Gyrocompasses make use of very real Earth’s Rotation

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DataOverFlow2022

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #30 on: September 14, 2025, 01:54:30 AM »

Hey, I just thought of something….shouldn’t the gyrocompass read for South as well as North?

Not according to the right hand rule and how earth’s rotation produces torque on the gyrocompass.



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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #31 on: September 14, 2025, 02:45:53 AM »
Point to the magnetic center of Earth, there is no North or South poles.

That’s it

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DataOverFlow2022

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #32 on: September 14, 2025, 03:03:43 AM »
Point to the magnetic center of Earth, there is no North or South poles.

That’s it

Gyrocompasses work by making use of the earth’s rotation to produce torque on the compass to point north.  It’s how they are designed, made, and work. 

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #33 on: September 14, 2025, 04:41:52 AM »
They don’t read for North
Let me make this clear:
I don't give a damn what you want to say it reads for.
What matters is HOW?

Can you explain HOW they work?

shouldn’t the gyrocompass read for South as well as North? They’re both magnetic points on a ball
They don't rely upon magnetism.
Regardless, magnetism is a dipolar force where opposites attract, so if something points north it will point away from south.


All you are demonstrating is that you have absolutely no idea what you are talking about and are now desperately throwing out complete and utter shit in the hope it will make you seem smart.
But it backfired, and made you look like a complete moron that has no idea what they are talking about.


Point to the magnetic
Again, they don't use magnets.
And even if your pathetic BS was true, that is not an explanation.

That is just a statement of the observation.

Do you know one big reason why gyrocompasses are used?
Because all the steel on the ship can effect magnetic compasses.
So they need a compass which doesn't use magnetism.

So again, can you explain how they work?
Or can you just fling your own poop like a pathetic monkey in a zoo?

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #34 on: September 20, 2025, 05:47:10 AM »
Compasses use Earths center which is far more magnetic than steel of our ships.

To measure its magnetism thousand of miles away from it proves that

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Torve

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #35 on: September 20, 2025, 06:02:33 AM »
Compasses use Earths center which is far more magnetic than steel of our ships.

To measure its magnetism thousand of miles away from it proves that

A magnetic compass, which is what you are talking about here, detects and aligns with the direction of the Earth's magnetic field at the location of the compass. It does not return a measurement of the strength of that field or the core strength of the Earth's magnetic field, which is indeed formidable by all estimates, on the order of 50 times its surface strength.
« Last Edit: September 20, 2025, 03:41:51 PM by Torve »

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #36 on: September 20, 2025, 03:23:30 PM »
Compasses use Earths center which is far more magnetic than steel of our ships.
No, that is a regular compass.
One which is known to be affected by the steel of ships, which is why gyrocompasses were made, to avoid that.

A regular compass can be affected by a fridge magnet held too close.

Now again, stop talking about magnetic compasses and try talking about gyrocompasses.
Again, they rely upon the rotation of Earth to work. It has nothing to do with magnetism at all.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #37 on: September 23, 2025, 11:20:12 PM »
Answer what does a standard compass do, where it is used, where it cannot be used, where it works and where it doesn’t work. Why it’s shaped as a flat instrument instead of any other shape, and why it doesn’t work in any other shape but flat.

What is it measuring for as a flat standard instrument, for a single direction, for one and only one point on Earth?

The liars of a ball Earth fable, said that a compass isn’t flat for any reason at all, but it’s more of their bs claims again.

How does a compass work if it’s another shape than flat?  It doesn’t work if another shape of it is built or tried to build of it.

What are some types of instruments we have, or once had, and use today, being advanced instruments based on the earlier ones, and that we are trying to advance on them in future, yet every one of them, before or now or in future, must always have, is they have to be a specific shape or form of design, to use the same way, or at a certain place or location?

What is a gyrocompass shaped as a sphere for, is not going to be used on the surface of Earth, it cannot work on the Earths surface, only a flat compass can work on the Earths surface!

