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This topic has moved here: Subject: the scientific and technological aspect of halo and halo 2
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Subject: the scientific and technological aspect of halo and halo 2
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Um the gravity isnt from the spin actaully. In the flood they say they have their own gravity thing yet for some reason Halo spins

  • 06.19.2004 3:17 PM PDT
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Edit: oops didn't read above post properly

The guy that wrote the essay in the link above didn't take into account those structures on Halo that pump plasma into the sky, maybe to reenforce the forcefield surrounding Halo and preventing the release of the atmosphere

[Edited on 6/19/2004 3:39:42 PM]

  • 06.19.2004 3:24 PM PDT
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My work:

Fcentripetal = m v^2 / r

I used 10Kg as the mass. I used the force of gravity (on earth) on a 10Kg object as the centripetal force. Then plugged in the radius (in meters) and solved for velocity.

( 98.1N ) = ( 10Kg ) ( v^2 ) / ( 5,000,000 m )

( 490,500,000 Kg m^2 / s^2 ) = ( 10Kg ) ( v^2 )

v^2 = ( 49,050,000 m^2 / s^2 )

v = ( 7000 m / s )

  • 06.19.2004 3:27 PM PDT
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Posted by: Snipe Assault
Um the gravity isnt from the spin actaully. In the flood they say they have their own gravity thing yet for some reason Halo spins


Good point.

I've never read the books, I was just trying to answer his specific question about how fast it would need to spin to simulate Earth's gravity (if there wasn't some kind of Forerunner gravity generator).

  • 06.19.2004 3:31 PM PDT
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The only reason for Halo to spin would be to have the day and night effect. It does not seem very reasonable to have to sleep in the sun all your life. Darkness is needed. It also may help circulate and help keep the entire ring warm.

  • 06.19.2004 3:36 PM PDT
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Of course, everyone, this is all theory. Remember, Halo was made by the forerunners, (who I might add were much more intelligent then us) The forerunners could have found other ways of creating gravity. (such as maybe those things that shoot out plasma into the air, or whatever it is. It had to have been made for some reason!) For infact, when we start the game, Halo isn't really moving (the camera is moving around the ring) so, there must be something else sustaining earth-like gravity.

  • 06.19.2004 3:37 PM PDT
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The two forces you are talking about are centripetal and centrifugal (from a non-inertial frame of reference), not centrifical at all (there is no such force).

Plus, whos to say that the Halo actually does have to spin in order to create gravity. The Forerunners may have found some new amazing technology that dosn't need a gut wrenching whirl.

  • 06.19.2004 3:51 PM PDT
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Posted by: Geronimo
I believe that a falling object on Earth falls at a rate of 9.8 Newtons per second squared.

EDIT: No wait that's wrong. The Newton is a measure of weight, not distance. The Earth's gravitational pull is 9.8 Newtons. I don't know what the rate of a falling object is.

The rate is 32 ft. per second per second. That means in the first second, you will fall 32 feet, in the second second you will fall 64 more feet. And so on and so on, with your speed increasing exponentially. Funny what facts you can remeber just like that.

  • 06.19.2004 7:03 PM PDT
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Posted by: super nerd89
well "pistol pete", while some of the more common types such as yourself may not worry your little minds about complicated things like astrophysical genetics, there are more civilised and cultured individuals such as myself that have the brainpower to think about things like that. In addition, I dont think you'll be laughing when I attain my degrees in the advanced sciences and astrogenetics!

Learn to spell "civilized" first. lol

  • 06.19.2004 7:05 PM PDT
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BTW: isn't it called centrifugal force?
Yes.

  • 06.19.2004 7:06 PM PDT
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Posted by: Geronimo
I believe that a falling object on Earth falls at a rate of 9.8 Newtons per second squared.

EDIT: No wait that's wrong. The Newton is a measure of weight, not distance. The Earth's gravitational pull is 9.8 Newtons. I don't know what the rate of a falling object is.


the acceleration due to gravity on a falling object is 9.8 meters/sec^2

gravitational pull is not 9.8 newtons of force, rather the force of gravity it is 9.8 times the mass (kg) of the object (mg is the equation)

  • 06.19.2004 7:09 PM PDT
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Posted by: Rahdigan
BTW: isn't it called centrifugal force?
Yes.


no. its centripital, centrifugal are "fake" forces that on feals, like in a car when its turning right and you feel like something is "pushing" you left

  • 06.19.2004 7:10 PM PDT
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woot woot woot woot woot woot woot woot woot woot woot woot!

  • 06.19.2004 7:10 PM PDT
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Posted by: JAGnumber1
The only reason for Halo to spin would be to have the day and night effect. It does not seem very reasonable to have to sleep in the sun all your life. Darkness is needed. It also may help circulate and help keep the entire ring warm.

