| Pages: [1] 2 :: one page |
| Author |
Thread Statistics | Show CCP posts - 1 post(s) |

Nanatoa
School of Applied Knowledge Caldari State
163
|
Posted - 2012.11.19 23:16:00 -
[1] - Quote
We all know that movement in EVE flies in the face of Newton's First Law, but what's the status of his Second and Third Laws?
In particular, I'd be interested to know if, when bumping, increasing my ship's mass by x% will have the same effect as increasing my velocity by x% (since F=ma). Furthermore, will all my F result in precisely -F for my target?
To put this differently: exactly how does Destiny handle collisions between ship balls? We do what we must, because we can.
MinerBumping.com |

Shederov Blood
Wrecketeers
252
|
Posted - 2012.11.19 23:33:00 -
[2] - Quote
Nanatoa wrote:To put this differently: exactly how does Destiny handle collisions between ship balls? That sounds like a painful place to be bumped.
|
|

ISD Suvetar
ISD Community Communications Liaisons
1076

|
Posted - 2012.11.19 23:42:00 -
[3] - Quote
From what I'm led to believe; EVE's simulation deals with space as a Superfluid rather then a body of space that accurately models newtonian physics; which in and of itself is a misnomer as we know that Newtonian physics are only good enough for non relativistic speeds.
So it approximates what *feels* right to a person, but is not at all mathematically correct, except for being correct as far as the EVE Physics model goes.
Now, an interesting question (to me is) what would EVE be like if we had a space physics model like the old games Independance War and Edge of Chaos had ?
ISD Suvetar,-áCaptain Community Communication Liaisons (CCLs) Interstellar Services Department We are hiring! |
|

Nanatoa
School of Applied Knowledge Caldari State
163
|
Posted - 2012.11.19 23:50:00 -
[4] - Quote
ISD Suvetar wrote:So it approximates what *feels* right to a person, but is not at all mathematically correct, except for being correct as far as the EVE Physics model goes.
Aye, we know that that's true in EVE for Newton's First Law, since you don't keep moving forever if no force is applied (or you have to assume the space in New Eden is different and space itself exerts a force) - but what about the Second and Third? I don't see why (or even how) those should (or could) be 'dumbed down' to feel right. Do we know if/how they are implemented?
We do what we must, because we can.
MinerBumping.com |

vyshnegradsky
Organized-Chaos Apocalypse Now.
36
|
Posted - 2012.11.19 23:51:00 -
[5] - Quote
Newtons second law is +úf = +öp / +öt. Or the resultant force = the rate of change of momentum. A simpler version is +úf=ma. This is pretty simple for someone to go out and test. As long as experimental conditions are maintained it should be simple for determine.
Newtons third law states that when an object A exerts a force on object B, Object B exerts a reaction force of equal magnitude and opposite direction on Object A. Seeing as when you are in the captains quarters you don't usually ( its bugged a few times for me) fall through the floor, or the fact that there is any motion at all, implies that yes, Newtons third law is also in effect.
tldr: GTFO noob
P.S: Yay now i feel motivated enough to finish my work on particle physics \o/ This one's a bit over the edge guys.
Locked for breaking... well, pretty much all the rules.
- CCP Falcon |

Nanatoa
School of Applied Knowledge Caldari State
163
|
Posted - 2012.11.19 23:55:00 -
[6] - Quote
vyshnegradsky wrote:implies that yes, Newtons third law is also in effect. If the choice is either "Third Law" or "Nothing", yes - but there are other options, since a programmer might implement this in any number of ways, for good or for worse.
vyshnegradsky wrote:P.S: Yay now i feel motivated enough to finish my work on particle physics \o/ Glad to have been of service o7
We do what we must, because we can.
MinerBumping.com |

Lance Rossiter
CHAINS Corp
8
|
Posted - 2012.11.19 23:59:00 -
[7] - Quote
F=MA isn't as useful for this purpose (I think) as E=1/2MVV.
F=MA deals with the force acting on a single object and how it affects the motion of that objerct, but here we're interested in how two different objects interact when they collide. That's going to be some sort of kinetic energy transfer, so you want to maximise the kinetic energy of the bumping ship in order to have the greatest effect on the target.
As E=1/2MVV, Velocity is much more important than mass. Getting hit by a car travelling at speed is much more devastating than getting hit by a truck that's barely moving.
I think that's right, it's been a while... |