Why would you think they’re not based on the same magnetic measurement of one single point on Earth that standard compasses are built for, used for on the surface?

They spew on about how our standard compasses, used for centuries, and no other types or revisions ever existing for those centuries, were only very recently built as a revised type of compass, which will work exactly as those compasses used and work on the surface?

Because when we’re above the surface in air, within a plane, we are now ABOVE the magnetic point on Earths surface, which can only use standard flat compasses on the surface to measure and point towards it

So after we developed airplanes to fly in air, above the surface, we were also flying above the magnetic center point of Earths surface.

Do you start to see what makes Earths surface shape important and crucial to instruments like the compass?

The gyrocompass is shaped as a ball, because it has a 360 degree view of Earths surface, which means it must be an entirely flat surface over the entire Earth, to measure for the magnetic point of Earths surface below the planes in air above it.

That’s exactly what they’re a ball shape for, to measure over  the entire Earth, for its magnetic center point on the flat surface.

It’s strange that they didn’t use this instrument on planes from day one, but maybe it wasn’t developed yet?

Our flights used the same crucial instruments all those years before now, so what is this newly developed instrument going to do, which cannot be done by our other instruments on planes?

This instrument acts just the same way as an actual compass does, but never could work in air until now!

They’re airborne compasses, to measure for the magnetic center point on the surface.

They actually further confirm the Earths surface is a massive flat plane with one center point which is very magnetized.

Your excuse about how magnetic objects or magnetic source points must have two opposite poles on them- put your car under a magnetic crane and see it pull your car up into air, or if it can’t pull it up because it has an opposite pole on it!

You even said metals if ships can make a compass point to the ship instead of magnetic ‘north’. 

That made me wonder if the magnetic center is actually a metallic center point instead, and it would really make far more sense because it attracts magnetic materials when light enough in their mass.

That would explain why a very thin needle of minute mass thinly coated in magnetic material would point to a huge metallic point on Earths center, deep within the surface at one point.

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #38 on: September 24, 2025, 02:25:24 AM »
Answer what does a standard compass do
Considering this has absolutely nothing to do with the topic, WHY?
Considering it would work on a round Earth with the core being roughly a dipole, WHY?

The liars of a ball Earth fable, said that a compass isn’t flat for any reason at all
The absolutely pathetic liar here is YOU!
Let me remind you that you clearly emphasised how an instrument being ball shaped doesn't mean it is for a round Earth. Yet here you are pretending the sole reason a compass is flat is because Earth is flat, pretty much directly contradicting what you have said before, and blatantly lying about it to.

Not to mention that entire pathetic rant of yours is nothing more than a pathetic deflection from your complete inability to explain how a gyrocompass works in your delusional fantasy.

The only things in any way relevant are these pathetic BS claims of yours:
What is a gyrocompass shaped as a sphere for, is not going to be used on the surface of Earth
...
Because when we’re above the surface in air, within a plane, we are now ABOVE the magnetic point on Earths surface
...
This instrument acts just the same way as an actual compass does, but never could work in air until now!
...
They’re airborne compasses, to measure for the magnetic center point on the surface.
They weren't used originally because they weren't invented yet. A normal magnetic compass works just fine in the air, and worked in airplanes which were mainly made of wood.

Meanwhile, gyrocompasses are also used in ships, large metal ships.

You can also compare a gyrocompass and magnetic compass and see they don't point in the same direction.
You can also bring a magnet nearby and see the magnetic compass is affected by the gyrocompass isn't it.

i.e. you are wilfully lying to everyone yet again.

That is also the answer to this pathetic BS of yours:
Why would you think they’re not based on the same magnetic measurement of one single point on Earth that standard compasses are built for, used for on the surface?
Because magnets don't affect them. And because that claim of how a magnetic compass works is pure BS as well. They align with the magnetic field. Not magically get drawn towards the centre.

