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Geodesic propulsion

Star reach

Aerospace
Mar 12, 2025
10
Hi.
I need a device build that will test the feasibility of a geodesic propulsion.
For more physics info I will recommend you reading the following papers:


As you know from GR physics 1.1 every object has it's own geodesic through spacetime, for example a ball stationary in space has speed of c in time and a ball moving close to c in space has a temporal velocity close to 0.
Interesting thing happens when you add a gradient in spacetime, when one side of the object experiences slower time than the other side, the object will gain velocity towards the region of slower time, because every point of the object has to experience the same passage of time the universe will balance this by accelerating the object towards the slower time zone.
Essentially I want to create a device that will trade part of its temporal velocity to a spatial velocity.

I won't bother you with more physics but I assure you this is just a tip of the iceberg.


I need a two solenoids 20cm long attached at 90 degrees on a shaft so that when it is spined at highest possible rpm they will be free to move on the shaft towards the point of highest velocity.
According to my theory the solenoids should gain momentum, the question is at what speed of rotation and if possible the stronger the magnetic field the better. Superconducting solenoids should increase the effect because of the much higher field strength.
Here is a simple drawing.
Device (1).jpg
 
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well then hurry up and build this thing if its so simple.
Didn't you see my first post in which I said I need this device build which means I need someone else to build it because I don't have the technical expertise.
And yes the first ones are simple to build.
For the more advanced ones I think we need institutions.
Something like the Manhattan Project 2.0 .
 
Play nice ! To paraphrase Sheldon (TBBT) “There's a fine line between (fanciful) dreamer and visionary. Unfortunately, you have to be a visionary to see it.”

It may be easier (or maybe no harder) to dream of warp drives, folding space. Indeed this may be way to express "warp drives" with our current understanding.
 
Can you stop with the jokes please.

Essentially this is the concept:
Objects free fall in a gravity wells because the passage of time lower in the gravity well is lower than the higher you go.
So imagine a rod perpendicular to the surface of a gravity well (there is difference of the passage of time across the rod) this is what I call delta t (Δt)
Δt=t2-t1 ,where t2 is the highest point of the rod and t1 is the lowest point of the rod which is the difference of the passage of time from the bottom of the rod to the top.
But in free space away from any gravity, there is only one way to artificially create that Δt and that is time dilation caused by velocity, in this case angular velocity where we can recreate the exact Δt from a gravity well by rotating the rod so that the t1 point will be the point of the highest angular velocity(and hence the lowest passage of time) and t2 (the point of 0 angular velocity), so the rod's motion in free space can be described as conical motion.

The goal is to make the rod free fall towards the point of the lowest passage of time in this case the cone's base where the t1 point is located.

Screenshot 2025-03-22 181758.png
Screenshot 2025-03-22 181818.png

For more visualization I will suggest watching this educational video.

 
1) AIUI (as flawed as it may be) gravity warps space-time. Or possibly better expressed as our best model for gravity is something that actually warps space-time (Einstein) but in most "real world" situations it can be modelled as a force (ie Newtonian physics) ... and modelled amazingly well. Newtonian physics allows us to sling-shot satellites around distant planets on their way to intercept more distant planets.

2) You talk about a rod in a gravity well. Ok, what are the forces on this rod, due to the difference in gravity ? I expect they are pretty amazingly high !

3) And this is the distance between Engineers and Scientists ... Scientists may propose ideas (eg a space elevator) which are beyond our ability to build; Engineers would probably react "ok, great idea, lousy practice" and some may try to address the problem (strength of materials, nanotubes) but most of us settle for things we can build.
 
1) AIUI (as flawed as it may be) gravity warps space-time. Or possibly better expressed as our best model for gravity is something that actually warps space-time (Einstein) but in most "real world" situations it can be modelled as a force (ie Newtonian physics) ... and modelled amazingly well. Newtonian physics allows us to sling-shot satellites around distant planets on their way to intercept more distant planets.

2) You talk about a rod in a gravity well. Ok, what are the forces on this rod, due to the difference in gravity ? I expect they are pretty amazingly high !

3) And this is the distance between Engineers and Scientists ... Scientists may propose ideas (eg a space elevator) which are beyond our ability to build; Engineers would probably react "ok, great idea, lousy practice" and some may try to address the problem (strength of materials, nanotubes) but most of us settle for things we can build.
''beyond our ability to build''
I don't think some spinning sticks are beyond your ability.
 
In fact the gravitational time dilation between the top and the bottom of a rod of 1m is so small yet it causes 1g of free fall acceleration on the surface of Earth.
In fact if 3km/s of differential velocity is achieved it would mean the same time dilation gradient as between the surface and geostationary satellite time dilation at 3km/s,
and an altitude of 35000km.
So we are compressing 35000km of gravitational time dilation in 1m of kinematic time dilation in this example.
As you can see from this graph kinematic time dilation can easily match gravitational time dilation when in few km/s range.
Time_Dilation_vs_Orbital_Height (1).png
 

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