Sci-Fi Sci-Fi Methods of Faster-Than-Light (FTL) Travel?

If you have the technology to travel FTL then you have it to Navigate safely. When writing Sci-FI don't try and relate to our current physics knowledge. I've even read now that some physicists don't think Black Holes exist so that means the centre of our Galaxy is not one.
 
Black holes don't exist, that is just a nameholder to describe a supermass singularity. In actuality they are not black, the event horizon prevents light from escaping and reaching your detector and they are not holes they are excessively high concentrations of mass. I imagine the mass is super white hot.

Faster-than-light is fantasy, not science fiction. Science fiction is based on actual science. It even delves into theoretical science. The keyword is 'science'.

Recently there was an article that tells how scientists entangled photons and forced them to behave as a particle. In doing so, they caused light to bounce off light. They forced the photons to behave as particles not as a waveform. When they did so, it slowed the photon speed.
Physicists create new form of light: Newly observed optical state could enable quantum computing with photons
Date:
February 15, 2018
Source:
Massachusetts Institute of Technology
Summary:
Physicists have created a new form of light that could enable quantum computing with photons.

In a paper published today in the journal Science, the team, led by Vladan Vuletic, the Lester Wolfe Professor of Physics at MIT, and Professor Mikhail Lukin from Harvard University, reports that it has observed groups of three photons interacting and, in effect, sticking together to form a completely new kind of photonic matter.

While photons normally have no mass and travel at 300,000 kilometers per second (the speed of light), the researchers found that the bound photons actually acquired a fraction of an electron's mass. These newly weighed-down light particles were also relatively sluggish, traveling about 100,000 times slower than normal noninteracting photons.


Neutrinos and tachyons have been disproven to exceed the speed of light in a vacuum.
So far, Einstein is right.
It's Official: Neutrinos Can't Beat Speed of Light
and
Faster-than-light ‘tachyons’ might be impossible after all

"Light Speed" is junk science fiction.
There are possible ways around the light speed barrier.
Dimensional shifting, wormholes (unlikely) and quantum teleporting.
Quantum teleporting is most likely because it has been done in reality but at a small scale over short distances using information instead of mass.
 
Interested in any stories which talk about how the beings in a spacecraft are protected from G forces - do they have to be strapped into a chair or what?

As far as FTL is actually possible we do not know what the fundamental forces of the universe are to break them anyway. Humans should not be too smug about having discovered all there is to know about the physics of our universe. We have only been studying it for a minuscule amount of time! And don't worship Einstein too much - I'm sure he would not have closed the book on it.
 
Einstein and Wernher Von Braun, two great scientist, with out them there would have been no space flight for the United States, Rip gents and thanks! Einstein-Quotes.jpgusa_wernher_von_braun.jpg you two were truly the greatest!:cool::cool::einstein:
 
Interested in any stories which talk about how the beings in a spacecraft are protected from G forces - do they have to be strapped into a chair or what?
There are a number of ways humans protect themselves while in hyperdrive.
Lets see...
There are seat belts & harnesses
Sleep pods / cryo-tubes
Stasis chambers
Inside a symbiotic lifeform
Time bubbles
Within a transporter buffer
Drinking or ingesting a special compound
Mind uploading to an android or the ship itself
Cocooning in a chrysalis
Within a tardis / dimensional barrier
Inside a protection beam
As viable zygotes
As a genetic code
Being genetically modified
Hypersleep / hibernation
Quantum projection

That's all I can come up with at the moment.
As far as FTL is actually possible we do not know what the fundamental forces of the universe are to break them anyway. Humans should not be too smug about having discovered all there is to know about the physics of our universe. We have only been studying it for a minuscule amount of time! And don't worship Einstein too much - I'm sure he would not have closed the book on it.
So true.