So how about you stop with all the pathetic BS and instead clearly explain how a gyrocompass works in your delusional fantasy.
Stop deflecting with pathetic BS.
« Last Edit: September 24, 2025, 02:31:24 AM by JackBlack »

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #39 on: September 26, 2025, 10:43:04 PM »
Why would standard compasses not follow Earths rotation if gyrocompasses do in air?

Compasses are also in air too, held above the surface, just lower in air than in planes!

You’ve already claimed that everything in air, balloons and planes for example, are held by your made up force within air, and the air and all things in air are rotating with the ball Earth below them all, right?

But now you’re trying to claim that planes ARE NOT rotating with the rotating air above the rotating ball Earth?  You can’t have it both ways, if planes aren’t rotating within the rotating air above the rotating ball, then nothing can be rotating in air, not just planes because you say they use an instrument to measure for the Earth ball rotation within air!

Planes have more metal than our old wooden ships did, and they used compasses to sail the whole world, and napped it as flat, with a massive ice wall encircling the Earth within it, holding in the waters of Earth.

Your own claims conflict with one another, because both are nonsense.


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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #40 on: September 26, 2025, 11:56:40 PM »
Why would standard compasses not follow Earths rotation if gyrocompasses do in air?
Because a standard compass uses magnetism. So it can be affected by things like metal ship hulls.
A gyrocompass is based on rotation.

This is not hard to understand.

You’ve already claimed
No, YOU have made up a pathetic strawman, putting words in other people's mouths to blatantly lie about them and the RE model.


Now again, stop with all the pathetic BS and explain how a gyrocompass works in your delusional fantasyland.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #41 on: September 27, 2025, 01:48:23 AM »
You’ve not addressed your conflicting claims here.

You’ve claimed that when up in an air balloon fixed in one position, the surface below us doesn’t appear to rotate, because the air is also rotating with Earth below, and all things within air are also rotating in air with Earths rotation!

Planes would also be in air and rotating with Earth, same as us in an air balloon!

Planes wouldn’t be adrift from the rotation, if the air and all things in air are following that very rotation of Earth, and that’s what you claimed.

You go along and believe whatever else they tell you about this or that, being for the ball Earth, that this instrument is on planes to account for drifting off Earths rotation on flights…

Never having any clue about what you’ve already said about things in air rotating with Esrth!

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #42 on: September 27, 2025, 02:49:40 AM »
You’ve not addressed your conflicting claims here.
You mean I haven't addressed your pathetic strawman?
The one you keep bringing up because you can't explain how a gyrocompass can work in your delusional fantasy?

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #43 on: September 27, 2025, 03:03:15 AM »
You’ve not addressed your conflicting claims here.
You mean I haven't addressed your pathetic strawman?
The one you keep bringing up because you can't explain how a gyrocompass can work in your delusional fantasy?

Right, after you said the air and everything within the air rotates with the Earth as one, yet now you change your argument by saying that planes drift away from Earths rotation and that’s what gyrocompasses are used for…

Are you saying that your first claim is a strawman?

No, it’s you trying to make two conflicting claims.
« Last Edit: September 27, 2025, 03:08:42 AM by turbonium2 »

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #44 on: September 27, 2025, 03:12:10 AM »
Drifting off of Earths rotation, or held within Earths rotation, which one do you wanna go with here?

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #45 on: September 27, 2025, 03:15:47 AM »
See what always happens when it’s all lies, they always screw up, two different stories that conflict with one another, etc

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #46 on: September 27, 2025, 03:20:39 AM »
Drifting off of Earths rotation, or held within Earths rotation, which one do you wanna go with here?
Neither.
I want you to talk about how a gyrocompass should work in your delusional fantasyland?

See what always happens when it’s all lies
Yes, instead of you answering simple questions about a gyrocompass, you try to lie about them, and when that doesn't work you deflect to more lies.

Now again, care to stop with the pathetic BS and either explain how gyroscopes work in your delusional fantasy or admit you can't?

