/hover/ - Hovercraft and Advanced Technology

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FTL is pretty much never ever, not only because it fucks with relativity, but also because it breaks the rule that "causes must precede events," which would fuck up any normal logic.

http://archive.is/0DaHi

<FTL implies time travel

>Consider a duel with tachyon pistols. Two duelists, A and B, are to stand back to back, then start out at 0.866 lightspeed for 8 seconds, turn, and fire. Tachyon pistol rounds move so fast, they are instantaneous for all practical purposes.

>Now, according to A (since in relativity all inertial frames are equally valid) B's the one who's moving, so B's clock is ticking at half-speed. Thus, the tachyon round hits B in the back as B's clock ticks 4 seconds.

>Now B (according to relativity) has every right to consider A as moving, and thus, A is the one with the slowed clock. So, as B is hit in the back at tick 4, in outrage at A's firing before 8 seconds are up, B manages to turn and fire before being overcome by his fatal wound. And since in B's frame of reference it's A's clock that ticks slow, B's round hits A, striking A dead instantly, at A's second tick; a full six seconds before A fired the original round

>FTL still can can bite you in non-instantaneous cases; where we're only going a "little bit" faster than light.

>If you warp out, go to Tau Ceti, then with normal reaction engines accelerate away from earth, warp out again to go back to earth, you will indeed get back before you left

>>836

Embed related shows that a laser could move it's endpoint FTL, which gives me an idea,

Imagine a big, rotating, long range laser on a space station that could point somewhat accurately to somewhere far away enough, like mars, where the lag when sending a normal signal is large enough to be noticed. Now imagine that on mars, you have 2 light receptive plates, A and B, so that when the laser shines on A, it registers it as a 1, and when it shines on B, it registers as a zero. When the laser is on the ground, it simply does not register anything.

Now, simply by rotating the laser fast enough, couldn't you type out a binary message faster than light? Would it break casualty, thus fucking up our entire understanding of the universe?

>>836

Go back to >>>/sci/

>according to relativity

Its a theory.

>also because it breaks the rule that "causes must precede events,"

Which quantum mechanics already broke. There are many different realities.

Time travel may be viable but difficult to achieve.

If nothing goes faster than light, then how come light cannot escape black holes?

>>840

What I meant is that theories shouldn't be dogmatic but should be amended when new information becomes available which means you shouldn't treat theories as absolute laws and saying things like

>FTL is pretty much never ever

Also consider that assumptions in theories may still not be entirely right even if they seem to be and that many scientists claim to know the papers they cite when they don't

Also see;

>>530

>>205

Its fine to talk science here but preferable if you keep an open mind, at one point people insisted that people would never fly and that the earth be flat but explorers noticed that due to curvature ships seemed to sink when approaching the horizon

Like that we now notice that light might not escape black holes but X-rays do implying that light is slower than the "density" and xrays faster or more radiant or something but again this is merely an observation

>>837

Thanks for the laser vid and idea. The vid explains it pretty well

Also consider that the earth is turning around itself at a speed and going around the sun at a speed and the sun is moving in the galaxy at a speed there are many speeds added which also could result in faster than light travel

>>443

Even light can be faster than light. Speed is nonlinear and depends on local speed of time passing. That's the relativity.

>>1190

Actually, acceleration is nonlinear while speed can be linear

>>1192

For me thinking about this in ways of acceleration and stuff is kinda boggling for me ( brainlet here )

Here's my problem:

https://8ch.net/sci/res/5432.html

It would be nice for me to clarify this out.

>>1195

Yes, that all makes sense, but nowhere nobody in discussion about speed is talking about place of observer.

Let's assume we have two objects that have distant(static(doesn't move(change position) observer) ["O"]…

Object["A"] v = 0.7C

Object["B"] v = 0.9C

Assume t of v is measured inside Object itself.

Total v kinetic force in kinetic force of collision of A-><-B cannot be higher than c due to time dilatation?

Correct?

Time dilatation is really huge then.

Time then don't exist virtually exist? Or… What's the speed of passing time applied to "knocks of quantum fluidum" measured for photon?

A->

<-B

Passing each other… Relative speed of A measured on board of B this time… The time that has passed for A to change X amount of position in one direction then is greater than one measured on B.

Assume T(Temperature is ticks of brown Noise)

It is not. T is Kinetic Energy(Transferable by collision) of particles. also related to time… At different time tick, same matter have different Joules/Sec energy transmit. Similar principles apply to smaller than atomic particles.

Due to time dilatation, when you approach C, this thing of distant observer actually changes,… Wavelengts of emmited particles also change…

Photons pass energy, because their speed is so low, time applies for them for a while. Their energy is large and after collision they're something else because mostly them absorbed are heat and that means they passed energy are slower and wave lengths are different.

