Red shift: measuring distance in space - Death Star- BBC Science

[frogambassador]

240p we meet again

[4FireBlaze]

I imagine 999999999999999999999999999999­999999999999999999999999999999­999999999999999999999999999999­999999999999999999999999999999­999999999999999999999999999999­999999999999999999999999999999­999999999999999999999999999999­99999999999999999999999 kilometers away

[TeamTaijutsu]

@4FireBlaze *same number but added a billion* now you have about it.

[hugec4]

WHY DOES THE EXPLOSIANS IN SPACE HAVE SOUND

[chazzterXBOXguy]

@hugec4 I lol'd

[joppadoni]

didnt have to write a thing down lol

[joppadoni]

do you just get more massive the closer to light speed you get or.. hang on i see some infinite fixes here.. lol

[joppadoni]

hmm, no on after thought the mass would have to be travelling faster than that of the space.. wonder what would happen when mass hit the edge of its area of available space?

[joppadoni]

by 'space' third line of my last post i mean the 'entire model'. all within would expand after all. are we saying pockets of mass have the gravitational pull to fight the expansion of the universe? i dont fucking think so lol. if so we would never have formed!!!

[joppadoni]

if i could produce a standard piece of radiation of any wave length and you were seeing it from a single point and the model was then static. you'd see it the same. if i then expanded the space within the model you'd see no difference as all measures were equal.. therefore if we can see shifts as you say then the universe is accelerating faster than mass... therefore go think.. im not sure of my point but i think the doplar/light idea must have more to it. why would the mass not move as fast?

[VongolaAQW223]

Too bad the Rebel blow up the Death Star :(

[VAPOURIZE100]

good lord wat kinda explosion d do tht o.o

[cainisme]

Loving how this happened exactly 1 month before my birth.

[DanameaTheBattleLock]

lol, Predator score =)

[24link135]

There is a thing in our universe more terrible than quasars and neutron stars:

ADVERTISMENT!

[TruthMovement330]

@24link135 and slow loading ones at that.

[24link135]

@TruthMovement330 just press F5 to skip the commercial!

[N3CR1S]

Dont they make a fault here? They analyse the red-shift. Since it is to the far red side of the spectrum they assume that its a great distance away. Well, wouldnt the red shift depent on the emission/absorption properties of the unknown materials in those clouds? i mean, different molecules retain different amount of energy after excitation, so the red emmision could simply be how the moelucules in the cloud react to excitation by gamma rays, and not indicating distance/speed?

[erikpoephoofd]

@N3CR1S

well, that's why those readings arent very precise. Anyways, who care's about a light year more or less?

okay, i guess if we want to head to alpha centauri it would be quite important, but that's not going to happen anytime soon, so... it doesnt really matter :p

[N3CR1S]

@erikpoephoofd There are more important implications than just that. Ive read more about the topic since, and whether red shift should be interpreted as the speed the star is moving away with, or as the speed the star is moving away with combined with the metric expansion of space. The two choices have some verry profound differences. And right now, i still cant understand why people have settled for the latter and Hubble's law.

[N3CR1S]

I believe they are mistaken. Its not the distance from earth that makes things red-shift, its the speed at which they are moving away.

Ofcourse, there is a connection between how far awya something is, and how fast it appears to be moving away, but they should not make shortcuts in explaining things like these.

[burtonlegand]

@N3CR1S yea...they are trying to measure distance with infrared? isnt red shift like the Doppler effect with light?

if thats the case, its only telling us that the ember was moving away really fast. but not the distance.

[constantine8]

@burtonlegand Come on dude, light has the same velocity in a vacuum, always. It doesn't matter how fast something is moving, the light will come off in all directions just as fast as if you were still. Do you really think the governments of the world would spend billions on these science experiments for the scientists to be found incorrect by someone on youtube? It is like the dopler effect, but different.