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #47 on: September 27, 2025, 03:48:21 AM »
No, you’re the idiot who brought them up here, not me.

But of course, instead of explaining what they’re used for on planes as you see it, you asked me what they have self righting mechanisms for…

Why didn’t you say they’re used to correct for drift from Earths rotation, that’s what you think they’re used for, isn’t it?

If you bring something up like this, at least explain what you think they’re used for on planes.

Maybe you didn’t mention that they told us they’re used to correct for drift from Earths rotation, since it conflicts with your claim that air and all things within air rotate with the Eartn rotation?

That’s not very good, is it? 

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #48 on: September 27, 2025, 01:31:15 PM »
No, you’re the idiot who brought them up here, not me.
You really can't help yourself, can you?
You just are desperate to lie to everyone.

As a reminder, your first post in this thread:
Doesn’t gravity hold everything to the ball earth rotation?
Completely off topic.

And when that failed, you bring up stars:
we’d see the stars
Also completely off topic.

And then when that failed, you try even more pathetic BS:
You really believe this instrument was designed to work for a ball Earth?
Because it’s shaped as a ball?
Instead of even attempting to discuss what was said, you just make up a strawman and pretend that the only reason we think they are for a round Earth is because they are round. Truly pathetic.

And when that failed, you try even more pathetic BS:
Point to the magnetic
Compasses use Earths center which is far more magnetic
Except we know it isn't magnetism for gyrocompasses.

You know you have no chance of explaining gyrocompasses work in your delusional fantasy, so you need to deflect to go on the attack to pretend the RE model doesn't work, to pretend your pathetic BS is true by default; even though the very topic of the thread clearly demonstrates Earth is round and rotating.
And you are so utterly dishonest and pathetic with it, that once your BS is called out to much, instead of trying to defend it, you just abandon ship and spout more pathetic BS to try to attack.


So no, YOU are the worthless, lying subhuman POS that brought it up here. Not me.
You brought up all this dishonest BS in this thread on gyrocompasses. All because you know that these devices clearly demonstrate Earth is round and rotating.

That’s not very good, is it?
No, your absolutely pathetic, dishonest BS is not good.
So how about you stop it and instead try to explain how a gyrocompass works?

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #49 on: September 30, 2025, 02:48:13 AM »
If your made up bs force held all the air and all things within the air to a made up bs ball Earth with a made up bs rotation in a made up bs endless space, then anything in air which opposes the made up holding to a ball Earth rotating in made up endless space would be resisted by that made up force holding them to ball Earths rotation!

It would be like invisible strings in air attached to all planes in flights, moving them with a ball Earth rotating below them, making them rotate with the ball Earth while holding them in place within air to rotate with Earth at a thousand mph in a path around and around in endless space!
 
Any plane flying opposite of ball Earths rotation is held to follow the Earths rotational path, so a plane flying in the ball Earths rotational path would be flying faster than if suspended in air like an air balloon, and would be flying faster than Earths rotation alone moves them in air, so would be held by gravity to follow Earths rotational speed of 1000 mph.

And planes flying against Earths rotational path would face great resistance from the made up super duper force holding them in air to Earths rotational path and direction, too!

For such a powerful and omnipotent force that holds and pulls down all things but some things it can’t hold at all, it sure seems to have a lot of problems and contradictions that don’t happen at all with our other actual forces, since it’s not an actual force at all.

The official explanation for what gyrocompasses do, is that they account for the ball Earths rotation in air, on flights.

But if that was true, which it isn’t, but if it was true, it would mean their other claim that all things in air are held by the made up force in Earth to follow with its rotation within the air, which supposedly is also held by the made up force to follow the ball Earths rotation.

And if THAT claim was true, then planes would also be held in aur by the made up force to follow Earth balls rotation!

Which means at least one of these claims cannot be true, or neither claim are true, which is the case in fact. Both claims are just bs, as usual.

