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Subject: How does gravity work on a Halo ring?

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This has bugged me for ages, i just dont understand how there can be gravity on something that doesnt have a core and isnt sphere shaped. Hell how can it even have atmosphere? explain please.

  • 01.03.2011 11:23 AM PDT

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The ring spins.
Its not gravity its centrifugal force.

  • 01.03.2011 11:31 AM PDT

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Spinning probably is more of the means to keep the ring from collapsing on itself.

Centrifugal force could be the answer to the gravitational problem. However, Try explaining the gravity on the Ark using that theory.

I'd hafta say that the gravity is created through the means of, simply, anti-gravitational technology. The Forerunners had amazing technology. If the Covenant have antigrav tech, why can't the Forerunners?

[Edited on 01.03.2011 11:36 AM PST]

  • 01.03.2011 11:34 AM PDT

It has both centrifugal gravity from spinning, and artificial gravity. The walls along the edge and inner curve hold in the atmosphere.

  • 01.03.2011 11:35 AM PDT
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The gravity either comes from the spinning of the ring which creates centrifugal force or it is totally artificial. Which means that it's formed by some kind of generator. How this generator would work is totally unknown. It may use black holes or some other objects with extreme density. Halo rings usually spin as we have seen in Halo CE and 2 but I don't believe a speed that slow could create enough centrifugal force. (You can't really see how fast it spins. You can only see that at least it spins.) It may also be combination of both.

  • 01.03.2011 11:36 AM PDT

Well, there is of course going to be an imaginary force on anyone inside and on the surface of a spinning Halo (yay centrifuges!), but it's also plausible that the Forerunner have neato artificial gravity systems. I mean, even the UNSC has neato artificial gravity. And the UNSC is far behind the Forerunner technologically; the latter knows how to build giant hula hoops.


On the Halo rings it could quite possibly be just centrifugal force, or it could be a combination of that and artificial gravity machines.

[Edited on 01.03.2011 11:38 AM PST]

  • 01.03.2011 11:37 AM PDT

Cortana explains that the rings don't spin nearly fast enough to generate enough force to similate gravity. She finds that artificial gravity is mixed in. I don't have the books in front of me, or I'd tell you the title & page.

  • 01.03.2011 11:49 AM PDT
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They have artificial gravity, I think it has never been really explained. Maybe on Halo Cryptum.

  • 01.03.2011 12:00 PM PDT

To have enough Centrifugal Force, the rings would have to be spinning seriously fast. Fast enough that you probably wouldn't be able to get on one in the first place. It is mostly artificial gravity, but how it is implemented I do not know.

  • 01.03.2011 12:14 PM PDT

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Posted by: tsassi2
The gravity either comes from the spinning of the ring which creates centrifugal force or it is totally artificial. Which means that it's formed by some kind of generator. How this generator would work is totally unknown. It may use black holes or some other objects with extreme density. Halo rings usually spin as we have seen in Halo CE and 2 but I don't believe a speed that slow could create enough centrifugal force. (You can't really see how fast it spins. You can only see that at least it spins.) It may also be combination of both.
INCORRECT MATHS THAT I CANNOT BE BOTHERED TO CORRECT.

Halo rings are 10,000km in diameter.
This means that to generate 9.81N of centrifugal force (one standard 'gee'), it would have to rotate at 783m/s. Sounds like a lot, but it's only a rotational velocity of 1.57x10^-4 radians per second - somewhere in between the speeds that a minute hand and hour hand make on a watch face.
That said, it is almost 1.7 times as fast as Earth rotates at its equator, at 1750mph.

With that figure, it will take 40,000 seconds for one full revolution, or about 11 hours.

Note (taken from the halopedia trivia section on Halo rings):Considering its 10,000 km diameter, Halo would need to rotate at 7 km/s in order to produce Earth-like "gravity". However, in Halo: The Fall of Reach, Cortana says that "some numbers don't check out" and discovers an artificial gravity field on the ring.I don't know how they arrived at 7km/s for its speed, I checked and rechecked and only got 800m/s.
Just worked it out - gravitational field strength is measured in Newtons per kg, so the mass I should have used was 1kg, not 80 (average person weight).
Using this correct value, the Halo ring would have an angular velocity of 1.4x10^-3 radians per second, close to that of a second hand on a watch. This means it would take a fraction of a second under an hour and 15 minutes for a single rotation.

[Edited on 01.03.2011 12:28 PM PST]

  • 01.03.2011 12:15 PM PDT

Artificial gravity I assume.

  • 01.03.2011 12:20 PM PDT

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Centripetal Force.

  • 01.03.2011 12:22 PM PDT

Don't forget that human ships - Pillar of Autumn, In Amber Clad, Cairo Station etc - all have artificial gravity as well. So the idea that a Halo ring could have artificial gravity isn't too far fetched.

  • 01.03.2011 12:38 PM PDT
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Posted by: GhostRyderCA941
I'd hafta say that the gravity is created through the means of, simply, anti-gravitational technology. The Forerunners had amazing technology. If the Covenant have antigrav tech, why can't the Forerunners?