[MrJohnny56789]

@constantine8

scientists make dumb mistakes all the time. They are ordinary people with a propensity for fallicious thinking just like you and I. You know the "aha" experience, or "its so simple why didnt I think of it", the blindingly obvious, or the plain simple fact that people, when they become trained, aren't open to all possibilities, and unconscious deny a possibility before they even consider it..

[JonThm]

The red shift is c aused by antimatter nto motion! That is lame, 1950s thinking.

[weirdscience81]

Well I know what these explosions are. I have the documentary Death Star. Interesting is how old they are. They came when the Universe whas just a child. Understand that the verry first stars where MUCH bigger then the stars today. MUCH bigger.

[dzarren]

So if the rays origins are of ten billion light years away, shouldn't they take about ten billion years for it to reach us? how is it that we can detect its occurrence and even see its afterglow right away.

[punji73]

@dzarren maybe cos it did happen 10 billion years ago and its only just finally, after all this time, reached us, keep in mind the universe is over 13 billion years old. i wonder what it could've been causing the explosions so far off in the dawn of time

[CorboseMusic]

so what DID cause the explosion if it wasnt a star?? what the hell??

[smithomness01]

@CorboseMusic jesus sharded

[CorboseMusic]

@smithomness01 haha he sure did...when he did it the first time he called it earth

[BloodyRoxas13]

The afterglows are just stunning to look at :D I just love BBC documentaries... seriously!! ^_^

[wizardninja]

ahhh! What was it??? Why did it just end? i was so interested! >:(

[Chrononecrosis]

Haha. Gotta love predator music when on the hunt.

[boogiebuddy01]

thank the stars for bbc

[lokoxxxxx]

how old is this? "the other side of the galaxy" 10 bilion light years. We now know, that galaxy is more then 100 bilion light years wide

[stmk0]

Are you a scientologist?

[kenny8331]

how do they explain that andromeda is coming straight toward us?

[stmk0]

It's "more blue than it should be."

[kenny8331]

no i mean how\why is it coming toward us if the universe is expanding?

[stmk0]

@kenny8331 It's moving faster than we are in the same direction.

[Cihl280777]

Predator theme FTW!

[RobeZZZ]

BBC documentaries are always excellent... this doesn't make an exception.

Thanks a lot for sharing :)

[TheDrummerRon]

They really are great. I get BBC America on my direct T V & I wish they showed more of these. But it is mostly entertainment programs. They are good programs. I love the shows like Demon, Dr Who (so much better than the original) also really loved a show I can't remember the name of. The one with Captain Jack. Anyway good programs but I wish we got more of these great documentaries.

[scuds03]

PREDATOR MUSIC HAHAHA

[Kinghart01]

What would it be then? Another Big bang? ...Or Goku?

[cullodin]

LMAO

[ZackVixACD]

Probably Goku going Super Sayan 3

[gaelgeseomra]

wow so there are more universis,i was having problems understanding the size of this one.

[gweegwee3]

lol its the predator musics!

[ryu187]

I'm glad someone else noticed XD predator music to telescopes. You can tell nerds made the video XD

[7aMoODaiZER]

*breathing* Luke I AM YOUR FATHER

[sypha0x]

I Thank god that you enjoy watching bodybuilders penises as a form of pleasure and satisfaction on your page haha

[sypha0x]

HAHAHAHA (*Evil Laugh*).... O_O not funny dweeb keep trying

[sypha0x]

I'm glad you're getting amused way over there behind your computer. HAHAHA now that's funny

[sypha0x]

Hardy Har Har....remind me the part I'm suppose to laugh

[sypha0x]

No energy = is something I won't waste explaining it to a moron, dumbass

[Kittani1977]

The BBC just LOVES the music from Predator for it's science shows, doesn't it?

[ItalianTony86]

If it bleeds, we can kill it.

[frankystein12]

@Kittani1977 Can you blame them? Science is just to exciting!

[weirdscience81]

@Kittani1977 That soundtrack is like MADE for the Universe!!!! :D

[coidrefection]

is the gravity in our earth is the same as in space?