1. Hyperdrive

Popularized by Star Wars and used extensively in fiction, a hyperdrive enables a spaceship to travel at FTL speeds by entering another dimension known as "hyperspace." The spaceship isn't actually traveling faster than the speed of light, but rather is making use of hyperspace as a shortcut, and the hyperdrive is the mechanism that shunts the spaceship into and out of this parallel dimension.
Specific coordinates within hyperspace have corresponding coordinates in normal space, but the distance between those two points will be shorter in hyperspace, allowing for a faster journey. Before making a "hyperspace jump," calculations must be made to find the matching coordinates between hyperspace and normal space in order to know when and where to exit hyperspace at the desired normal space destination.

Is it plausible?
Physicist Bukrhard Heim proposed a theory in 1977 that FTL travel may be possible by using magnetic fields to enter higher-dimensional space. The theory uses a mathematical model that calls upon six or more dimensions in an attempt to resolve incompatibilities between quantum mechanics and general relativity, but Heim's ideas have not been accepted in mainstream science. Still, the fact that a theoretical physicist devoted a large portion of his life in pursuit of a theory that could lead to a means of space travel lends the concept of hyperspace a little more credibility than if it were simply the fancy of a sci-fi writer.

2. Jump Drive


Seen in such works as Battlestar Galactica, a jump drive allows for instantaneous teleportation between two points. Similar to a hyperdrive, coordinates must be calculated to ensure a safe jump; the longer the desired travel distance, the more complex the calculation. In theory, there is no limit to how far a jump can take a ship, but an incorrect calculation may result in a catastrophic collision with a planet or space debris.
The Dune universe's FTL, based on the fictional "Holtzman effect," can also be considered a jump drive.
Is it plausible?
Master of hard sci-fi Isaac Asimov was the first to suggest the idea of a jump drive in the Foundation series, which lends some credibility to the idea. However, most fiction doesn't clearly explain the principles of physics that allow for this teleportation, making it impossible to claim a jump drive as plausible. However, if it functions by opening a wormhole...

3. Wormholes
A wormhole, as seen in the Stargate franchise, allows for near-instantaneous travel across vast distances. Wormholes may be naturally-occurring or man-made, but are almost always temporary and serve as tunnels through spacetime.
Imagine our universe as a piece of paper, and an ant walking on that piece of paper as a spaceship. If the ant wants to walk from one end of that piece of paper to the other, the fastest way to do so would be to travel in a straight line. But paper, like space, bends. If you bend the paper into a U shape, the ant's journey goes largely undisturbed - it still has to traverse the same distance along that line. However, in 3D space, the two ends of the paper are very close to each other now. Cut off a piece of a drinking straw and let the ant use it as a bridge or tunnel between the two ends of the paper, and the journey is suddenly much shorter.

Is it plausible?
While we have never directly observed any evidence for one, wormholes are theoretically possible. Albert Einstein and his colleague Nathan Rosen first discovered wormholes in 1935 as solutions to equations within Einstein's general theory of relativity - the math says they can exist.
Since then, other scientists, including Stephen Hawking, have argued that it may be possible to traverse a wormhole, under the right circumstances. The debate surrounding wormholes isn't about their plausibility, but rather how they may be created and sustained.


4. Slipstream
The concept of slipstream can be found in such works as Star Trek, Doctor Who, and the Halo video game franchise, but there is no widely-agreed upon definition of what slipstream is or how it works beyond it being a means of FTL. We'll consider the slipstream seen in Gene Roddenberry's Andromeda, where it is "not the best way to travel faster than light, it's just the only way," as per the show's protagonist.
Slipstream is a form of interdimensional highway in which ships ride a series of slipstream "strings" - the unseen connections between all objects in the universe. These strings are in constant flux and form a tangled mess of intersections and divergent paths. Any time a pilot reaches a fork in the road, he has to guess which is the correct path to take to continue along toward his desired destination. Before the pilot makes that decision, both paths are simultaneously the correct and incorrect route, and it is the act of choosing a path that forces one to be correct and the other to be incorrect - if this made you think of Shrödinger's cat, that does seem to be the basis for this concept. A computer selects the "correct" path 50% of the time, but due to intuition, a human picks the correct path 99.9% of the time.
Is it plausible?
There are no mainstream scientific theories that support this idea of slipstream. Reading the "lore" of this means of FTL evokes fantastical interpretations of string theory, quantum entanglement, and other concepts in modern physics, but the ideas are supported only through their internal consistency rather than actual fact, much like a well-explained magic system that allows fictional wizards to cast spells.

