*blocks your space exploration*

its for all matter, but we do know that at a certain radius from us space is expanding away "faster than light"

so the concept exists

Since you use a "real" name (unlike most everybody else here), I can identify your posts.
Can I ask a question?
Have much physics have you studied (and learned)?

Not trying to put you down, but you seem to have fallen for a number of sensationalistic pop-sci memes.

he said theoretically
maybe it isnt, but if it was theres plenty of reasons why they might not. maybe they just really hate you

Fair point. But the Universe is also incredible old. Enough time has passed for alien civilizations to colonize giant swathes of space. Maybe they hide themselves but that's all speculation.

HAHAHAAHHA ALITTLE KIDDY BOY THINSK HE KNOWS HAHAHAHAHAHHAHAHAHAHHAHAHAHHA
HE HASNTE VEN HAVE HAD 2 YEARS OF DOING NOTHING BUT STUDY PHYSICS 8 HOURS A DAY

I ALREADY HAVE 25 YEARS OF THAT
AND THE PEOPLE WITH 40 OR 50 PLUS ALL AGREE WITH ME
CANT BEAT THE LIGHT SPEED
SO HAHA BUTT OBLITEEAREATED BOY WALK ON HOME DEFEATED LITTL EINFERIOR

>maybe they just really hate you
All the more reason to come down and deal with this non-zero risk.

Physics is not my field of study (i'm more a biology guy). I spit on the pop-sci BS.

Must be a glitch in the simulation.

the speed of light isnt a constant and everything we know is embarrassingly wrong. humanity would suicide

Fair enough.
FTL leads to really really serious problems with physics.
The Alcubierre drive and wormholes are genuine solutions to the Einstein equations.
No one is denying that.
But they all require "exotic matter", matter with a tensile strength greater than it's own mass. (It may seem dimensionally incorrect to compare "mass" and "tension" but that's the way it comes out in Einstein. There are conversion factors I'm glossing over here.)
Anyway, there are proofs that ANY superluminal scheme requires "exotic" matter.
And there are good reasons to believe it doesn't, and can't, exist. Most physicists would dismiss it out of hand, though they'd admit they can't prove it's so.

Steven Hawking has proposed a "chronology protection clause" which would absolutely ban FTL (as well as time machines and "naked" singularities) If created quantum fluctuations would instantly destroy the device before it could be used.

If you're interested in a non-mathematical (but definitely NOT pop-sci) introduction to the field, read Kip Thorne's book
>amazon.com/Black-Holes-Time-Warps-Commonwealth/dp/0393312763
Note this edition has "Nobel Prize Winner" stamped on the cover. That was for LIGO.

>You have to travel 10 years to nearest star
>blocks
t.brainlet

call back when you make a spaceship out of space

You can reach other stars without exceeding the speed of light, nearest stars are reachable within couple of decades with drives we can design even today.

something wrong with your method or data. ancient civilization measurements were very close to the modern one so it seems very unlikely to have shrunk that much in a few decades

>ancient civilization measurements
>of the speed of light

...

...

>ancient civilization
>a few decades

If you accelerate to at least 10% of G (Earth's Gravity 9.8 m/s^2), your ship will reach over half of c. Using this method you could reach Alpha Centauri within 12 years with minor relativistic effects.

>Bernard's Star - 14 years
>Sirius - 17 years
>Epsilon Eridani - 19 years
>61 Cygni - 20 years
>Tau Ceti - 20 years

>Alcubierre drive
>Wormholes
Both would violate causality if used for FTL (assuming either is possible).

neither of those surpass that limit. They completely obey it in every sense.

Depends on the type of courses you fly. You don't need to create a CTC with FTL unless you try.

It could be the case if you fly FTL, change your conventional velocity too much at the other end, then FTL back, which is what you do to create a CTC, you'll create an overload as soon as you try to go FTL and run into a wall of Hawking radiation.

>I'm blocked by something I can't even reach

>Bernard's Star - 14 years
>Sirius - 17 years
>Epsilon Eridani - 19 years
>61 Cygni - 20 years
>Tau Ceti - 20 years

Slowboating+Human life extension is the way.
Also we probably won't colonize any other planets, just create space habitats and travel to other stars to research life or astrophysical objects.

>just create space habitat
literally why though?

>unblocks it

>spend 20 years building space habitat with living space comparable to Argentina and controllable weather
>spend 500 years terraforming planet with wrong gravity so that it can resemble Russian Tundra
tough choice

>Slowboating
is this related to motorboating?

