneath a hovering helicopter

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  @stuartgray5877Ай бұрын

  - "The earth doesn't turn underneath a hovering helicopter" Because when the helicopter lifts off from the ground it has the SAME "MOMENTUM" as the ground. If you get up on an airplane going 500 MPH and JUMP in the center aisle, do you SLAM AGAINST THE REAR BULKHEAD? If you don't see how my question relates to yours then you should just stop asking physics questions as you will never understand.

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  @sissyfus6181Ай бұрын

  "That makes absolutely no sense." Only to you and other uneducated denialist flerfarinos. When are you going to delete this thread?

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  @stuartgray5877Ай бұрын

  @@sissyfus6181 - "When are you going to delete this thread?" When we explain that People should bother getting an education BEFORE arguing basic physics with Engineers?

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  @tjjones621Ай бұрын

  No. The ceiling and floor are both moving together. How can you be confused about this???

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  @AndySmith4501Ай бұрын

  @@tjjones621 I'm not confused, but in the Focault claim, the floor is moving independently of the pendulum, despite being in the same frame of reference. Using that logic, a helicopter could hover and observe the earth turning beneath

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  @issiedorenbush875Ай бұрын

  Watch a few videos and this is the best. Thank you.

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  @PacifictheoryАй бұрын

  I'm sitting here waiting for a fishing boat and I'm looking at a sailboat and wondered how this thing works. This guy 100% explained it in the easiest way to understand possible. What a great video explanation.

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  @liftingtheveil8361Ай бұрын

  So how does that work when it is supposedly rotating with earth? It is easy to see that the earth is level and stationary and that it is the sun that is moving by taking an individual photo of sun spots each hour from "sunrise to sunset". Unless earth goes backwards and forwards then stops it's not rotating.

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  @sissyfus6181Ай бұрын

  This is about Foucault's pendulum. Take your spots elsewhere.

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  @stuartgray5877Ай бұрын

  we measure earth rotation using fiber-optic gyros tens of thousands of times a day worldwide as the pre-flight test of modern aircraft.

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  @liftingtheveil8361Ай бұрын

  @@stuartgray5877 A gyro that only works on a flat plane? I suggest you take some footage of sun spots over the course of the day to see for yourself that unless earth goes backwards and forwards then stops hours before the sun "sets", it's not a rotating sphere.

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  @stuartgray5877Ай бұрын

  @@liftingtheveil8361 - "I suggest you take some footage of sun spots over the course of the day to see for yourself that unless earth goes backwards and forwards then stops hours before the sun "sets", it's not a rotating sphere." And I suggest YOU at least complete HIGH SCHOOL: before calling all Engineers and Physicists to have ever lived a bunch of idiots. For example, what about all of the Aerospace Engineers that build and launch Satellites and deep space science probes for a living?? Are ALL of them being fooled and are really building FAKE satellites but don't realize it? What about the scientists that build satellites that study the sun directly? Are they IN ON the hoax or all too stupid to realize they are being fooled. All while YOU figured it out? Yeah, that seems reasonable. Tell us you graduated high school as a start.

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  @stuartgray5877Ай бұрын

  @@liftingtheveil8361 - "A gyro that only works on a flat plane?" No, they work everywhere including deep space. We have tested them there. Now ANSWER THER QUESTION HOW do we perform a measurement tens of thousands of times a day EVERYDAY that says the earth is a rotating sphere?? Are ALL of those gyros "Lying"? Because what I say IS a "FACT". I have been performing this measurement as part of my JOB of the last ~30 years which I SUSPECT is longer than you have been alive. EXAPLIN this fact or admit you cannot.

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  @migotauerredpilladometedor4818Ай бұрын

  "how bladeless fans work?" they have blades.

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  @timothkeyypriceАй бұрын

  Thank you. Flat Earth fanatics drive me nuts. Ask them why the circumference of Antarctica is only 11,200 miles but their imaginary FE ice wall would be 60,000 miles. They refuse to even address this, as this completely destroys their FE nonsense. Insane.

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  @stuartgray5877Ай бұрын

  And when you tell them there have been MANY boat races AROUND Antarctica, they will just respond with a highly convincing "Nu-Uhhhhhh!"

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  @sissyfus6181Ай бұрын

  @@stuartgray5877 Not only that, the races have used tracking documenting where they are at every second of the race. Which has facilitated rescue when one of the boats sink. All documented beyond belief. All they have is denial of fact.

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  @tjjones621Ай бұрын

  Ask them to show you Antarctica on the map they use for turn by turn directions... They will pee a little in their pants... LOL

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  @stuartgray5877Ай бұрын

  @@tjjones621 A spacecraft I helped build and launch takes photos of the entire continent of Antarctica every 90 minutes. This is JPSS-1, now known as NOAA-20. My company built THREE of the spacecraft in the "A-Train". look it up genius.