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #50 on: October 03, 2025, 04:13:14 PM »
If your
Again.
Stop with all the pathetic BS, and explain how gyrocompasses work.
Stop with all the pathetic strawmen, where you blatantly lie about what the RE model claims.
Stop with all the pathetic lies, where you act like we claim gravity is pure magic.

Which means at least one of these claims cannot be true
And that isn't surprising given most of YOUR claims are pure BS. And that includes your claims about what REers claim.

Again, stop with all the pathetic BS and explain how gyrocompasses work.
If you can't explain how gyrocompasses work in your fantasy, then admit that. Admit you have no explanation at all for how they work, and that they shouldn't work on a flat Earth so their existence clearly disproves a flat Earth.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #51 on: October 03, 2025, 11:25:32 PM »
I’ve already explained how all their other instruments work and measure for a flat surface of Earth below them, which is to fly at level paths in the air, which is in two directions, across the planes at both wings, and nose to tail at level too, which they call a straight and level flight.

Are you not aware that we once DID have compasses on planes?

Before we had those instruments of today, we used a regular compass in planes…

They weren’t very accurate, but they used other things like artificial horizon lines on their panels among other things, so it still helped out, somewhat anyway.

A gyrocompass couldn’t even work over a ball Earth, same as none of the other instruments could work for a ball Earth below us in planes.

Level flight at one altitude or several different steady altitudes is obvious proof that Earths surface is entirely flat and level and a horizontal plain surface.

They’re not using them to prove what the Earths surface is shaped as, they’ve already known that it’s flat, before they ever designed those very instruments which measure for a flight over the flat surface of Earth below planes above the surface of Earth.

What we actually do, what we actually measure for, what planes fly level for, above Earth, why surveyors akways assume the surface is flat on Earth, and measure for it as flat on their projects, and those projects work and build properly on the flat surface…

Actions show the reality.

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #52 on: October 04, 2025, 12:07:16 AM »
I’ve already explained how all their other instruments
i.e. you have repeatedly deflected away from the issue at hand.
And this in fact yet another lie from you where you haven't actually explained it at all. Instead you have just repeatedly lied to everyone.

Now again, stop with all the BS and explain how a gyrocompass works.

A gyrocompass couldn’t even work over a ball Earth
Sure they can, as they do.
In fact, they rely upon the fact that Earth is round and rotating.

Now again, stop with all the BS and explain how a gyrocompass works.
If you can't, just admit you can't.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #53 on: October 04, 2025, 03:14:23 AM »
You claimed that the air rotates with the Earth, and all things within the air also rotate with the air and rotate with the Earth, planes fly in air and rotate with the Earth while flying to their destinations in any and all directions over the Earth, while rotating with the Earth at the same time!!

Are you once again going to ignore what you claimed here?

Of course you are, you always ignore your bs after you are caught lying or claiming something that conflicts your other claims.

A true weasel indeed, but I’m not wasting my time dealing with you anymore.

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #54 on: October 04, 2025, 12:37:03 PM »
You claimed that the air rotates with the Earth
Due to friction and inertia.
Not magic.
Stop acting like I said it was due to magic.

That means it will not have the same impact on a gyrocompass.

but I’m not wasting my time dealing with you anymore.
Good riddance to bad garbage.
Don't bother coming back.

If you do decide to post again, make sure you clearly explain how a gyrocompass works in your delusional fantasy.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #55 on: October 11, 2025, 01:00:55 AM »
It measures for planes if they drift off of straight and level and flat flight paths.

They didn’t even exist until recently, and flights worked well before they came to exist.

Like other instruments used today in many planes, not all planes though, but some planes, additional instruments are used to confirm other instruments, combine with other instruments, and so forth.

What is odd about this instrument, is unlike the other instruments on planes, there seems to be nothing explained about how it works, what is measured, the methods and theory behind its purpose in having on planes at all.

There’s not one account and explanation for it. Or any valid explanation for it at all, in fact!