By collision it simple happens so they can also induce electrons to move. They just pass energy, to have gravity field, they must slow down, because it applies in time, they are never actually at speed which is maximal, due to gravity applies them.

Interaction with gravity happens over time thus photons are influenced(gravity lens), but they are influenced over long time and very little if at all… That's if we measure time of photon.

Energy transactions can only happen in time and at v = c time stops?

For O there is still two objects approaching each other faster than c… No problem with that, it's not self-related speed.

But if in ABO triangle there may be Observer(measure time) for which speed of coordinates of another subject but to subject related change would be greater than C?

B accelerates to 0.9999c, time is slow really slow.

Like there's time dilated for B already by position on space, and then C starts moving at 0.999999c, which results in the fact, it's moving at over C(observer B), because simply more shit happens for C than for B thus C(self relative) positions change more faster than self relative position of close photon to B)

TL;DR It's fucked up maan, nobody measured time on photon while measuring it's speed, and speed of something for clock not on something isn't something c as litim applies for.

Correct me somewhere without link please, I've got so much ADHD when I start with this on wiki I end up non showering for a week browsing some quantum entanglement shit,

Thank you.

I've got worked out some theories, but I have problem formulating them, because there is some terminology.

I could describe situation in a Matrix of 3D coorinates maybe better.

bepatientihaveautism.jpg

>>1195

Also I have problem of frequency …

Elektricity AC50Hz… Okey, amplitude changes… It has some amplitude that's about 15000km width(I don't know speed at which it travels), so if we transfer over wire that is longer and has no resistance we would have inverted amplitude? That's kind of easy to imagine?

Light ( I don't remember ) Hertz… It got nanometers as wavelenght… If we graphed and got this oscilloscope effect on length of those amount of NM, what would we see…

It changes amplitude alse? Why it's blinking? It's sinusoid? Almost everywhere when waveform is tried to be captured it's sinusoid…

Is it noise? If it repeats it's not noise then it cannot have frequency…

Bullet is rotating, are particles travelling doing this too.

We have a tunnel, where we have vaccuum and object, accelerated to go fast… We start rotating this object around centre… We mark a point somewhere around it's diameter… How fast point going? Is there a limit for that point or whole object? What happens?

>>1195

On relativistic Doppler wiki thinks somebody would encode time in transmission of clocks by the amplitude and not encode it in waveform. They're kind of stupid.

>>1198

Relativistic doppler effect means energy recieved can be more than energy emited if emiter is moving towards us?

>>1196

From the wiki;

>This constancy of the speed of light means that, counter to intuition, speeds of material objects and light are not additive. It is not possible to make the speed of light appear greater by moving towards or away from the light source.

Keep in mind that photons are massless and sometimes present themselves as particles and sometimes as waves. The electromagnetic radiation has variable characteristics.

>>1197

Static noise and impulses are more common in nature I think.

>Bullet is rotating, are particles travelling doing this too.

This is what creates the frequency in most cases; rotation. When you put electricity on a coil you get rotation which makes it have frequency in the form of a sinusoid.

https://en.wikipedia.org/wiki/Sine_wave#occurrences

When you rotate a projectile, it will maintain the course better, like with rifling; https://en.wikipedia.org/wiki/Rifling

Faster twist rate of the projectile might slow the projectile, but it might not be noticable unless the twist rate is very high.

>>1201

So speed of rotation and speed of bullet doesn't add for a point on bullet?

>>1201

Yes, they don't add to inertial frame and speed is absolute value, so speed of light is not affected moving fast/slow, there's just frequency shift?

But when I have frame where time is passing slower, light passes more distance in a observed frame per year(in frame) than a year observed in different frame…

Does this mean, that there is :

If we could observe frequency at distance there would be frequency shift for sure.

If speed remains the same, the distance should be same as light year in dilated(slower ticking) frame, relatively observed objects with faster flow of time should then be "larger" if the distance remains the same.

If time goes at 0.8 compared to reference somewhere, the light in 1 year of reference passes just 0.8 light year there, thus it's not going at the speed for light for the reference… Or the distance changes. What happens there?

So interstellar travel for example have changes in speed of travel related to twin paradox even by gravity being absent, not only acceleration… Therefore… It can takes i.e. lights to reach us like 8 years. At 0.5 we would be there in less than 16 from travelers perspective, because it takes light 16 our years to reach that?

What exactly means light doesn't have mass? It just doesn't have length so there's no surface to interact with, and if some length happens for a while it behaves like it has surface. Mass is only present for objects with surface imo.

