Faster-than-Light Travel is Impossible (Revised 2nd Edition)
303 replies, posted
...no
social commentary is kind of like a show's views on the type of situation of the world
it's hard to explain so i'll let [URL="http://en.wikipedia.org/wiki/Social_commentary"]wikipedia[/URL] do it for me
Who cares about social commentary, I wanna watch Star Trek.
[QUOTE=Lord of Ears;32308275]a gram is $25 billion[/QUOTE] Yeah, the article is from 1999 so I was figuring it would be considerably less expensive. But still $25 billion per gram is quite a sum of money.
[QUOTE=mobrockers2;32308360]Oh, so its like feedback from the people then right?
That's bullocks anyways, the producers only look at the feedback the shows get in the US, no matter how well they do in the rest of the world, one of the main reasons for the lack of Star Trek and StarGate I'm having right now.[/QUOTE]
Sliders is sort of like a proto-stargate with hilariously bad special effects.
By social commentary, I mean it poses (not directly or explicitly) questions about our society through its exploration of other societies.
$25,000,000,000.00
About what it would cost according to that one guy saying it would take 3 solar masses or something.
inexpensive when we're talking about bending spacetime
[QUOTE=Dysgalt;32308445]Yeah, the article is from 1999 so I was figuring it would be considerably less expensive. But still $25 billion per gram is quite a sum of money.[/QUOTE]
There was that proposed design for an orbital antimatter collector which was estimated to cost (with blowouts) $2 billion which would harvest antimatter on a microgram scale.
[QUOTE=Contag;32308473]Sliders is sort of like a proto-stargate with hilariously bad special effects.
By social commentary, I mean it poses (not directly or explicitly) questions about our society through its exploration of other societies.[/QUOTE]
Tbh if I wanted hilarious bad special effects I'd watch ToS, I'll check out this sliders though, hadn't heard of it before.
[QUOTE=Contag;32308509]There was that proposed design for an orbital antimatter collector which was estimated to cost (with blowouts) $2 billion which would harvest antimatter on a microgram scale.[/QUOTE]
[url]http://www.niac.usra.edu/files/studies/abstracts/1071Bickford.pdf[/url] Is this what you were talking about?
This is based on the idea that light is the fastest moving thing moving in the universe.
Perhaps we are wrong and that time dilation does not increase as we approach the speed of light, but perhaps when we approach something else, which is faster than light.
[QUOTE=Lankist;32307611]yeah except anything that goes through a singularity isn't coming back out in the same shape as it was before[/QUOTE]
If the singularity in question is ring-shaped (found in rotating black holes) it should be possible to pass right through without ever coming in direct contact with it!
It seems like a lot of scientists based their results on the concept that something cannot exist unless it is being observed, and to observe it we ([B]as humans[/B]) need to see light (lights reflection off of it).
[QUOTE=Remscar;32309232]This is based on the idea that light is the fastest moving thing moving in the universe.
Perhaps we are wrong and that time dilation does not increase as we approach the speed of light, but perhaps when we approach something else, which is faster than light.[/QUOTE]
Well you're quite wrong my friend until proven otherwise.
For example we have the Lorentz Transformation [url]http://en.wikipedia.org/wiki/Lorentz_transformation[/url] which Wikipedia can explain with greater detail and effectiveness than me.
And "Relativity of simultaneity" which goes of the Lorentz Transformation in which you observe someone do an action, but the synchronization of it is not absolute since we each have our own frame of observation, yadda yadda. [url]http://en.wikipedia.org/wiki/Relativity_of_simultaneity[/url]
The only particle that could be faster than photons would be a Tachyon, which causality says it cannot exist, but in the quantum field theory they can exist along with Bosonic string theory in a Tachyonic field. BUT in that they're treated as instabilities, and to much of an instability to be existent, from there shit gets really confusing. If you're into General Relativity the Alcubrierre metric allows them to "exist" but they're not a Tachyon in convential sense, due to the fact that its only local FTL to an extent.
[QUOTE=Yahnich;32309524]So much optimism here. The speed of light is the absolute limit, unless all the people that did experiments relating to the speed of light fucked up and did it wrong.
