[WS-Thunder]

Hey, I'm currently trying to figure out the physics on an idea I had. Lets say you have a ship that repells gravity or that even floats in space. To conserve space on the ship and to conserve on extra weight, how should I arrange the engines. You need different engines to change direction. So, instead of having three engine on the back, one for forward thrust, one for turning left, and another one for turning right, what if I had a single engine that could turn itself so that the direction of forward velocity changes and in effect, turns the ship. Would it be possible to
do this? Or would I have, to have seperate engines to change directions so that you keep moving forward while turning?

[Corsair]

A ship that repells gravity?

[WS-Thunder]

Typo.

Repels gravity

[IceFire]

How do you repel gravity?  If that were even remotely possible, it would probably collapse in on itself by trying to avoid gravity

Or maybe cause the destruction of any star or planet nearby.  This is a strange one

[NegspectahDek]

Originally posted by WS-Thunder
, what if I had a single engine that could turn itself so that the direction of forward velocity changes and in effect, turns the ship.  

the 3 main engines on the space shuttle do this.  Its called having gimbal mounted nozzles.  Its a fair guess to say that most if not all modern rockets do this because short of control surfaces, gimballing your nozzles is the only way to change direction in an atmosphere.

On another note, we understand what gravity does.  What we don't understand is how it does it.  So we really can't say what is or isnt possible.

People used to think the earth was flat.

[Kamikaze]

Well on gravity there is a theory that a certain particle, the Higgs-Boson or the god particles as some term it , that has recently been discovered (I believe) causes gravity by creating an attrating force which binds the four forces of nature together. (these I don't remember) People think there are 1,2 or 5 of these Higgs in one atom. So if you do some special things with this Boson... you never know

[ZylonBane]

Originally posted by vadar_1
gravity is simply the centrifugal force generated by a large mass spinning.

You know those times when somebody says something so spectacularly wrong that you want to physically hurt them?

[vadar_1]

I withdraw my statements, on the basis im an idiot.
Im sorry to inconvience you with my flimsy physics.

But I still stand on the fact that you cant repel gravity.

[Ace]

Amen Zylon, centrifugal force is not gravity. We're not on Earth because it's a centrifuge

Gravity in the Einsteinian sense is the warping of space-time from matter. Pretty simple.

[Dranon]

Centrifugal force would throw you away, not bring you in.

Think of a merry go round (cheesy i know, but easiest example).  The faster you spin, the more you need to hold on to keep from being thrown off of it...

[NegspectahDek]

Originally posted by ZylonBane
You know those times when somebody says something so spectacularly wrong that you want to physically hurt them?

yup

[Kamikaze]

Originally posted by ZylonBane
You know those times when somebody says something so spectacularly wrong that you want to physically hurt them?

I think sometimes I do hurt them

[WS-Thunder]

Ok, I guess I should have explained this better. I am designing a ship for a game that I plan to develope in a few years when, hopefully I can start my own game designe company. I am writeing a storyline for it and when I get 3ds max, I plan to go ahead and begine modeling this ship. This ship has to be able to fly inside military instalatoins, underground tunnel systems on earth, caves, ecs. makeing precise strikes kind of like in the game Descent 3 but hopefully more realalistic and with it's own ideas, concepts, and plot behind it.

My idea for repeling gravity may sound strange but I thought it was a cool idea. The idea is that some scientists discover a new kind of crystal that when light and heat pass through it, a new kind of energy radiates off from the surface of this new crystal. Everything has a frequency as far as we know, motion, light, sound, ecs. Now imagine if they discovered also that there is a specific wavelength in gravity that this new energy repels against. The energy acts as two like magnets that you can lower the ammount of power or highten the ammount of power on. Now you could set this up inside a titanium sphere with two lasers shining through the crystal. Then the energy radiates and presses against the walls of the titanium sphere. The sphere is placed in the center of a ship so this causes the ship to be forced upwards. You just lower the frequency in the lasers to lower or highten the ammount of energy that is forcing against the titanium surface of the sphere. However, some don't believe that there is a frequency in gravity however, that doesn't mean that one couldn't be discovered in the future reference.

Another idea someone else mentioned is called an anti-mass drive that involves a charged disk that spins at extremely high speeds causeing gravity to somehow warp, therefor decreasing the mass in an object. It is something that a friend explained to me and said is currently being studied by NASA. This guy also mentioned that I could use a coil shape instead of a spinning disk that fits under the cockpit and extends into the wings and such.


Useing a fusion drive to create an anti-matter particle wouldn't work because if anti-matter colides with matter, there would be tremendouse explosion.

Useing a graviton to create a vacume that you can direct and warp time and space with wouldn't work either because while doing so, you might because you could cause problems with the known universe by doing this.

[WS-Thunder]

Those ideas above may be wrong but they do interest me. As for the engine idea, I am figuring to go with the idea that a guided missile has. It has small thrusters on the sides of the ship for turning. I will probably have one on the top, the bottom, each side, under each wing, and a couple more thrusters used for slide and a couple more for the front to stop or to reverse. The idea is that the ships computers will calculate and controle the ammount of bursts the thrusters need to turn the ship in the desired direction. Perhapps this could even lead into trichording or something better!

[NegspectahDek]

Originally posted by WS-Thunder
Those ideas above may be wrong but they do interest me. As for the engine idea, I am figuring to go with the idea that a guided missile has. It has small thrusters on the sides of the ship for turning. I will probably have one on the top, the bottom, each side, under each wing, and a couple more thrusters used for slide and a couple more for the front to stop or to reverse. The idea is that the ships computers will calculate and controle the ammount of bursts the thrusters need to turn the ship in the desired direction. Perhapps this could even lead into trichording or something better!

they already do that

[WS-Thunder]

I was referring to the ship having the thrusters This is what makes it interesting. I'm trying to use real physics and theories to develope a ship

[NegspectahDek]

so was I.

[CP5670]

so was I.

Well on gravity there is a theory that a certain particle, the Higgs-Boson or the god particles as some term it , that has recently been discovered (I believe) causes gravity by creating an attrating force which binds the four forces of nature together. (these I don't remember) People think there are 1,2 or 5 of these Higgs in one atom. So if you do some special things with this Boson... you never know [/B]

Yeah, I think they are trying to find something to account for the fact that particles and atoms have masses and the so-called electroweak symmetry. Currently nobody has been able to observe it or mathematically prove its existence, but it seems to be the only thing that can account for some weird things observed.

[Nico]

well, I don' think boson have been discovered recently, coz in Nadesico (an anime series), they use that for space travel for quite some time now

btw, do you mean an anti-grav? And about the first post, I think ALL ships floats in space

[an0n]

Everything has a frequency as far as we know, motion, light, sound, ecs. Now imagine if they discovered also that there is a specific wavelength in gravity that this new energy repels against

For some stupid reason he's right. The current (most popular) theories are that gravity is either space bending or that it is caused by Graviton particles. If the second is true this also means that gravity could/would exist in a wave form as well and it just so happens that all waves have a frequency and all frequencies can be nullified by superposition. IE you emit a frequency that is 1/2 a wavelength out of phase with the gravity waves and it'd cancel them out. ALhtough I think the opposing directions (ie one towards the ship and one away) would create a standing gravitational wave and I'm not sure how that would affect matter interacting with them......****! Come to think of it there are all sorts of really complicated and intertangling forces and interactions that would be taking place and quite frankly I've just realised that to fully explain them all is beyond me and delves into the realms of extreme scientific theory.

To summarise: WS-Thunder is either really stupid and lucked onto an interesting possibility OR he's really clever and crap at explaining himself.