5. Warp Drive


Popularized by Star Trek, a warp drive distorts space around a ship while leaving the ship itself inside a "bubble" of normal space. The space in front of the ship is contracted, while the space behind it is expanded, and the ship "rides" the distortion wave at FTL speeds. Technically, it is not the ship that is moving, but rather space itself, which is how we avoid breaking any laws of physics.
Imagine a surfer slowly paddling back to shore. When a wave comes, it will lower the water level in front of him and raise the water level behind him, and he can ride the downward slope all the way to shore. Relative to the wave, the surfer isn't moving - he's staying between the crest and the trough, and it is instead the wave that is moving.
Surfing doesn't quite work like that, but it's a simplification that we can all visualize. In a similar manner to how a wave will distort water to propel a surfer, a warp drive will distort space to propel a ship.

Is it plausible?
In 1994, the Alcubierre drive was proposed as a theoretical means of FTL travel and is based on a mathematical solution to equations within Einstein's general theory of relativity. Just like a warp drive, the Alcubierre drive would contract space in front of a spaceship and expand space behind it.
NASA has been actively researching this technology since 2012, and the lead researcher even worked with a 3D artist to develop a model of what a warp-capable ship might look like. As far as real-life FTL goes, warp is the current front-runner to becoming reality.

SOURCE: 5 Faster-Than-Light Travel Methods and Their Plausibility
 
...with out them there would have been no space flight... That's not true! That's like saying the if the inventor of the Apple pie hadn't given it to us there would be no Apple pie! Anyway the Cider makers would have soon twigged what gravity is all about if Newton hadn't done it.
 
Thanks for the G-forces suggestions, my own is where teleportation delivery is suspended until arrival coincident with the journey end.
 
I think quantum science may be a way to travel faster than light.
Problem is, something will need to move to the destination (robotic, drone or AI ship with a receiver station) at high speed. Once the receiver station is set up and 'tuned', people are then quantumly teleported to the station.

Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location.
Chinese Scientists Just Set the Record for the Farthest Quantum Teleportation
Spooky pairs

The experiment takes advantage of one of several phenomena that describes quantum mechanics: entanglement, or "spooky action at a distance," as Albert Einstein called it. When two particles are entangled, they remain connected so that an action performed on one affects the other as well, no matter how far apart the two are. In the same vein, when one measures the state of one particle in the entangled duo, you'd automatically know the state of the second. Physicists call the states "correlated," because if one particle — a photon, for example — is in an "up" state, its entangled partner will be in a "down" state — a kind of mirror image. (Strictly speaking, there are four possible combinations for the two particles to be in).

The weird part is that once the state of the first particle is measured, the second one somehow "knows" what state it should be in. The information seems to travel instantaneously, without a speed-of-light limit.

Real science, may not be advanced enough to actually teleport mass but one day, maybe.
Think They Live (1988) where a being steps on a platform and is teleported away.
Perhaps the Q from Star Trek used a very advanced form of quantum teleportation?
Another might be Outer Limits "Think Like A Dinosaur" Season 7; Episode 8 where the baseline sample stays put and only a copy is transmitted.

I like the Outer Limits idea because it could allow you to be transmitted to multiple destinations at the same time. Especially in a settlement scenario where your genetic code will be transferred by reproduction to worlds that are vastly separated. If one you perishes, you still persist elsewhere. Sorta like sending a scanned image to multiple printers around the world.
 