Halo doesn't spin in the same way that the earth does. It would not create day and night. That must be created by the gas giant it orbits. Kind of like an eclipse, but much more frequent. The reason a spin would create gravity is that we walk on the inside, not the outside. If it spun and we were on the outside we would fly off into space, but on the inside we are pulled to the "ground".

  • 06.19.2004 7:11 PM PDT
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Posted by: T3H 1337 W4RR10R
Posted by: Rahdigan
BTW: isn't it called centrifugal force?
Yes.


no. its centripital, centrifugal are "fake" forces that on feals, like in a car when its turning right and you feel like something is "pushing" you left

I know that. I am reffering to what happens with Halo. That is centrifugal force. I haven't studied centripital yet, so I am not sure what it is. I do know that when you have a spinning object, things inside will be pulled outward. Check what I am talking about before you correct me. Unless you dispute that Halo's spin causes centrifugal force of course.

  • 06.19.2004 7:16 PM PDT
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*sniff*Wort wort *cough* wort

  • 06.19.2004 7:24 PM PDT
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halo is a circle that spins

  • 06.19.2004 7:39 PM PDT
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The source of light in Halo is perplexing me somewhat. If Halo is truly in orbit over Threshold (The Gas Giant if you've forgotten) then a good portion of the time it's going to be in shadow. Further, one portion of Halo will almost always be in darkness because of it's ring nature. The interior of the ring can't all be pointed towards the sun at all times.

Hmm... Mind you Threshold could reflect a lot of light towards Halo but man, this is turning into a geometry and astrophysical nightmare.

Maybe the pulses we see being fired up in Halo illuminate the opposite side? That could explain it.

  • 06.19.2004 7:41 PM PDT
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Even if Halo had its own source of Gravity machines or whatever there has to be some sort of magnetic shield around Halo for the suns radiation and UV rays would sizzle the ring like bacon and everything on it. In order to make a magnetic field you need a core(like earths) with molten rock spinning inside the earth. Spinning around a giant mass of cobalt generating a field around the earth therefore shielding us from all kinds of space crap.

  • 06.19.2004 8:05 PM PDT
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it all depends on the diameter really...

lets just say pretty fast

  • 06.19.2004 8:07 PM PDT
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Posted by: T3H 1337 W4RR10R
Posted by: Geronimo
I believe that a falling object on Earth falls at a rate of 9.8 Newtons per second squared.

EDIT: No wait that's wrong. The Newton is a measure of weight, not distance. The Earth's gravitational pull is 9.8 Newtons. I don't know what the rate of a falling object is.


the acceleration due to gravity on a falling object is 9.8 meters/sec^2

gravitational pull is not 9.8 newtons of force, rather the force of gravity it is 9.8 times the mass (kg) of the object (mg is the equation)


That sounds right. I've been out of school for barely three weeks and already my mind's gone.

  • 06.19.2004 8:12 PM PDT
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hey i saw the Core too oh and by the way i figured out how gravity works on halo but it is theoretical and will take forever to type but i know it may work but it is theoretical because it deals with a 4-dimentional plane and space-time fabric

  • 06.19.2004 8:14 PM PDT
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Yah thats where i got it from. You think I could think of that by myself O_o

  • 06.19.2004 8:17 PM PDT
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Is this post about....anything relating to Science in Halo???

Cuz I've got this theory on the Flood. and on Sarge's Borens Syndrome, and on Halo's Defenses. So I'll post that later. For now, I g2g.

  • 06.19.2004 8:44 PM PDT
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I'd have to agree that the rotation of Halo doesn't seem to be related it's gravity because of the technology invoolved, but I think that the rotation could still be explained as an architectural function. The rotation of the ring would apply force outward in all directions from the center of the ring, thus maintaining structural rigidity throughout all of Halo. Regardless of the materials involved in the ring's construction, the gravity of Threshold (the planet Halo orbits) would compress Halo to the breaking point if the ring didn't rotate. The rotation would basically perform the function of giant support struts on the inside of the ring (kinda like having huhge invisible spokes on a giant wheel). As far as the giant plasma bursts are concerned, I think it's doubtful they could provide light to the other side of the ring since there aren't any structures on the inside of the ring to convert the energy into white light before hitting the other side. My best guess is that the plasma emission structures having recieving counterparts on the other side of the ring in order to safely absorb and redirect the plasma energy, maybe to serve as a way to transport very large amounts of energy across the ring very quickly. The plasma burst could also serve to discharge excess heat in the ring, act as maneuvering thrusters (Why would the be on the INSIDE of the ring? Don't ask me, I'm just guessing at stuff here), or maybe the Forerunners were just very fond of giant, meaningless towers that shoot off pretty green clouds of plasma (I like that one).

  • 06.19.2004 10:53 PM PDT

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