IHaveCandyGetInTheVan69
Angry Mustellid Iron Oxide.
271
|
Posted - 2012.11.20 00:01:00 -
[8] - Quote
I think you confusing a few different things in OP, we do not really care about the force involved in bumping, just the kinetic energies.
IIRC eve simulates elastic collisions between ships, so no %mass does not equal %velocity increase in terms of bumping |

IHaveCandyGetInTheVan69
Angry Mustellid Iron Oxide.
271
|
Posted - 2012.11.20 00:03:00 -
[9] - Quote
Lance Rossiter wrote:F=MA isn't as useful for this purpose (I think) as E=1/2MVV.
F=MA deals with the force acting on a single object and how it affects the motion of that objerct, but here we're interested in how two different objects interact when they collide. That's going to be some sort of kinetic energy transfer, so you want to maximise the kinetic energy of the bumping ship in order to have the greatest effect on the target.
As E=1/2MVV, Velocity is much more important than mass. Getting hit by a car travelling at speed is much more devastating than getting hit by a truck that's barely moving.
I think that's right, it's been a while...
this^
Although I think the mass fraction is important in determining which of the 2 bodies receives the kinetic energy after the collision, normally in eve we want to get the target moving as fast as possible, so having a high mass is also important even though it doesn't contribute as much to the total kinetic energy. |

vyshnegradsky
Organized-Chaos Apocalypse Now.
36
|
Posted - 2012.11.20 00:03:00 -
[10] - Quote
IHaveCandyGetInTheVan69 wrote:I think you confusing a few different things in OP, we do not really care about the force involved in bumping, just the kinetic energies.
IIRC eve simulates elastic collisions between ships, so no %mass does not equal %velocity increase in terms of bumping
Perfectly elastic collisions make baby jesus cry This one's a bit over the edge guys.
Locked for breaking... well, pretty much all the rules.
- CCP Falcon |

Nanatoa
School of Applied Knowledge Caldari State
164
|
Posted - 2012.11.20 00:09:00 -
[11] - Quote
Oi, it seems I opened a can of worms here.
What I understand from the above posts is that you can't just combine F=ma and F=-F. I figured that that would be possible, since the first Law does not apply: a constant force is needed to be at a certain speed, and if you suddenly slow down to 0 in a (well aimed) bump, all that F has to be in the target. Is that an absolutely stupid line of thinking? (In case you hadn't noticed, I'm not exactly a physics major :P) We do what we must, because we can.
MinerBumping.com |

vyshnegradsky
Organized-Chaos Apocalypse Now.
36
|
Posted - 2012.11.20 00:19:00 -
[12] - Quote
Nanatoa wrote:Oi, it seems I opened a can of worms here.
What I understand from the above posts is that you can't just combine F=ma and F=-F. I figured that that would be possible, since the first Law does not apply: a constant force is needed to be at a certain speed, and if you suddenly slow down to 0 in a (well aimed) bump, all that F has to be in the target. Is that an absolutely stupid line of thinking? (In case you hadn't noticed, I'm not exactly a physics major :P)
It depends on the nature of the collision. For that to occure the collision would have to be perfectly inelastic, meaning no kinetic energy is conserved. This cannot be true, as there are cases where kinetic energy is conserved. Maybe your getting confused with momentum being conserved? This one's a bit over the edge guys.
Locked for breaking... well, pretty much all the rules.
- CCP Falcon |

Kobal81
14th Legion Black Core Alliance
26
|
Posted - 2012.11.20 00:41:00 -
[13] - Quote
Nanatoa wrote:We all know that movement in EVE flies in the face of Newton's First Law, but what's the status of his Second and Third Laws?
In particular, I'd be interested to know if, when bumping, increasing my ship's mass by x% will have the same effect as increasing my velocity by x% (since F=ma). Furthermore, will all my F result in precisely -F for my target?
To put this differently: exactly how does Destiny handle collisions between ship balls?
No, Newton was not GOD therefore the law was meant to be broken "Greed, for lack of a better word, is good. Greed is right, greed works. Greed clarifies, cuts through, and captures the essence of the evolutionary spirit" |