How... would... gravity be made with... antigravity?

Also, it's most likely a mixture of the centrifugal force and some type of artificial gravitic device.

  • 01.03.2011 12:59 PM PDT

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  • 01.03.2011 1:03 PM PDT

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Posted by: Lord Snakie
Also, it's most likely a mixture of the centrifugal force and some type of artificial gravitic device.

My assumption as well.

  • 01.03.2011 1:04 PM PDT

Gravity is a function of mass. If you were floating in space and you had a golf ball floating next to you, the ball would eventually come to rest on you because you have more mass. The mass of the rings alone is enough, not to mention the Ark.

  • 01.03.2011 1:05 PM PDT

On hiding dead bodies:
Posted by: Psuedo
Posted by: teh Chaz
Inside another dead body. It's the last place they'll look
A corpse within a corpse.
CORPSEPTION.
Win.

Posted by: Stardriver 1
Gravity is a function of mass. If you were floating in space and you had a golf ball floating next to you, the ball would eventually come to rest on you because you have more mass. The mass of the rings alone is enough, not to mention the Ark.
The rings will have a vastly lower mass than that of earth, and would only hold true for the surface on the outer surface of the ring.

  • 01.03.2011 1:16 PM PDT
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Posted by: JDYeash937 MkII
Posted by: Stardriver 1
Gravity is a function of mass. If you were floating in space and you had a golf ball floating next to you, the ball would eventually come to rest on you because you have more mass. The mass of the rings alone is enough, not to mention the Ark.
The rings will have a vastly lower mass than that of earth, and would only hold true for the surface on the outer surface of the ring.

Also, consider Threshold, which was a gas giant directly opposite Installation 04. Its mass could easily have overridden that of 04, unless 04 had the help of centrifugal force and, potentially, artificial gravity.

  • 01.03.2011 1:20 PM PDT

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Posted by: Lord Snakie
Posted by: JDYeash937 MkII
Posted by: Stardriver 1
Gravity is a function of mass. If you were floating in space and you had a golf ball floating next to you, the ball would eventually come to rest on you because you have more mass. The mass of the rings alone is enough, not to mention the Ark.
The rings will have a vastly lower mass than that of earth, and would only hold true for the surface on the outer surface of the ring.

Also, consider Threshold, which was a gas giant directly opposite Installation 04. Its mass could easily have overridden that of 04, unless 04 had the help of centrifugal force and, potentially, artificial gravity.


Installation 05 also orbited a planet(unnamed I believe, it was a large blue planet though.) So based on 04 and 05 it's likely all of the rings were placed near a large gas-giant/planet for whatever reason.

  • 01.03.2011 1:24 PM PDT


Posted by: WEE MAN MJJC
This has bugged me for ages, i just dont understand how there can be gravity on something that doesnt have a core and isnt sphere shaped. Hell how can it even have atmosphere? explain please.


just so every one knows it wouldn't be called an atmosphere because its not a sphere it's a ring

  • 01.03.2011 2:18 PM PDT

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Posted by: DRKLITNING

Posted by: WEE MAN MJJC
This has bugged me for ages, i just dont understand how there can be gravity on something that doesnt have a core and isnt sphere shaped. Hell how can it even have atmosphere? explain please.


just so every one knows it wouldn't be called an atmosphere because its not a sphere it's a ring

well done for pointing that out. what i meant was you need some sort of atmsophere or protective covering to shield the surface from the vacuum of space and other spacy stuff. Otherwise little chiefy weify woudlnt have been able to blow halo up now would he?

[Edited on 01.03.2011 2:32 PM PST]

  • 01.03.2011 2:32 PM PDT

Dart3rocks

There are two ways that the ring contains gravity.

The most obvious is
1) Centripetal Force which is like the G-force you get when you turn your car steeply. since the ring is constantly spinning which causes this.

The Second one is more subtle.
2) The ring rotates due to the gravity of the planet it rotates; but that doesn't mean the ring doesn't have gravity itself. the structure is so huge that it causes it's own gravity and the forerunners were smart enough to know how big
the ring had to be able to support life for repairing it if it were hurt and how big it would need to be to contain it's own gravity.

3)oh, and the ring probably had atmosphere as well; the forerunners were so advanced that they could pretty much create whatever they needed to make sure the ring was protected from the flood; as well as making sure it was able to destroy the flood.
Hope that helped,
Dart3rocks

[Edited on 01.12.2011 3:28 PM PST]

  • 01.12.2011 3:27 PM PDT

OH HAI THAR!

It's probably an explanation that humanity hasn't even thought of yet.

  • 01.12.2011 3:36 PM PDT


Posted by: ronan1555
The ring spins.
Its not gravity its centrifugal force.
Centrifugal force doesn't actually exists. The centripetal force, however, does.

  • 01.12.2011 3:48 PM PDT

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