[sypha0x]

Gravity and Acceleration, are two sides of the same coin. When you stand still on earth you are accelerating. Only when you are falling is when you're not accelerating with gravity. This is when you are freely floating. According to Einstein. Also if you're standing still you age more, each time you are in motion you age less in relative to everything still according to Einstein. Each time you move you're time traveling.

[jgoemat]

An object will continue moving in a straight line at the same speed unless acted upon by a force. When you are falling, that is gravity causing you to accelerate. Newton came up with this to explain the orbits of the planets. They would fly off into space unless the sun was accelerating them towards it.

[sypha0x]

That was wrong, Einstein overthrew Newtons's revered theory of gravity in 1907. Newton only discovered an equation that described the effect of gravity with great accuracy, he fully recognized that he left unanswered important question of how gravity actually works in his Principia. In which Newton highlighted the bucket "What is the true nature of accelerated motion? Einstein calls it the principle of equivalence. When you're free falling you feel weightlessness just as if floating in space.

[sypha0x]

According to Einstein, You and the Earth and all things we consider to be Stationary are accelerating upward. Einstein would argue that it was Newton's head that rushed up to meet the apple, not the other way around. This is the current way we see Gravity today in General Relativity.

[Kittani1977]

That makes my head hurt... I prefer to live in my own crazy cosmos where time is a constant. To have me age quicker at rest is just another excuse for my family to get me to go help fix thier computers.

[mamushi72sai5575]

I will admit it now. My friend Steve is an alien from a distant galaxy and his people populate the universe he is also a very fat alien and he farted. end of story

[Chronobeanz]

sooo the bursts are coming out of a singularity?

[lilmitchy00]

does that mean that E=MC 2 is obsolete?

[Presidentjh]

No, but it has special exceptions according to these new theories.

[AzlyTV]

yah like gravity there is no true equation or hypothesis

[lilmitchy00]

sooo basically Einstien was wrong???

[sypha0x]

E=mc2 Science still does not know what Energy is.

[Dewd14941]

sad flamers.

[355830]

The explanations in this video were terrible. They didn't explain what the doppler effect was, or that the reason it can be used to measure distance is because of the universe's expansion. They just said that the colour of light from an explosion can tell the distance to it, which is only true if you know the un-shifted colour of the explosion, which we don't!

[xXCALLZXx]

its been majorly dumbed down for the average audience. That's why they need to put in big shiny special effects and explosions, so they don't get bored.

[sleathx]

it is possible, that by measuring the afterglow, you lose a significant ammount of accuracy. I would bet that 10 years form now we create a lense that sees gamma rays which shouldnt be hard if we can already detect them - when we do, i bet that we will find we were dead wrong and that we confirm e = mc^2 again

[Evilfisher]

where can i see the rest of this vid?

[informationsponge]

They used the music from Predator!

[gaelgeseomra]

absolutly WOW

[dutchfreaker]

AWSOME..!!

[SagaSudaka]

HOLY FCKIN SHIT!!

[m3gking]

sounds like a giant antimatter reactor going boom... or something like that

[primehunterlol]

aliens are coming!

[drakio99]

*MAYBE* it was another membrane of a universe that didn't have the laws of gravity or physics applied to it now all universes have the same laws ...

[snearkers1]

WOW

[TheDrurox]

i just watch a the vids about these massive explosions sending gamma waves in space, 10billion light years away, out side of our universe. so massive that nothing can make anything that big that we know of to date. tho keep in mind the universe was made 13billion years ago. so u never know we could be seeing the first super massive stars exploding now and it was just a matter of time for the light/effects to reach us. just a thought =)

[stelivo1]

is there a part 2 or was this taken from a series or ep or something?

[dmcbyvictor]

sounds like the freakin ending part on alien predator at 1:40 lololol

[filthyjames]

aw man i just shit myself watching this

fucking AWESOME

[OcRowen]

Dumb question: What if the original light is red ?

[megahurtz30]

It has to do with shift of lines in the spectrum of the light from the star. Simply looking at the visible color only tells you the star temperature or so...

