I just heard on the news that astronomers have discovered sound waves emitting from a black hole in the perseus cluster. :o Apparently, it’s a Bflat, but many octaves below anything that can be detected by human ears. Very curious indeed.
like whale calls i supose.
Alltaken
Usually studies like this are referring to electromagnetic energy and not actual SOUND. Its probably oscillating X-Ray energy or something of that sort. After all…sound doesn’t travel through space because it needs a medium to travel through.
Euh, discovered sound wave in space. Yeah right, there’s no air in t\space, so Sounds can’t move trough space because it needs are. Without air, you can’t even hear anything.
So all the sounds they added in space movies is just somethig that can’t be true. You also can’t make a flame in space. :-?
Stars are flames in space…
Stars are big balloons of propaan, and much more another gas. That gas doesn’t really flame, it’s more like some glow, which is really hot. :-?
Technically speaking a lot of it is plasma. BUT, I would say that the sun qualifies as a large burning object. Given the fact that its firey in appearance and very hot. Yes it may not be possible to light a match in space due to the lack of oxygen, but that doesn’t mean you couldn’t combine oxygen and other chemicals in space and ignite them. Fire CAN exist in space, it just needs a fuel source, which our atmosphere is riddled with.
all those sci fi movies aren’t totally lying. If you have a spaceship filled with oxygen, you could blow it up using the air inside it. The sound theory is correct though.
I really don’t know a whole lot about astronomy, but as I understand it, nobody knows what is inside of a black hole. very dense matter i would assume. anyway, they never made the claim that the sound was actually travelling through space, but that the black hole was emiting sound, just as your example of an air filled capsule. So, let’s wait and hear what they mean exactly before we discount the possibility. 
If you READ the article it says specifically that the matter around the black whole is being vibrated with pressure ripples, and that, my friends, is the definition of sound. But the wavelength is 30,000 light years which is why its 57 octaves below anything we can hear.
umm… Actually it’s hydrogen being converted to helium by nuclear fusion. Tiny bits of atomic matter get turned into a lot of energy!
Yay!
No propane…
umm… Actually it’s hydrogen being converted to helium by nuclear fusion. Tiny bits of atomic matter get turned into a lot of energy!
Yay!
No propane…[/quote]
Actually, it is hydrogen at first, but fusion works on all types of molecules, so as the life of the star goes on bigger molecules get created and participate in the fusion too (like iron for example).
Martin
Which is why Neutron stars are chocolatey on the outside and have a crispety crunchity iron center.
I miss chemistry class (omg never thought Ide say that)
To be a bit picky.
Iron is an element and not a molecule.
Fusion is beyond the scope of molecules, because conditions are too harsh.
From a chemical point view there are not even atoms participating in the fusion process, but nuclei surrounded by “free” electrons.
Larger molecules like propane are found in interstellar space at temperatures of about 10-20 K. They don’t glow.
You didn’t miss much.
Yes, of course. I guess I was still sleeping from my prog course
Martin
Did you hear that everyone??? FREE ELECTRONS!! PARTY!
That sounds like one of those campaigns that Richard Gere gets involved with. “Free electrons! Its been under Chinese posession too long!”
Yep. Think about the unbelievable amount of tiny little electrons enslaved by the dark power of fat protons. Horrible !
At least in my TV they have a bit of a free flight, well kind of.
What’s worse is that the protons actually attract electrons around them, and it’s hard to get a rebellion group of electrons together, they repel each other away…
Would you prefer to be held captive by a proton or fired into a wall?
I thought sound can not travel in space. It needs a material to move in (be it air, water or a cord between to cans).