Surfin's PlunderBunny
The Python Cartel.
3564
|
Posted - 2012.11.20 00:53:00 -
[14] - Quote
Kobal81 wrote:Nanatoa wrote:We all know that movement in EVE flies in the face of Newton's First Law, but what's the status of his Second and Third Laws?
In particular, I'd be interested to know if, when bumping, increasing my ship's mass by x% will have the same effect as increasing my velocity by x% (since F=ma). Furthermore, will all my F result in precisely -F for my target?
To put this differently: exactly how does Destiny handle collisions between ship balls? No, Newton was not GOD therefore the law was meant to be broken
God breaks his own laws all the time... like the time he allegedly stopped the earth from spinning and no one living on the equator noticed they were suddenly moving at 1000 mph (500mph at the point where this supposedly happened) "Little ginger moron" ~David Hasselhoff-á |

Ranzabar
Vertical Ventures Unlimited Corp
30
|
Posted - 2012.11.20 00:55:00 -
[15] - Quote
What would Sheldon Cooper do? Abide |

Nathalie LaPorte
Republic University Minmatar Republic
28
|
Posted - 2012.11.20 01:17:00 -
[16] - Quote
think of that apparatus with 5 shiny metal balls. the reason they behave as they do is that their collisions conserve most of the energy, so then you effectively end up applying both conservation of momentum, and conservation of energy, to constrain the final result. If ship collisions in EVE behave similarly, then you'd need to conserve both momentum and energy there as well. To say that conservation of one is more important than the other, dependent on their relative sizes, is not really something that makes any sense. Either one is conserved, or both, or neither. It's not a question of importance. |

Surfin's PlunderBunny
The Python Cartel.
3564
|
Posted - 2012.11.20 01:46:00 -
[17] - Quote
Nathalie LaPorte wrote:think of that apparatus with 5 shiny metal balls.
I can think of a few.... but only 1 is what you're talking about  "Little ginger moron" ~David Hasselhoff-á |

James Amril-Kesh
RAZOR Alliance
1308
|
Posted - 2012.11.20 01:49:00 -
[18] - Quote
Nanatoa wrote:exactly how does Destiny handle collisions? Well there was only one episode of SGU that I can recall where Destiny collides with something other than a star (which it was of course designed to do). It seemed to respond as you'd expect a really big ship to when grazing against another ship just after coming out of FTL. |

Mars Theran
Tribal Liberation Force Minmatar Republic
412
|
Posted - 2012.11.20 01:56:00 -
[19] - Quote
vyshnegradsky wrote:Newtons second law is +úf = +öp / +öt. Or the resultant force = the rate of change of momentum. A simpler version is +úf=ma. This is pretty simple for someone to go out and test. As long as experimental conditions are maintained it should be simple for determine.
Newtons third law states that when an object A exerts a force on object B, Object B exerts a reaction force of equal magnitude and opposite direction on Object A. Seeing as when you are in the captains quarters you don't usually ( its bugged a few times for me) fall through the floor, or the fact that there is any motion at all, implies that yes, Newtons third law is also in effect.
tldr: GTFO noob
P.S: Yay now i feel motivated enough to finish my work on particle physics \o/
You seems to be applying a lot of non-essential math to some very simple principles that don't require it. You're also expanding on Newtons Laws,and adding to them.
Actually:
Quote:I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.
III. For every action there is an equal and opposite reaction.
Don't overdo it, you might strain yourself. zubzubzubzubzubzubzubzub |

James Amril-Kesh
RAZOR Alliance
1308
|
Posted - 2012.11.20 02:00:00 -
[20] - Quote
Mars Theran wrote:vyshnegradsky wrote:Newtons second law is +úf = +öp / +öt. Or the resultant force = the rate of change of momentum. A simpler version is +úf=ma. This is pretty simple for someone to go out and test. As long as experimental conditions are maintained it should be simple for determine.
Newtons third law states that when an object A exerts a force on object B, Object B exerts a reaction force of equal magnitude and opposite direction on Object A. Seeing as when you are in the captains quarters you don't usually ( its bugged a few times for me) fall through the floor, or the fact that there is any motion at all, implies that yes, Newtons third law is also in effect.
tldr: GTFO noob
P.S: Yay now i feel motivated enough to finish my work on particle physics \o/ You seems to be applying a lot of non-essential math to some very simple principles that don't require it. You're also expanding on Newtons Laws,and adding to them. Actually: Quote:I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.
III. For every action there is an equal and opposite reaction. Don't overdo it, you might strain yourself. It's not like anything he said was wrong or didn't directly follow from Newton's laws. |