[daboomonline]

The burst was positioned 10 billion ly away. There for, the burst happened 10 billion years ago. The universe is 13.7 billion years old. These bursts happened just 3.7 billion years after the big bang.

A lot of people forget about this when they look into space. Everything you see on Earth or in space is in the past. Looking at distant objects in space takes you back in time billions of years.

[HamishChandler]

wow, i never looked at it that way, thats so amazing... makes me think....

[Hipster420]

The extreme release of energy could be caused by another membrane bumping up against our universe....just thinkin out loud

[baronvg]

I assume Alan Silvestri is getting paid, right?

[MOZZWIGAN]

predator musis lol

[baronvg]

hahaha, yup, i noticed it immediately!

[MOZZWIGAN]

music i was supposed to say lol yea love predator me lol

[kggoh]

haha, it said, the hunter is now on... thats why they choose predator's music. lol

[bonslywizard]

1:39 to 2:15

Love it

[BassNoNeedToThink]

i know it's so epic!

[TOTALHOTT]

so this shattered Einstein's theory - what was his theory again? ?? props to whoever can give me the answer..x

[InitialDAmine]

..................E=mc²

[stupidfacefaceface]

idoit

[InitialDAmine]

Excuse me ?

[stupidfacefaceface]

can't stutter on the internet, ya dumb twat...

[InitialDAmine]

Oh man , dumb ? on which aspect ? or let refomulate the question what gives you the right to judge other peaple while you coudn't even put space in your half assed sentence ? get over yourself buddy , you don't know me or know anything about my background or whatever .

[stupidfacefaceface]

it doesn't matter if i know you, the internet gives me the right to judge... don't like it... GET OFF! if not, grow a pair.

[03Dmartin]

lol

[03Dmartin]

lmfao XD

[InitialDAmine]

actually it didn't shatered it , the explanation is simple , the explosion are coming from hyper/supernovas from stars which becoming blackholes , which mades it really concentrate beams of gamma ray burst instead of a spreaded out gamma ray burst , the law E=mC² (will it is not the correct formalism ) it is not shattered

[JBlackTD]

May I add the shifted energy not only is redder towards us, it appears (by your image) it pulls energy away from its farther away (direction a vehicle would go if we got face-full of blast from the vehicle. How long was the blast again? One time only? Hmmm

[JBlackTD]

Why did these bright people not realize that the Universe could be chock full of intelligently operated vehicles, and they got a full face shot of a "tail light" (blast from antimatter or similar engine towards us, much much closer, would create this red shift- and being closer are vastly less power-intensive compared to the universe-crossing hypothesis of this burst.

[jjancauskas]

At around 1:45 isn't that the theme music from the movie Predator? Awesome.

[MOZZWIGAN]

yess

[vengencefrom1979]

not to mention all of the interstellar dust that would obscure an accurate reading?

[vengencefrom1979]

so a galaxy which is 15 billion light years away, and takes 10 days to get a photograph of it (along with its clusters) gives off enough photons to determine the red shift?

[GrapeFruit555]

"It completely shattered it' Epic last line

[pogiyou1]

ei just a question how hard is to believe in a thing that never happened.?

ahahhaha.

just beleive in the things you see.

[stupidpplequalstupid]

your a fucking retard, you talk on other videos about a creator and how one must exist for everything to be created yet now you say believe in what you see? how does that work? it scares me to think america is the wests major super power when nearly half of its citizens are fucking religious morons who still in 2009 deny science fact.

[eTernaLBOWLING]

Hey bro just a little tid bit of info to think about in regards to the U.S. Though the polls might show america is largely religious, i think they are rather decieving. I believe the true nature is more like 80/20 with religion the latter. I think the polls #'s only accounts for people who can't admit they arent religious due to where they live. this is a very common theme in heavily religious towns, people are just afraid to admit its all bs. so just remember its prolly not 50/50 :)

[ch00ne]

whats with the predator theme tune??