What I like to do in such odd cases, is look and compare what is said about it, what it’s for, etc.

If it’s measuring or accounting for Earths rotation, why didn’t anyone say that planes are off course because of Earths rotation not accounted for in flights?  Anyone say that’s a problem over the past 80 years?  I’ve never heard a thing about it until now! 

You’re the idiot who first brought it up here, and then think it’s up to me to explain it, when you’ve never said spit about it at all!

I’ll bring something up and keep asking you to explain it all, but I’ll never explain it myself, just say you need to explain it , and if you don’t, or I don’t like your explanation for it, I’ll keep saying your avoiding the issue and not answering for it!!

It’s too stupid to even think about doing, it’s your specialty though

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #56 on: October 11, 2025, 02:03:10 AM »
Air rotates perfectly in time and position with Earths rotation, because of friction and inertia?

When did you first have any proof or a shred of valid evidence that Earth was actually a ball, show any evidence that your ‘endless space’ existed, before you’re claiming Earth is a ball in endless space which is rotating? Let alone with all air rotating with Earth by some sort of ‘friction’ or ‘inertia’?

Piles of made up bs is just more bs,

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JackBlack

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #57 on: October 11, 2025, 02:03:30 AM »
It measures for
I don't give a damn what you want to claim it measures for.
The question is HOW DOES IT WORK?

Can you explain how gyrocompasses work?
If not, the only thing coming out of your lying mouth should be an admission that you can't.

If you can't post either an admission that you cannot explain how they work, or provide such an explanation, then don't post again.

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turbonium2

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #58 on: October 11, 2025, 07:00:59 AM »
We already know it works as any standard compass on Earth, reading for the magnetic center point of the flat Earth.

Show me what proof of it accounting for a ball Earth rotation if you can. Then we’ll rage ur from that point

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DataOverFlow2022

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Re: Gyrocompasses make use of very real Earth’s Rotation
« Reply #59 on: October 11, 2025, 08:23:31 AM »
We already know it works as any standard compass on Earth, reading for the magnetic center point of the flat Earth.

Show me what proof of it accounting for a ball Earth rotation if you can. Then we’ll rage ur from that point

As in these two things..


Quote
One of the more jaw-dropping segments of the documentary comes when Bob Knodel, one of the hosts on a popular Flat Earth YouTube channel, walks viewers through an experiment involving a laser gyroscope. As the Earth rotates, the gyroscope appears to lean off-axis, staying in its original position as the Earth's curvature changes in relation. "What we found is, is when we turned on that gyroscope we found that we were picking up a drift. A 15 degree per hour drift," Knodel says, acknowledging that the gyroscope's behavior confirmed to exactly what you'd expect from a gyroscope on a rotating globe.

https://www.newsweek.com/behind-curve-netflix-ending-light-experiment-mark-sargent-documentary-movie-1343362


  One.  The earth’s rotation causes drift in a gyroscope as seen in the documentary “Behind the Curve”.


Quote
The crucial additional ingredient needed to turn a gyroscope into a gyrocompass, so it would automatically position to true north,[2][3] is some mechanism that results in an application of torque whenever the compass's axis is not pointing north.
One method uses friction to apply the needed torque:[9] the gyroscope in a gyrocompass is not completely free to reorient itself; if for instance a device connected to the axis is immersed in a viscous fluid, then that fluid will resist reorientation of the axis. This friction force caused by the fluid results in a torque acting on the axis, causing the axis to turn in a direction orthogonal to the torque (that is, to precess) along a line of longitude. Once the axis points toward the celestial pole, it will appear to be stationary and won't experience any more frictional forces. This is because true north (or true south) is the only direction for which the gyroscope can remain on the surface of the earth and not be required to change. This axis orientation is considered to be a point of minimum potential energy.

https://en.wikipedia.org/wiki/Gyrocompass


Two, the way a caged gyroscope is forced to point north by the torque created by earth’s rotation which results in a gyrocompass.