What is Digg?122 Comments
- cdigioia, on 08/30/2008, -4/+56Hm...this is high-level physics & I'm drunk, but I'm guessing this comment will be about as insightful as +95% of the comments that will appear for this article.
- ai52487963, on 08/30/2008, -1/+37Can't wait for the Fermi satellite, combined with the LHC data to come out over the next 6 months or so.
A year from now, our perception of particle physics is going to be totally different than what we know now. - BotchaMcCoola, on 08/30/2008, -0/+24Yes, and to make matters worse, that is only in a few dimensions. Science is getting too complicated. Let's go back to worshipping the Sun.
- elamr, on 08/30/2008, -0/+23Dark Energy = 70% of the universe
Dark Matter = 20%
Ordinary Matter = 4%
So we only understand 4% of what is going on in physical reality.
So there is pretty good chance that there it life made up of Dark material? - Kamacurus, on 08/30/2008, -3/+19HEY! I read that also.......small world.
- SugarCoatedSalt, on 08/30/2008, -1/+17oh I get it, "shed LIGHT on DARK matter".
its funny because its light and then you have the dark matter. - 9bpm9, on 08/30/2008, -1/+15Didn't Dark Matter use to make up a hell of a lot more than 23% of the universe :/
- strictnein, on 08/30/2008, -1/+14Dark Matter makes up 23%, Dark Energy makes up "73% of the total mass-energy of the universe" (thanks wikipedia). "Only about 4% of the total energy density in the universe (as inferred from gravitational effects) can be seen directly"
I know that this is all the leading theory right now, and I've read a lot about it, but I still really struggle with the idea that only 4% of the universe is the stuff we can directly see. - strictnein, on 08/30/2008, -0/+11How is it further proof that we're not "special"? If anything, it's the exact opposite, as we're made up of 4% of the universe, not the 96%.
- DivineMonkey, on 08/30/2008, -0/+10Can't wait until they fire up the LHC, we're living in exciting times folks.
- sandaboy, on 08/30/2008, -11/+21"The Large Hadron Collider may shed further light on dark matter."
- inactive, on 08/30/2008, -5/+15It looks as if it is being seen through lots of little lenses. And each of these lenses represents a piece of dark matter.
- djcreamy, on 08/30/2008, -0/+9Dust!
- TSK05, on 08/30/2008, -0/+9Dark matter is a very accepted theory, no less accepted than evolution.
- poidh, on 08/30/2008, -1/+10I went lol because I know exactly what you mean. You at the one below "This marks the beginning of a new Epoch, the likes of which we have never witnessed before." Meaningless tripe.
- TSK05, on 08/30/2008, -1/+9Sort of - before we knew of dark energy, normal matter made up more and dark matter made up more as well (to fill up to 100% without the 73% that is dark energy, the amount in percent of both had to increase).
- Nodnarbs, on 08/30/2008, -0/+8Funny, still feels like the same epoch :P
- inactive, on 08/30/2008, -3/+10Striking evidence has been found for the enigmatic "people" called Digg Bury Brigade which makes up 23% of Digg, yet is invisible to our eyes.
- ShrimpCrackers, on 08/30/2008, -0/+7There is no Macro and Micro evolution, the misconception that they're not all evolution is usually carried by Creationists, Intelligent Design Acolytes, and Strict-Bible-Adherents. Instead of understanding what they're seeing, they're just repeating the propaganda of desperate individuals grasping at any straws in something they barely understand.
- bullox, on 08/30/2008, -1/+7Thanks for the overly dramatic empty comment.
- riskybeats, on 08/30/2008, -0/+6Yeah man. I don't think a lot of people appreciate how profound these experiments are going to be, because if they get results according to plan, ***** will hit the fan.. if it doesn't, you might as well divide by zero.
- zjbird, on 08/30/2008, -2/+8They also found a crumbled up candy rapper with a note saying "Nibler was here"
- Kamacurus, on 08/30/2008, -0/+5good story
- cdigioia, on 08/30/2008, -10/+15What, are we suppose to digg you up for a random-ass quote?
- imakecomments, on 08/30/2008, -0/+5You say "only a theory" like that's a bad thing.
http://www.notjustatheory.com/ - V1ncent, on 08/30/2008, -1/+6Dark Matter: 100% more tasty than regular matter. Just like chocolate...
- youannoyme, on 08/30/2008, -0/+4haha. You sir, are about to be *slightly* corrected by a peer sir. There is still debate. If you recall, Dark Matter was theorized because the rotation speeds of galaxies didn't match the amount of matter we could see...so there must be matter we can't see! A small minority is more receptive to the idea that there are modifications needed to gravitational laws at certain scales than to the idea that there is some mysterious matter we can't (and may never) see. Albeit its a *very* small minority, but its a real one. I think they are fools, as do most, but it wouldn't be the first time in physics that the fool with the outlandish idea was correct... But, hopefully this new bit helps cement the coffin for these alternate theories!
- diggum85, on 08/30/2008, -0/+4She swallowed it...