Shaera Taam
Minmatar Death Squad Broken Chains Alliance
49
|
Posted - 2012.11.20 03:19:00 -
[21] - Quote
ISD Suvetar wrote:Now, an interesting question (to me is) what would EVE be like if we had a space physics model like the old games Independance War and Edge of Chaos had ?
What's the term all the kids are using these days?
Ah, yes...
Pure Awesomesauce!
Thus Spake the Frigate Goddess! |

SmilingVagrant
GoonWaffe Goonswarm Federation
891
|
Posted - 2012.11.20 03:22:00 -
[22] - Quote
ISD Suvetar wrote:
Now, an interesting question (to me is) what would EVE be like if we had a space physics model like the old games Independance War and Edge of Chaos had ?
With 360 degree firing arcs the "real space" physics actually become considerably less interesting save when calculating thrust vector. What made it so good in I-War is you could flip around and shoot at things on all axis while continuing your straight like travel, then boost your subwarp engines into a random second direction for a few seconds to put you in a completely different tactical situation.
They will literally never make another space game that good ever again.
Sigh. |

Mars Theran
Tribal Liberation Force Minmatar Republic
412
|
Posted - 2012.11.20 03:38:00 -
[23] - Quote
James Amril-Kesh wrote:Mars Theran wrote:vyshnegradsky wrote: tldr: GTFO noob
It's not like anything he said was wrong or didn't directly follow from Newton's laws.
Mostly, the ignorance of that statement, which afaik has nothing to do with any of Newtons laws. Also, Newtons laws are relatively simple; there isn't any good reason to complicate them, and I'd say he did more than that.
Delta p/ Delta t is a reference to a variable change of pressure over a variable period of time. (upper case)Sigma f is Sum of frequency, where f = frequency. F = Force.
How exactly does that make sense? I'm terrible at math, and all I need to do is google it.
So his first formula could be read as the Sum of frequency is equal to a change of pressure over a period of time. Not much to do with Newtons Laws if read that way.
+úF=ma is the correct form, with the slanted ma indicating a vector according to the documentation I've read. Also read as Force is equal to mass times acceleration. Very little to do with pressure, frequency, or the like there.
So unless I'm missing something, it isn't exactly right is it?
Either way, I probably wouldn't have said anything were it not for the "gtfo noob". In hindsight however, after actually reading the post and seeing the general attitude, it isn't as if he were actually being intentionally offensive, but more like he intended it in a non-offensive manner.
Someone needs to study more. zubzubzubzubzubzubzubzub |

Webvan
State War Academy Caldari State
142
|
Posted - 2012.11.20 05:52:00 -
[24] - Quote
/me goes to make sure the switch at jita which produces fluidic space and ceases Newtonian physics, is still in the [ON] position rendering all maths in this thread inert. Check. |

vyshnegradsky
Organized-Chaos Apocalypse Now.
36
|
Posted - 2012.11.20 07:20:00 -
[25] - Quote
Mars Theran wrote:James Amril-Kesh wrote:Mars Theran wrote:vyshnegradsky wrote: tldr: GTFO noob
It's not like anything he said was wrong or didn't directly follow from Newton's laws. Mostly, the ignorance of that statement, which afaik has nothing to do with any of Newtons laws. Also, Newtons laws are relatively simple; there isn't any good reason to complicate them, and I'd say he did more than that. Delta p/ Delta t is a reference to a variable change of pressure over a variable period of time. (upper case)Sigma f is Sum of frequency, where f = frequency. F = Force. How exactly does that make sense? I'm terrible at math, and all I need to do is google it. So his first formula could be read as the Sum of frequency is equal to a change of pressure over a period of time. Not much to do with Newtons Laws if read that way. +úF= ma is the correct form, with the slanted ma indicating a vector according to the documentation I've read. Also read as Force is equal to mass times acceleration. Very little to do with pressure, frequency, or the like there. So unless I'm missing something, it isn't exactly right is it? Either way, I probably wouldn't have said anything were it not for the "gtfo noob". In hindsight however, after actually reading the post and seeing the general attitude, it isn't as if he were actually being intentionally offensive, but more like he intended it in a non-offensive manner. Someone needs to study more. edit: +úF = +öp/+öt is correct too apparently, with p = momentum in this case, and the expression being a change in momentum. This is apparently how Newton himself expressed his 2nd Law. (Love how they change meanings willy nilly in math; makes it so fun to learn) p = mv (mementum = kg * m/s) +úF = ma = m(+öv/+öt) Still, that f should have been capitalized.
I did mention it being midnight and the failure to capitalize some letters is hardly surprising. However given the context in which the formula were used, no-one should have a problem with understanding the p = momentum and not pressure and that f = force and not frequency. The GTFO noob was in reference to if you wanted a tldr then you wern't getting one. There was nothing derogatory about it intended.
This one's a bit over the edge guys.
Locked for breaking... well, pretty much all the rules.
- CCP Falcon |