The way to do it is 'cheat' and optimize alcubierre drives and wormholes, although wormholes would have to be made as far away from earth as possible because of the whole black hole thing.[/QUOTE]
Thats only in Schwarzschild Wormholes/Einstein-Rosen bridges. . which we don't want. We want the wormholes defined by Kip Thorne and Mike Morris.
[QUOTE=Sleepy Head;32298650]from what iʻve heard, i gathered that if one somehow had the ability to travel at the speed of light, time would not exist...is this correct?[/QUOTE]
that's like saying time stops in a dark room
[QUOTE=Remscar;32309232]This is based on the idea that light is the fastest moving thing moving in the universe.
Perhaps we are wrong and that time dilation does not increase as we approach the speed of light, but perhaps when we approach something else, which is faster than light.[/QUOTE]
Except that through experimentation, we can calculate exactly what this value is, and it just happens to equal the speed of light. Basically, we can determine time dilation effects at particular velocities, and extrapolate from there. There have been so many experiments done to establish that the speed of light is the limit that it's not really up for debate anymore.
[QUOTE=Yahnich;32309825]Right, the ones that can be made stable using exotic matter right? That's another thing that boggles me a bit, how can we make matter with a negative mass. That would imply that if you hit it with a hammer it would hit you in the face[/QUOTE]
Exotic Matter is to ineffective/weird for me. I prefer wormholes in the pure Gause-Bonnet theory, which is basically General Relativity modified for spatial dimensions + wormholes and that stuff to exist. Which of-course leads back Brane stuff and eventually M-theory.
As to the hammer hitting you in the face, where a helmet or something, since I have no bloody clue.
[QUOTE=Im Crimson;32309240]If the singularity in question is ring-shaped (found in rotating black holes) it should be possible to pass right through without ever coming in direct contact with it![/QUOTE]
yeah or you could get ripped apart in 360 degrees of bullshit
BRB building Hiigaran Mothership.
[QUOTE=Atlascore;32298547]Until we have the ability to make a machine move at the speed of light we can't truly say it's impossible, we have no way to actually test this.[/QUOTE]
Except we have. Particles in an accelerator such as the LHC move at relativistic speeds. According to [url]http://lhc-machine-outreach.web.cern.ch/lhc-machine-outreach/lhc-vital-statistics.htm[/url] the LHC is 26 659 meters in diameter and the revolution frequency is 11.2455 kHz. Some simple math, then, translates the velocity for one particle to about 299 800 km/s. C (the speed of light) is 299 792 km/s but I've probably made some rounding error somewhere. Point is these particles move at 99.999% the speed of light. But they never quite reach it.
[QUOTE=mobrockers2;32308041]I knew you would post at some point :3:[/QUOTE]
Good guess, mate.
[editline]15th September 2011[/editline]
[QUOTE=Lord of Ears;32308138]avon tells it like it is[/QUOTE]
*tells how current physicists describe the world*. Who knows what things we discover in 100 years (I wish I was borne 500 years later :( with the words of a "image macro" posted lately on FP: "Born too late to visit the moon but to early to explore space")
[QUOTE=aVoN;32310500]*tells how current physicists describe the world*. Who knows what things we discover in 100 years (I wish I was borne 500 years later :( with the words of a "image macro" posted lately on FP: "Born too late to visit the moon but to early to explore space")[/QUOTE]
But at just the right time to make it happen
[QUOTE=Atlascore;32310694]500 years from now it'll be: "Born too late to explore space, but too early to explore the 10th dimension"[/QUOTE]
ITU:always too late for something
Everyone on the internet is a physicist.
I once read a great sci-fi series about trains in space that could travel faster than light because their tracks ran along a cable of material that bent space around it, so that travelling at 70kph within their tunnels became 70 lightyears per hour or something.
If we could create some sort of element that allowed us to stretch space like that, we could do it.
it's possible to stretch space, just takes loads of energy
Me too. And so's aVoN.
Which is probably why he said everyone on the internet is a physicist.
FTL is effectively time travel, you break the most fundamental aspect of science (causality) if you have either.
[url]http://sheol.org/throopw/tachyon-pistols.html[/url]
I'm still in high-school and I know a fair share of physics. Since a friend who is getting a degree in nuclear engineering taught me a bunch of physics stuff. Wikipedia and Wolframalpha also help a-bunch.
i read books
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