>living space comparable to Argentina
forget about it, if its anything like argentinta corrupt politicians will destroy it before it gets anywhere

so make it absolutely any other size
you can build them as big as you want, so long as your material choice has sufficient tensile strength

>travel at high % of c
>touch pebble
>ship is now slag and shrapnel
we need energy shields or heavy duty point defense lasers first, or we're going to get our shit kicked in record time by the interstellar medium

...

>travel at high % of c
>touch pebble
>ship is now slag and shrapnel
centauri-dreams.org/2009/04/03/shielding-the-starship/

Semyonov plots the radiation involved from encountering interstellar gas versus velocity and finds that at speeds much above a comparatively sedate 0.1 c, an astronaut could not be outside the hull without layers of shielding. Shielding the entire ship is problematic. A radiation-absorbing windscreen installed in front of the vehicle is possible, a titanium shield of 1-2 cm workable up to 0.3 c but becoming ‘dramatically thicker with acceleration.

>only 20 years to build a living space comparable to Argentina... in space
>terraforming is the only way to colonize planets
Your opinion has been discarded.

Just make something with imaginary mass.
infinite acceleration!

>>only 20 years to build a living space comparable to Argentina... in space
en.wikipedia.org/wiki/Bishop_Ring_(habitat)
>In the original proposal, the habitat would be approximately 1,000 km (620 mi) in radius and 500 km (310 mi) in width, containing 3 million square kilometers (1.2 million square miles) of living space,[3] comparable to the area of Argentina or India.
>>terraforming is the only way to colonize planets
Every planet you will encounter will be hostile to humans.Either by gravity, atmosphere or by biosphere(which is more valuable unspoiled for studying)

The coordinates are arbitrary, a modern add on, so it seems meaningless. but the speed of light can be found in two other places within the geometry of the great pyramid, when using the metre.

>If created quantum fluctuations would instantly destroy the device before it could be used.
Can you explain why to a brainlet? That seems pretty interesting

Would a magnetic shield work? Have the ship dilate interstellar dust by via an artificial magnetic shield? Realistic or science fiction?

Love Tim Urban's drawings

We could be the first

>Enough time has passed for alien civilizations to colonize giant swathes of space.
There is no reason for any civilization to extensively colonize after it reaches certain level of technological development.
>Maybe they hide themselves but that's all speculation.
We have several Dyson Sphere candidates already.

centauri-dreams.org/2009/02/09/dust-up-between-the-stars/
But there is another way to solve the problem. Magnetic shielding, using large current loops of superconducting wire to create a protective magnetic field, could reflect or deflect charged particles around the habitat. And the advantages of using the magnetic approach are considerable.

Get this: Although the mass of the magnetic shielding support structure is close to that of the hull shielding option we looked at above, the living quarters go from a space seven meters high and ten meters long (in three levels) to a habitat 200 meters in diameter with over 6000 cubic meters of usable volume. Foil bumpers are used to break down incoming dust into atoms and ionize the result, which can be then handled by the magnetic field.

that's just talking about interstellar gas and radiation, not the blunt force rape that rocks of decent size would be
it's speculated that there's more shit between the stars than around them, so we may very well hit something that the shield would be woefully inadequate to withstand

*blocks your Mars colonization*

the speed of light is so annoying because it's almost equal to 3*10^8

>make bowl
>spin it
>now have earth normal on the sides of the bowl
glory to engineering

If we crushed mars into a smaller ball then it would eventually have an acceleration of 9.8

We'll just send the astronauts up to mars with some mallets and tell them to crush it down a bit, then

doing that is a little finicky
you gotta get it perfect the first time or you're fucked

*Slows you down to 17 meters per second*

youtube.com/watch?v=EK6HxdUQm5s

>If we crushed mars into a smaller ball then it would eventually have an acceleration of 9.8 m/s^2

No. If you want Mars to have Earth-like gravity your going to have to make Mars dense enough to provide the same mass. What's your genius method for that?

Just increase the speed of light.

>nearest stars are reachable within couple of decades with drives we can design even today.
Nope.
The nearest stars are tens of thousands of years away with actual current technology, not "what-if" and "maybe" level stuff.
We'll have to invent something new to reach even the nearest stars in a reasonable time frame.

9522058
I see you've done everything you could to remain as uneducated as possible

>Human life extension is the way.
Maybe you could just give up your pipe-dream of personally walking on an alien world.
Generation ships are the way.