IHaveCandyGetInTheVan69
Angry Mustellid Iron Oxide.
272
|
Posted - 2012.11.20 08:12:00 -
[26] - Quote
Webvan wrote:/me goes to make sure the switch at jita which produces fluidic space and ceases Newtonian physics, is still in the [ON] position rendering all maths in this thread inert. Check.
Because Newton lived and worked in a vacuum and none of his principles apply outside of one? |

Tarvos Telesto
Blood Fanatics
64
|
Posted - 2012.11.20 08:34:00 -
[27] - Quote
Very good video lecture by Professor Phil Moriarty's.
If you like physic and games, must see, Professor mention mass, vielocity, quantum momentum, wormholes etc, its about how games works it self due to physis, and how games imitate physis.
Physics of Portal 2
|

Hazen Koraka
HK Enterprises
66
|
Posted - 2012.11.20 08:43:00 -
[28] - Quote
Exactly why equations should not be posted on an internet forum about internet spaceships 
All newton's law states is that the sum of the forces involved (these are usually resolved as vectors - direction is important!) = mass * acceleration on that body.
The three laws are in effect:
First law: If an object experiences no net force, then its velocity is constant: the object is either at rest (if its velocity is zero), or it moves in a straight line with constant speed (if its velocity is nonzero).
Second law: The acceleration a of a body is parallel and directly proportional to the net force F acting on the body, is in the direction of the net force, and is inversely proportional to the mass m of the body, i.e., F = ma.
Third law: When a first body exerts a force F1 on a second body, the second body simultaneously exerts a force F2 = GêÆF1 on the first body. This means that F1 and F2 are equal in magnitude and opposite in direction.
Pasted directly from wikipedia.
http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion |

Hazen Koraka
HK Enterprises
66
|
Posted - 2012.11.20 08:45:00 -
[29] - Quote
ISD Suvetar wrote:From what I'm led to believe; EVE's simulation deals with space as a Superfluid rather then a body of space that accurately models newtonian physics; which in and of itself is a misnomer as we know that Newtonian physics are only good enough for non relativistic speeds.
So it approximates what *feels* right to a person, but is not at all mathematically correct, except for being correct as far as the EVE Physics model goes.
Now, an interesting question (to me is) what would EVE be like if we had a space physics model like the old games Independance War and Edge of Chaos had ?
I loved the physics model in those games! It was awesome to be able to use a Saitek Joystick, and have the hat control configured to thrusters, and do some awesome manoevers and flying :) |

Inquisitor Kitchner
Galaxy Punks Executive Outcomes
488
|
Posted - 2012.11.20 09:48:00 -
[30] - Quote
Nanatoa wrote:We all know that movement in EVE flies in the face of Newton's First Law, but what's the status of his Second and Third Laws?
In particular, I'd be interested to know if, when bumping, increasing my ship's mass by x% will have the same effect as increasing my velocity by x% (since F=ma). Furthermore, will all my F result in precisely -F for my target?
To put this differently: exactly how does Destiny handle collisions between ship balls?
Oh definetly the third law, for example:
Quote:Law III: To every action there is always an equal and opposite reaction: or the forces of two bodies on each other are always equal and are directed in opposite directions.
Miners get a buff to their hull HP, miner bumping is born.
I'm pretty sure mass effects stuff like bumping though. "If an injury has to be done to a man it should be so severe that his vengeance need not be feared." - Niccolo Machiavelli |
| |
|
| Pages: [1] 2 :: one page |
| First page | Previous page | Next page | Last page |