/sci/ - Science & Math

>>7089810
>We're fairly certain there's no way for information to exceed light speed.

its called Quantum Entanglement, brah.

:D

>>7089779
>How are WE going to get THEM a message in less than 500 years?

well in the movie Contact they send plans for communication so we wouldnt have to wait, its kind of novel idea.

>notsureiftrolingorreallyreallystoned.jpg

prolly stoned i guess, not trying to troll, i didnt offer bait or anything :/

anywho if your not familiar with the movie Contact it has some good actors and is writen by Carl Sagan, and is worth a watch.

:6)

>>7089276

555 :D

>>7089745
>If the aliens are 500 light years away, how are we going to get them a message in less than 500 years?

hmmm, by them having sent it 500 years ago, it would arrive tomorrow.

:D

dude, just one word....

John-fucking-Titor.

tell them that after starting (or stopping) medication, that this is all 10% factually true, and contains no errors whatsoever and if they think about it for just one minute they will thank you. (also try to pause for one minute for effect!)

>>7089684

hmm, well, they could have a means of communicating to us, we broadcast our bible further than our space probes...

and alien worshippers, like mang, there are hundreds of millions, easy.

so if we find a broadcast that was sent 500 years ago, it would reach us, if they have like late night tv talking about bibles and asking for money, we would have some understanding of their culture religion. so like just to let you know we could communicate with aliens tomorrow for all we know, i mean that is why we listen for alien broadcasts, to receive them if they were sent out some time in the past, and we were to just pick them up now. the movie Contact is a really good example of this, it doesnt mean we would have to wait centuries to have meaningful communication, even if it wast *dialogue*..

>>7089603
>Sure, if we could learn enough by listening in, we might make great scientific and technological advances, but the news of alien life won't topple governments, religions, capitalism or cultures.

:/

ah well im sure that if they were intelligent lifeforms they would debate that.

it would also make all alien-worship cults go out and write/ buy a new bible. right?

not exo-planets, but,

Mars has some life forms, already proven, and my bet would be that something that orbits around Jupiter or Saturn would have life _of sorts_ most probably still unhindered by cosmological cataclysm, which could make have lifeforms more evolved (not intellience wise though) than on our planet.

but not like dr. spock life-forms, but nasa and such still would like sea urchins, water-bears, and moulds.

>>7089538

was only the european church that thought the world was flat and the centre of the universe, right?

>>7071400
>https://www.youtube.com/watch?v=KhFGy6bc7zE

quarter-million views, gosh i love you youtube

>>7071334
>http://www.extremetech.com/computing/151498-researchers-create-fiber-network-that-operates-at-99-7-speed-of-light-smashes-speed-and-latency-records

airplanes traveling faster than sound; man reaching the moon/ space travel; burning a diamond; women getting scientific recognition;

not 100% sure of the last one tho :/

>>7071325

thanks for the links anon, they were really enjoyable. :D

>>7071327

what happens when the hawkings radiation from one, enters the event horizon of the other?

>>7071258
>As soon as the two event horizons touch, the two black holes would instantly combine into a larger black hole with an event horizon that is the sum of the initial two horizons.

what?

>>7071251
>But it seems so wrong. A 3d object, pulling down on a 2d plane.

you could substitute any picture, its just a representation of the singularity. and it doesnt look 3d to me, it looks like a circle :/

>But in reality, if we could approach the object (black hole) we would be able to see all sides of it. And no matter which way we approach it, the effect on us would be the same.

yep, its a lot of gravity in one place, thats all as an oversimplification.

>So in the diagram, are we always placed on the plane,

the plane represents space, so yep, we are on that plane, as we approach the singularity space-time is distorted, the closer to the black hole the more distortion of the area around us.

>and any movement towards the object, would cause us to be pulled faster? Is that all its saying?

hmmm, when we get close enough its like a 12 inch ruler was shrunk to 11 inches, the space is distorted more the close we are to it.

>>7071195

im not sure..

like a lot of the words are the same as wikipedia, but like, the paper itself doesnt say anything about it getting "hotter". it says that ship needs radiation shielding, but the gravitation effect is minimal within the center of the Warp space.

"This is the basis of the model for hyper-
fast space travel that I wish to present here: create a local distortion of spacetime that
will produce an expansion behind the spaceship, and an opposite contraction ahead of
it. In this way, the spaceship will be pushed away from the Earth and pulled towards a
distant star by spacetime itself."

http://members.shaw.ca/mike.anderton/WarpDrive.pdf

>>7071220

ah, okay thx

i was a bit puzzled at what i said wrongly

all good :D

>>7071181
>So in other words, the picture is pointless, and the nobody really understands what spacetime looks like because we live in a 3d world.

the picture has always been correct, sorry, but that is the accepted way of visually representing the effects of space time curvature.

>>7071110
>nobody could tell if everything in our universe suddenly halved in size

halved in size, without changes in mass, yeah we could tell if that happened...

>>7071036
>>>7070991
>>Those universes would be quite small
>>>7071002
>>our universe started off "quite small"
>>>7071018
>>our universe started off "quite small"

tens of billions of light years across is quite small?

>>7071157
>No, none of those things.

can you show us a paper anon?

cause from the rest of what you said it sounds like you made it up, or have misunderstood what the concept is...

>>7071157
>Some models also predict

these models being?

:/

>>7071128

oh, im not that kind of smarts... but,

its hypothetical what happens in the path of the drive, but it has a "strong gravitational" effect.

within the field, its smooth sailing, but the collapsed / annihilated space at the front of the drive is likened to the Big Crunch.

imho i think of it as like a weird shaped black hole's event horizon. the space in front is distorted, presumably something like spaggetification. but no i dont think annihilated means removed from existence, because then that missing energy could be used to power the Drive itself. it just kind of crushes everything around it.

>>7071097

Alcubierre's warp is constructed of hyperbolic tangent functions which create a very peculiar distortion of space at the edges of the flat-space volume. In effect, new space is rapidly being created (like an expanding universe) at the back side of the moving volume, and existing space is being annihilated (like a universe collapsing to a Big Crunch) at the front side of the moving volume. Thus, a space ship within the volume of the Alcubierre warp (and the volume itself) would be pushed forward by the expansion of space at its rear and the contraction of space in front.

http://www.npl.washington.edu/AV/altvw81.html

>>7070901

youve never even seen once a tertiary educational facility have you?