Oscillating time ticking with direction could cause you to move like a worm… You would have short space in front, you will move into, and longer behind you, you would move in short space, and once you'll cross distance, you'll expand space after?

That means you would just be attracted by the gravity. Nothing personal.

That's how gravity works.

#[0]

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|---------------------|
|					  |
|		===			  |	
|	       |-()   *G  |
|		===			  |
|	Frame[1]		  |
|_____________________|

	Frame[0]

Effect of that drive you linked on wiki happens in field like this if *G is strong gravity

[::Gravity is propably not static field, so it should happen::]

Your gravity should be "STATIC" to you in front of you, so accelerations happen and should not have effects to Frame[0].

Imagine surface being flat, you are attached to it by 10m/s but it never reaches a stop point thus it's accelerating all the time with you having proper gravity. ??

Thing to maintain is that you're actually not that affected as matter around you(ship), so you're already pushed <- direction instead of -> due to your innertia and fact you are accelerating.

This can be maintained so you have proper 10m/s if you're also at the same moment accelerating towards the way of ships acceleration. Wanting to have ship going so you don't have to look up is technologically "harder" and not necessary, why all pictures of spaceship think you need 3rd gravitational or for this purpose maybe centrifugal force? Also flying in spiral can provide this G, so you can look forward, but it's really more simple to look up.

______

[#1]

How can you induce gravity without no exotic shit?

Innertia drive:

Imagine three big rings around the ship. They are like bycycle, mass of wheel is bigger than mass of rest.

If we try to slide three balanced rings simultaneously in 0G env, would the ring moves towards us or we towards the ring?(Ring has bigger mass).

[#2]

[0]

Magnets in outer space… Two magnets with exactly same mass but same magnetic field would move towards each other equally.

One magnet has bigger mass, thus more force is required to move it. Therefore it's moving towards it.

[1]

If we put stick in between, movement will stop. But… Acceleration would still be there. If we place two magnets as I talked about before, the magnets are "going after each other with equal force".

If one magnet takes more energy to move than another, movement could happen, because there's slight inbalance of what's the force applied on…

[#3]

Rotary magnetic fields.

If we induced a field in electromotor with 0G field, the both sides of motor would rotate, creating centrifugal forces where there's one stacked direction (outwards) but opposing direction elsewhere.

If both those rotating objects apply acceleration going outwards, therefore in space where acceleration is applied, time's going faster. There's also space that want to strech in both directions, clockwise and counter clockwise. The space stretches and streching is applied to get space stratched to the outwards, space is however a ting that has some will to remain seme density, simillar to pressure. There's a lot of space streched there and space as elastic thing is trying to counter that therefore between the rings there is field which concracts the space and is literally sucking it.

Also a layers of magnets between this could create something atypical, because magnets have some property that they want to form one huge magnet but this could would be like all time repealing field that would push gravity there to have less effects and matter will stick together thanks to ionization.

[#4]

Can somebody prove me why magnet on stick doesn't work in outer space if mass of two magnets is different?

Does anybody here have skills in computational fluid dynamics?

….

CIA, bring me Pizza, I can construct really wierd stuff you had in 50's…

>>1204

Dissapointment that code is not monospace is really huge.

>>1202

The velocity of the bullet might be reduced by the rotation of the bullet but its negligible unless the rotation rate is high. If the rotation rate is too high, the bullet might be torn apart.

Some of these queries are not making sense.

>Yes, they don't add to inertial frame and speed is absolute value, so speed of light is not affected moving fast/slow, there's just frequency shift?

Frequency of what? Are you referring to an example?

>If time goes at 0.8 compared to reference somewhere, the light in 1 year of reference passes just 0.8 light year there, thus it's not going at the speed for light for the reference… Or the distance changes. What happens there?

This might be a bit like the magnetic field affecting a metal bullet in this example;

https://hackaday.com/2018/06/10/coming-back-to-curving-bullets/

Imagine there being a black hole or some time dialation effect cause, which is like the magnet.

The light would be like the metal bullet. Yes it does affect it but it might take a very strong field to cause it to curve. By curving the path of it, it may be slowed down slightly, compared with other light going in a straight path. If there were a field with different rate of time (Like in the time travel institute material) then you may have some kind of warp, in which you travelled the distance in less time than what would be given normally, but at this point its purely hypothetical.

The traveller's clock would be perceived the same as usually from the traveller's perspective, but there might be difference in the passage of time between someone on earth and someone travelling. The distance and time travelled by light/traveller should be regular unless affected by something like gravitational fields from black holes or other things in space.

Particles can have mass, but light generally doesn't. Maybe some ufo's can turn off the mass somehow to instantly warp to other places