- Qeveren, on 08/31/2008, -0/+4Because planets ARE a form of dark matter; any sort of non-luminous (and therefore difficult to detect) matter is dark matter.
- migshark, on 08/30/2008, -0/+4I hope so. I fear the day that physics becomes a science of fine-tuning existing theories and formulas. There's still so many possibilities.
However, many technologies like the LHC are working at proving existent ideas, rather than creating new ones. I know there's a lot of alternative discoveries we can make with the LHC besides confirming dark matter, but I'm kind of hoping we fall flat on our face. - CATSCEO2, on 08/30/2008, -0/+4October 21 is when the high energy collisions take place.
http://en.wikipedia.org/wiki/Lhc - twelfthofmarch, on 08/30/2008, -1/+4WIMPS & MACHOS are scientist intentionally creating these acronyms to make the subject more COOL?
- chessmaster2000, on 08/30/2008, -1/+4worst article description ever...
seriously, why would you end in mid-sentence?? - inactive, on 08/31/2008, -1/+4I would digg you up, but I sit with the popular kids at the lunch table... you know how it is.
- xNaquada, on 08/31/2008, -0/+3Why yes, yes you can
- riskybeats, on 08/30/2008, -0/+3Can I worship the waffle on my ceiling rather then the sun?
- TSK05, on 08/30/2008, -0/+3youannoyme - funny because I JUST said that's a possible theory in another reply below:
"It could though, possibly, be that we just don't understand how these stars are suppose to spin at such large levels, like the physics changes (as for instance our current theories say it changes for very small scales when we have to use quantum physics). But then there is the CMB evidence too..so yeah, it's a pretty accepted theory."
That said though, as I mention in that reply, there are other evidence not relating to rotation speeds like CMB and gravitational lensing. - norman619, on 08/30/2008, -1/+3More like before we theorized other dark stuff. I love how they don't acknowledge the possibility that what they are observing isn't dark matter at all.
- TSK05, on 08/30/2008, -0/+2Pretty much, yep. I thought that too when I first heard it in my very first astro class. Astronomy has a lot of cool/funny naming stuff, like big bang was originally suppose to sound stupid and it was a term one of the biggest proponents of steady state made up to make fun of the big bang theory. There are other sort of old conventions/names that have stuck like planetary nebula (which has nothing to do with planets), pulsars (which don't really "pulsate" as you might thing they do, they just spin and sometimes their energy is directed at us and sometimes it's not - they don't actually change sizes). So yeah, they do make these names up to sound funny :P
- sandaboy, on 08/30/2008, -3/+5It's random to you, just think deeper and you will laugh.
- TSK05, on 08/30/2008, -0/+2We have a fair idea of what some dark matter is (planets and other compact objects, as well as neutrinos), but that only explains a percentage of it.
- RusskiGuy, on 08/30/2008, -0/+2*Gasp* what if U.S. does it first? 'Cause you know, Russia would use it for evil and U.S. would use it for good...
Oh, and why would anyone need yet another means of killing people? I'd think we already have enough different kinds of weapons. - cdigioia, on 08/30/2008, -1/+3@ sandaboy - You imply there's something to get. Would you explain it to me? Seriously, I don't get it.
- JohnFlux, on 08/30/2008, -0/+2Actually only about 4 billion years ago (approx - I can't be asked to do the calculation). The universe is expanding. Take for example that the universe is 150 billion light years across, but only 14 billion years old. Stars can move away from us much faster than the speed of light.
- TSK05, on 08/31/2008, -0/+2Late reply, but as Qeveren said. You have not heard of it before because you have not studied the subject too much before, I assume. Although not necessary non-luminous, just not luminous enough (for instance a pulsar which isn't spinning our way is luminous but we can't see it, or a WD far away).
- audomatix, on 08/30/2008, -1/+3colliding galaxies kick ass.
- nomadxx7, on 08/30/2008, -0/+2It seems that astrophysicists have some pretty interesting names:
According to one model, dark matter may be comprised of exotic sub-atomic "stuff" known as Weakly Interacting Massive Particles (WIMPS).
Others hold that the dark substance consists of everyday matter, rather than some elusive sub-atomic particle. However, this ordinary matter, referred to as Massive Astrophysical Compact Halo Objects (MACHOS), happens to radiate little or no light.
Nothing like WIMPS and MACHOS in the universe - scotttech1, on 08/30/2008, -0/+2We already knew that the basic compnents of the universe were Wimps and Machos, the Machos pick on the wimps in highschool, then the Wimps go to college and learn how to make BILLIONS! then they harness dark energy like the russians and vaporize the Machos
- TSK05, on 08/30/2008, -1/+3norman619, I don't get it, what will get me on the right track? I am an astro student, I know about everything you quoted.
That said, dark matter is as theoretical as gravity. That is, both are theories and dark matter is actually only slightly less accepted. - youannoyme, on 08/30/2008, -0/+2actually, that's true. A professor of mine helped come up with the WIMPS acronym. It fit, so it was used, but him and his colleagues were very appreciative of how well it responded to the partially competing, and pre-existing MACHOS theory.
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