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The pendulum's 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. How does that work on your model? Oh yeah, you ain't got a model! The experiment or demonstration has been done countless thousands of times since the 1850's. You're quote mining Einstein, as you flaturd shysters do. So basically lying. Why do you twits always do that? Grow up.

- "when he claimed that no terrestrial or optical experiment can prove the motion of earth." Einstein was wrong. We have been measuring earth rotation and curvature using fiber-optic gyros since before you were born. I do this as part of my job as an Aerospace Test Engineer of almost 30 years. I test FOGs before installation into a vehicle by measuring earth rotation.

@stuartgray5877 lmao. The Sagnac Effect is the aether in motion , just like Sagnac claimed. If not , MMX would have found the proper fringe shift , not 20% of the predicted value. As Dayton Miller proved , the fringe is periodic and aligned with the sun and moon's position. This was confirmed by Galiuv and Wong in the 21st century with our most precise instruments. Oh , and Wong also proved linear motion can be measured with interferometry, and he patented a speedometer based upon his work. What that means is , Yes, Einstein was wrong , but only about everything he thought except that you can not measure Earth to be moving. And he was wrong about his reason.

@@Heracles_FE SO explain why most modern aircraft test the onboard fiber-optic gyros by measuring earth rotation. So its a HOAX by Honeywell and Airbus, and Northrup Grumman? I was trained to test the Litton LN-200 back in the 1990s by Lockheed Martin by measuring earth rates. I did that again with the Northrup Grumman SIRU which is a hemispherical resonating gyro. I tested another FOG, the Airbus Astrix-120. It also measures earth rotation. I have then tested the Honeywell MIMU just last year Again using EARTH ROTATION as the stimulus. So, am I LYING or am I just an incompetent aerospace avionics engineer?

@@Heracles_FE Research "ADIRU Alignment" on YT and on the Web. Tell me how over a dozen flight avionics companies are all in on the "hoax" where they PRETEND to test their fiber-optic gyros using earth rotation. That means these companies LIE to the FAA about how they test flight avionics before a passenger flight. Sure, that sounds like a reasonable thing to do.....

So you didn't understand a thing in the video. You have never done a Foucault's pendulum. You just wanna say "nuh-uh". You can't explain how the precession varies as a function of latitude.

The irony that you don't even know the difference between a plumb bob and a pendulum is pretty hilarious.

Sorry to break it to you but modern aircraft measure earth rotation as part of the pre-flight test of the fiber-optic gyros. So earth rotation and curvature is literally measured tens of thousands of times a day worldwide.

A Foucault pendulum on the other hand clearly demonstrates that the Earth rotates and is spherical. Flaturds can only say "nuh-uh" because they are so dim and uneducated. Math is particularly hard for them.

Can't hurt!

Jeffrey you must have accidentally deleted your comment... oh no, let me reply again. Bernoulli is also applicable in external flows, it is literally derivable from Euler or the Navier-Stokes, people just don't understand when you can use it. Outside the boundary layer, and if gravity is not applicable, you can use it. If the flow starts with the same total pressure, and it does not experience viscous losses, you can track the change in static and dynamic pressure, and hence always relate a lower pressure to a faster flow speed, and a higher pressure to a lower flow speed. So, yes, if there is a pressure difference on the two sides of a sail, there is a difference in flow speed.

Yeah, that is not very self evident and could be better explained.

Incoherent sentence. Guessing your brain is the same.

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.

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.

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

coriolis effect

"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.

@@sissyfus6181 I still question this myself. It is easiest to visualize while the FP is at the exact North Pole. When the pendulum is raised to begin the experiment, it will have a radius arm from the earth rotation point that is non-zero. SO before the pendulum is released it IS moving in a circular path. When you release it, it must still have some angular momentum from earth's rotation before the release. Why wouldn't it?

They do not.

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

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

Stay in your lane and your buybull bs. Coward.

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

"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?

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

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

@@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.

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

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

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

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).

Same way two people played tennis on a plane.

@@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

- "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.

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

@@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?

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

@@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

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

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

@@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.

@@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.

@@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.

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

@@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.

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

@@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.

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.

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

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.

@@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?

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

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

@@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.

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.

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

​@@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?

​@@jameseves9209 Prove the earth is stationary. Go

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