[fabbio8888]

That's a crazy conclusion for a BBC work.Gamma Ray Burst should invalidate the cosmological redshift but, in order to save the religion of the Big Bang, you prefer to accept something violanting Einstein's theory. Silly, because you first use it then you invalidate it. That's empty religion. BBC please correct.

[harr7959]

I don't see why these people waste their time... I mean...2000 years ago we got all the answers....HAHAHAHAHAHAAHAHAHA jk

[TEMPESTSPARK]

HaHa Funny... What happend 2000 years ago?, Do you realy think understanding the universe around you is a waste of time?

[TEMPESTSPARK]

(PT1) It happened at the edge of the Universe?, Everyone knows that the universe has no edge this sugests that our universe can fall of the edge of it's self, and we can only see what galaxys and the part of our universe that are'nt inbetween thoes huge gravitational waves and if so guessing redshift values has'nt shatterd Einstins "Law" "so to speak". How old is the universe using this flawed method?

[kjfudge]

TEMPESTSPARK: I agree. I think there are some definite issues with our current understanding. We are using hypothesis to understand an event, instead of using the event to modify our hypothesis. Hope that makes sense.

[TEMPESTSPARK]

Where did the (PT2) of this go? it must have been the part that explaned everything :-)

[Dylanius]

OBVIOUSLY its the second big bang

[tedhellcaster]

it must be chuck norris

[breaneainn]

haha! Chuck Norris banged the universe

[moejazi101]

its all a conspiracy!! its all aliens in the universe and were next! everyone needs to prepare themselves for the holyday!!!

LMFAO

[vengencefrom1979]

imagine an ordinary blackboard in an ordinary classroom.

draw a circle on the blackboard in the center of the blackboard, say about an inch in diameter.

let that circle represent the 'known' universe.

now imagine what is outside of the circle.

[Deveiel]

A detention list, some leftover erased chalk and instructions on how to draw a circle, while the 2nd grade class looks on?

[nhojmabon]

lol

[Hinhanska7]

These gamma ray bursts are caused by black hole jets I think. They have one jet on each side and concentrate the energy into a small area, like a laser.

[CanisRufus123]

Exploding stars also cause them, but to a lesser extent.

[Pukuk]

oh i know that! were studying red shift phenomenon hahah,..

[cthrash420]

this shit is crazy

[sabretoothed99]

Predator ahhahahhaha

[saturnhexagon]

Why are they playing "Predator" music? LOL

[homer351]

hahahaah........ Predator

[ImNotAPlant]

my band director wrote our marching band show based on Red Shift...

[iliveatseven11]

could this be a big bang or that be too powerful

[rippy1234]

No thats no were near as strong as the bing bang. The big bang was so powerful that its shaped space. In fact the effects of the big bang still continue today. Redshift has shown that all the galaxies are moving away from up due to the big bang.

[lolmayop]

actually, shows like this how little we know about space and the universe. "Blue galaxies" have actually been discovered, which means they are moving toward us, possible shattering the theory of the big bang, but know one knows.

[Frkojferin]

There are about 100 known galaxies with blueshifts out of the billions of galaxies in the observable universe. Most of these galaxies are in our own local group, and are all in orbit about each other. Most are dwarf galaxies among them include the Andromeda Galaxy, M31, etc. (David Latchman)

[Krawnikal]

I hope youre not refering to andromeda galaxy as a dwarf galaxy, because it isn't but I might be just reading your statement wrong.

[TEMPESTSPARK]

do you Mean the Andromeda Galaxy is part of our own local group of galaxies and Most galaxies in our local group are are dwarf ?. :-)

[plancker]

Who wrote the script for this. The explanation of red shift falls so far short of what a Year 10 pupil learns that the editor responsible needs sacking! Why is interesting science so dumbed down? They wouldn't get away with it in politics or literature or classical music.

[eltotoX]

Actually, my friend, they do get away with it in politics.

[KINGU2B]

gte nova

[znzo]

Super Nova.

[vrshowdown]

supernova is no where near a gamma ray burst not even a hyper nova ... gamma ray burst are next to the big bang as the most powerfull explosion.