>giving up
this is why you fail at life

Simple solution
>AI piloted spacecraft
>Passengers in stasis
>Spacecraft accelerate at 1 mill-gee

Fnet = ma
Fg = (G* m1 * m2)/r^2
so if we set fg to fnet then we set m to m1 we would get
a = (G * m2)/r^2
so we can see that you can either increase the mass or decrease the radius. If we were to crush it then the mass would stay the same and the radius would go down so the force of gravity would go up.

>this is why you fail at life
When we do actually reach the stars, the goal won't be to put you personally on an alien world.

Why are there so many namefags on Veeky Forums, that pretend to be educated and intelligent? Fuck off with your sci-fi/pop-sci shit and study something, cunts.

FTL travel is an anthrocentric fantasy because what most people seem to fall to grasp is that all those lovely planets and stars flew out there across the cosmos in the first place, on journeys over billions of years moving at a fraction of the speed of light.

>Nothing says we can't artificially surpass this limit.
TIL [math] \big( \text{Theory of Relativity} \big) = \big( \text{Nothing} \big) [/math]

t. namefag

Live from under an overpass

>TIL
Go back there.

>not fixing the meter such that c = 300,000,000 m/s

Why the meter was artificially ret-con-re-defined thus totally escapes me.

>relativistic mass
t. underaged
Just go fast, fucking length contraction will shorten the proper time of your journey without bound.

If you even did find an alien planet and land and you can breathe the air you would still probably die of a strange uncurable alien fungus

Not true Honkey, I can just create a stargate wormhole to anywhere in the galaxy by summoning a massive Black Power Hole, cracker

Only need 1g to travel around.

m.youtube.com/watch?v=GgpVe2G9ByE

They're here already.

what are the real life constant acceleration engines he's talking about?

>29°58'44" = 29.979246
gullible faggot

*blocks meaningful space exploration in your lifetime*

Better?

>e=mc^2

Thanks, Black Scientist Man.

It's slowing.

I will be happy to see interstellar probes in next 30-40 years, and prospect of manned travel in 100 years.
Cathedrals weren't built in a day or single lifespan either.

>There is no reason for any civilization to extensively colonize after it reaches certain level of technological development.
Fair enough, but I don't believe that every advanced civilization would go the same route. There should be at least some civilizations that colonized everything they could get their hands on. Is the Milky Way just too young for that and we are actually one of the first?
>We have several Dyson Sphere candidates already.
Interesting, but I can't find realible sources on that one.

Irrelevant. We will assimilate the Universe at 1/300th the speed of light until such a time that all things become one.

reading this thread has convinced me that Veeky Forums is possibly even more brain dead than /pol/
just replace jews for syfy memes

explain further

Interesting, but I can't find realible sources on that one.

home.fnal.gov/~carrigan/infrared_astronomy/infrared_astronomy_master.html

home.fnal.gov/~carrigan/infrared_astronomy/Other_searches.htm

>We will assimilate the Universe at 1/300th the speed of light until such a time that all things become one.
Actually with the speed of light you would be able to colonize only 25% or so of visible universe

>The nearest stars are tens of thousands of years away with actual current technology, not "what-if" and "maybe" level stuff.
We'll have to invent something new to reach even the nearest stars in a reasonable time frame.

Current technology allows us to construct drives capable of reaching nearest stars within 40-80 or so years. Quicker if we develop it more.
Speeds of 5-0% of light speed are withing our technological abilities today, it of course requires engineering but isn't anything that couldn't be done with an effort.
We can probably develop faster means of transportation that would require more breakthroughs and more dedicated resources like Project Starshot for probes where we could have vessels reaching other stars within decades

Who said anything about colonizing. Once the Universe collapses in on itself we will all be one once more. And then the cycle starts again.

pure cynical doubt is flowing from my attitude at your post
there's no way we're even close to 1% lightspeed or reaching anything further than Mars (with humans onboard) within the next century

Laser propulsion is perfectly doable and can send probes to other stars with 10% of light speed
en.wikipedia.org/wiki/Solar_sail

Honestly people. It's more realistic if we become immortal cyborgs first. Then we can worry about space travel and shit. At that point, time becomes irrelevant. We will assimilate the world. Planets turned into machines. All living this categorically organized and preserved in off-world habitats. Energy is the limit.

we're not gonna be a legit to communicate with them