Your first para. agree. That saves Navigation by Pulsar I think?

Real Science is nowhere near doing this!

Multiple copies does not make sense, transferring is not the same as copying and would cause chaos for Enforcement authorities would not be able to control people. Initial teleporting will be local e.g. in-ship.
 
Multiple copies does not make sense, transferring is not the same as copying and would cause chaos for Enforcement authorities would not be able to control people.
Sorta (keyword,sorta) like sending a scanned image to multiple printers around the world.
to worlds that are vastly separated
Essentially, you might be on a world in the alpha quadrant, a world in the gamma quadrant and a world in the delta quadrant, never interacting with any 'copy' of yourself.
You would be contributing your DNA to the vastly separated areas of the galaxy. So, no matter how many generations pass, your DNA will be found.
Its like sending your offspring to different countries to start families. Your bloodline in perpetuated around the world.

If a copy of you (exact in every way) is transferred to a planet in the Norma Arm of the galaxy, you will be both here and there at the same time. The 'you' that is there will experience life differently than the 'you' that is here. While it starts out as you, exactly, it soon changes into a different version of you. But, it maintains your genetic code. If, after a year has passed, that copy is returned to here, it will be a different 'you' than the 'you' on this planet. Same genetic makeup, different personality.

In the Outer Limits episode, the focus was on the morality of Balancing the Equation.
That, when the subject returns, it carries the experience of the displacement. The original had to be destroyed (Balance the Equation) so there was no conflict. Without Balancing the Equation the original remained with its own experiences.

Using that technology, multiple versions could be sent to multiple destinations as one-way trips. No need to balance the equation because there would be no conflict. As depicted in the show, if the subject returns to the origin, it is changed by its experiences at the other location.

would cause chaos for Enforcement authorities would not be able to control people
That doesn't make sense to me? There would never be an actual duplicate, even the transfer process would change the subject, arrival at the destination would change the subject, everything that happens after the initiation of the transfer changes the subjects.
Its like saying twins and triplets cause chaos for law enforcement. Just because two beings look the same doesn't mean they are the same person.
Plus, on the destination planet, sphere, platform, station, there would only be one subject.
 
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Real Science is nowhere near doing this!
Doing what? Quantum Teleportation?
Yes it is and it has been done as justified by the quoted article.
Chinese Scientists Just Set the Record for the Farthest Quantum Teleportation
That is real science.
Who is to say where that real science will lead?
Right now the immediate application is for FTL communication of information.
But, how does a transporter work?
Supposedly it scans your atoms, changes them to code (information) puts them in a buffer and transmits your code to the destination where it reassembles that code back into atoms according to the initial pattern.
So basically, a transporter is teleporting information, which is exactly what the Chinese scientists did.
Not as complex or specific but basically the infancy of transporter technology.
 
That saves Navigation by Pulsar I think?
You lost me?
For quantum entanglement to work the receiving platform must first be in place.
This means something has to make the actual trip. Navigation will still be required.

A trailblazer automated craft could be programmed to drop beacons along the way that signify specific flight corridors.
I like to think of it as a tree with branches only multiple trees moving off in different directions.
The trunk of the tree puts the craft on course for a specific region of space. All craft that follow, travel the trunk beacons until they branch off to their destination areas. They then start laying more beacons for that specific branch.
The trunk layer would need reference points to keep it on target, probably pulsars. As each craft branches out into new territory, they will each need references to stay on their targets as they lay the branch beacons, again, probably pulsars or white dwarfs.
Only the initial trailblazer will use natural reference points for its entire journey.
Only when the subsequent craft branch off the laid beacon corridor, will natural reference points be needed.
Once each craft reaches its destination the quantum receiver becomes active allowing quantum teleportation directly to the platform without navigation.
The weird part is that once the state of the first particle is measured, the second one somehow "knows" what state it should be in. The information seems to travel instantaneously, without a speed-of-light limit.
 
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