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  @AnarMmmdov-px9ecАй бұрын

  I thought that the Earth is circle or egg-shaped and etc, but not flat. Nearly all scentists say this but it is still a debate. As a result of it i have doubts that is the Earth really flat?

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  @Zatarra69Ай бұрын

  This was such a great explanation. I'd love to hear more about what the maximum speed this can propel a vessel is, since the relative wind speed increases as the ship speeds up. Why can't you theoretically generate infinite momentum from this?

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  @martintekulaАй бұрын

  This video is crap

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  @sissyfus6181Ай бұрын

  Explain how the period of the precession varies as a function of latitude. All you've shown is that you're too dim to follow a video. I'll double down and say you have no high school science or math and your employment prospects are as dim as you are.

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  @tjjones621Ай бұрын

  We don't care what you had for lunch, poop breath...

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  @jusukapasАй бұрын

  the things i need to learn for my dnd campaign...

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  @PromoJetAusАй бұрын

  Hi Guys - great video style - can you please tell me what software you used? I am interested in creating as well and looking for the best solution. THANKS

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  @RealryordieАй бұрын

  This Holly weird cgi theory is more mental gymnastics to trust the scienc math…explain to me why the focault doesn’t work on the equator and southern hemisphere

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  @stuartgray5877Ай бұрын

  It works just fine in the southern hemisphere. It does not work at the equator because there is no rotation of the earth about the axis of the Pendulum at the equator. So, you DIDNT watch the entire video.

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  @RealryordieАй бұрын

  @@stuartgray5877 nah I had to stop watching this looney tunes bill nye geaye shi and it doesn’t work in the southern hemisphere there’s plenty of examples where they’ve tried in Argentina Brazil etc and does not work…if it calculates the axis of earths rotation how come it does not change during a polarity shift?

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  @stuartgray5877Ай бұрын

  @@Realryordie Sorry but you MUST be a five-year-old pretending to be a grownup. Does mommy know you are on the computer?

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  @RealryordieАй бұрын

  @@stuartgray5877 and the globetard opts for rhetoric well played Chad

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  @stuartgray5877Ай бұрын

  @@Realryordie So is it "rhetoric" if I explain to you that I have been measuring earth rotation and curvature as part of my JOB for the last ~30 years? I test fiber-optic gyros before installation into a vehicle. We use EARTH ROTATION as the stimulus.

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  @jeffreyerwin3665Ай бұрын

  The lift vector for the keel is wrong. The keel can only produce lift at an angle that is 90 degrees from its cord. There is no way that the keel provides lift in a forward direction. This video could be better in terms of a more accurate vector analysis for the lift vector produced by the sail and the lift vector produced by the keel.

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  @jameseves92092 ай бұрын

  Complete nonsense and lies ..... the 235 lb brass pendulum is electronically controlled using magnets with a "carefully timed kick " as the company states to "keep the pendulum in motion ". Look it up yourself. Academy Pendulums - Mark II Foucault pendulum assembly pdf.

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  @stuartgray5877Ай бұрын

  Yes, but the "kick" only keeps it swinging it does NOT help it rotate. We literally measure earth rotation tens of thousands of times a day worldwide using fiber-optic gyros.

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  @jameseves9209Ай бұрын

  @@stuartgray5877 I see you're the resident shill, posting the same nonsense over and over in the comments. Lol.

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  @stuartgray5877Ай бұрын

  ​@@jameseves9209So something I have been doing hands-on as part of my job for the last 30 years is "nonsense"! Look it up yourself genius. Sagnac Interferometers have been measuring earth rotation for about 100 years now. But what would an electrical engineer know about the propagation of light?

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  @awattАй бұрын

  ​@@jameseves9209 Prove the earth is stationary. Go

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  @jameseves9209Ай бұрын

  @@awatt the Michelson Morley experiment proved the earth was stationary in 1887. Now prove the earth is spinning. Go

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  @bernadettedavid232 ай бұрын

  The flat earthers in the comments are making my day lol. It’s round, people. It’s round 🤦‍♀️

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  @shirfree2 ай бұрын

  why does the initial reference frame not work for the pendulum?

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  @rocketman4842 ай бұрын

  I believe you mean "Inertial"

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  @shirfree2 ай бұрын

  @@rocketman484 do you know?

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  @stuartgray5877Ай бұрын

  @@shirfree Because existing on the surface of the earth is NOT an "Inertial Reference Frame". You are under the acceleration of gravity.

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  @shirfreeАй бұрын

  @@stuartgray5877 you are spinning with the earth though, so relative to the earth you are not spinning

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  @stuartgray5877Ай бұрын

  @@shirfree Sure. So that IS a "rotating reference frame" and if you are using coordinates within that frame then your coordinates do not indicate any type of spin.

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  @dilin2 ай бұрын

  Very helpful video!

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  @hvacdr2 ай бұрын

  can you believe ppl were stupid enough to pay 2, 3, 400 dollars for these things back in the day now they undesired and cost 30 dollars with a 5,000 mah backup 4/8 hour battery. lol. i do believe in this brushless motor technology tho I am seeing a company called Dreo selling some pretty nice fans between 28 and 23 decibels CFM ratings like 250, 350, 1,050 CFM in very small fans with only 6, 7, 12 inch blades. I dont know how true it is that their little fan blows 1,050 CFM not that i dont doubt it but thats literally over 2.5 tons of air movement the kind of air movement you would see in an entire 1130 sq ft house. Im about to buy one and find out.

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  @JohnHenry-nd8oz2 ай бұрын

  This only proves the earth is non-rotating and flat. Take this from the manufacturer, Academy Pendulum Sales. This can be found on their website under "For Architects: Design Specifications" pdf Each pendulum kit contains the following; 2, A magnet drive system to keep the ball in motion. 3, An electronic control system to operate the magnet, and control the swing distance of the ball. The control system contains two parts. The control panel and the logic panel. (Electricity) My comment: This device requires a an electromagnet with a logic controller to keep the pendulum swinging. This "pendulum" only proves the earth is flat and non-rotating. The magnetic "drive system" keeps the ball rotating in motion and "SIMULATES" the earths rotation. FAKING the earths rotation is what it is actually doing. Thus the complicated cone rotating drive system. Under "Troubleshooting Guide": "Pendulum control adjustments:" Start the ball swinging and turn on the power, meter and tone switches. A tone will sound whenever the ball passes the center of the pit (as power is then applied to the magnet)." "The Amplitude Control should be adjusted to obtain the swing distance desired. Be sure the swing is far enough for the armature O’rings to contact the magnet. " "Pendulum swing gets shorter and shorter then stops. It is important for the armature O’rings to contact the magnet at the end of each swing. Failure to make contact will cause the pendulum to slow and eventually come to a stop." 🤣😢

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  @stuartgray58772 ай бұрын

  No sorry. The Gyrocompass uses the rotation of the earth to find true north. AND Most modern aircraft test the onboard fiber-optic gyros before a flight by: MEASURING EARTH ROTATION. Now go back and finish high school so you can come up to speed with the rest of society.

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  @sissyfus61812 ай бұрын

  So explain all the non "powered" pendulums. Explain how the period of the precession varies as a function of latitude. All you've shown is that you're too dim to read an operation manual.

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  @gwjsbm2 ай бұрын

  What about the homemade ones? A teacher in my school showed my brother how this works with a bowling ball.

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  @Landoparada3602 ай бұрын

  According to your claims, we could suspended ourselves with an air balloon 🎈 and wait for China to arrive under us, right.

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  @stuartgray58772 ай бұрын

  NO you just don't understand basic physics.

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  @Landoparada3602 ай бұрын

  @@stuartgray5877 then you should explain why if the earth is spinning under a pendulum and not a stationary balloon , drone, or helicopter?

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  @stuartgray58772 ай бұрын

  @@Landoparada360 perhaps you could complete a high school physics class BEFORE Insulting every engineer and physicist to have ever lived?

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  @Landoparada3602 ай бұрын

  @stuartgray5877 so you don't know how to explain a simple question, instead your insults are evidence of your ignorance

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  @stuartgray58772 ай бұрын

  @@Landoparada360 Your personal incredulity is proof of only your willful ignorance. Translation: Finish high school BEFGORE calling all engineers and physicists a bunch of morons.

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  @SolWake2 ай бұрын

  Just starting my beginner sailing class soon. Finally the explanation I needed! Thank you!

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  @Eileen81352 ай бұрын

  Observation virtually collapses the statistical wave function of the electron and reduces it to a particle. It's as if the electrons feel the will to keep themselves in a certain position... Now move on to quantum...

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  @picklesarefortheweak49812 ай бұрын

  I grew up on a sailboat and my dad always taught me to point my nose into the sea highways (the lines made by wind pushing on the water). I always used the water to determine where my nose should be and how to adjust my sail. explaining that to ANYONE never made sense, but now I can just show them this haha

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  @user-qd4yc4vf7c3 ай бұрын

  Yes, yes, yes, the airplane is “ lifted” airborne not sucked airborne. Newton’s 2nd and 3rd laws apply.