Particles Larger Than Galaxies Fill The Universe?
news.nationalgeographic.com
news.nationalgeographic.com
I see a fantastic new field of military technology just waiting for us. Talk about a deterrent. "If you attack us, we'll blow up the solar system".
So these ancient neutrinos have such an extremely low energy and such a disperse wave function? Sounds like saying that we can't see them, and even if we could, they're not even in a "place" that can be seen. I mean, if your probability wave reasonably covers the entire universe, I'm not sure the word "location" works any more.
Consider a 100W globe diffused to such a degree that the light is spread out over the whole solar system. Nothing remarkable, right? Wouldn't even notice. But imagine a few trillion trillion of them and suddenly you have some interesting questions, such as "where is all this light coming from".
Personally I find regular neutrinos to be utterly fascinating. The idea that there exists a particle so small that it can pass, utterly unhindered, through the whole freaking planet just blows my mind.
Anyway, questions have to be asked, theories have to be proposed, silly or not!
</tease> ;-)
Because I'm not about to tell my friends we're surrounded by tiny, ancient neutrinni that nobody can see but exist everywhere at the same time.
Call it dark matter. That was an awesome-sounding name.
If I have to manipulate a big equation I give nicknames to the different pieces, like "the curvature leftovers" or "the linear stuff" or "that ugly fucker from under the radical."
"The little neutral guy" seems like a perfectly natural name to me.
I was just teasing sho about http://news.ycombinator.com/item?id=643051
Hope there's no hard feelings anyway, I certainly didn't intend it as some kind of attack. It can be hard to get honest feedback that hasn't been softened by politeness, so I attempt to provide it, even at the risk of being seen as a prick.
The rebuttals were instructive, by the way. One person chided me thus:
"You could try couching it in some politeness"
And I suppose it is easy enough for me to do that. I am usually extremely polite. But is that really what you want? "Polite feedback only?" If that's what you want, ask your Mom.
Despite what you might think, I do try to be honest and, more importantly, useful. My actual, real-life reaction to that company name was visceral - I really hated it. I tried to get that across; it was pretty late, and I was somewhat drunk (hehe), maybe I dialed up the harshness a little too high but reading it again I don't think I was that far off the mark. And certainly better than misrepresenting myself for the sake of protecting feelings.
Obviously there is a balance to be found between worthless feelgood encouragement and worthless destructive "that sucks" snark. Perhaps in this instance I went too far to the latter. But at the same time, look at the whole thread. No-one else even mentioned the name. Was it because they all love it? Or because something so fundamental is off-limits?
It cost me 20 mod points or something to get that point across, not that I care about that, but still - now you know that some people think the name sucks and it might be a problem. I am satisfied with the outcome.
Do you really want everyone to be following the principle "if you don't have anything nice to say, don't say anything at all"?
You can imagine we didn't come up with this name without some thought, and we did do some testing of it before releasing it. Yes, some people will have an immediate adverse reaction to it, but they're a tiny minority, from what we observed. Most are puzzled by the name, but they don't care that much. One advantage we get from this name is that it sounds different from the competition, and so people remember us.
It's all about trade-offs.
Anyway, the above point was just a tease, I'm fine with feedback in all its forms.
I have to admit, the name is memorable. By that metric, you've succeeded admirably. It might be seared into my brain as "worst name ever" but - it's seared into my brain, lol ...
I'm just saying that the math runs way ahead of our intuitive grasp of reality, hence the mind-blowing capabilities. Saying something is too small to measure, and could be anywhere? That's very close to saying it isn't there, at least in a classical sense.
However, the point I was trying to make was - (almost) too small to measure is just so, but in vast quantities becomes significant. And everything's like that really, it's just a matter of degree. What "classical" physics would call an atom is treated as more of a probability field these days. This seems to be the same thing, just with the probability turned way down!
It's everywhere, it's nowhere. It's huge, it's small. We've got all the classical bits of silliness in there.
It's crazy all right, but exciting too. Personally I can't wait until we can harness these new understandings for technological advancement; somehow using neutrinos for communications, for example.
Any clue to the number of nutrinos in existence? Or say the distribution of them, from the very old to the ones spitting out of the sun?
1.82804300229627e+38
as an int that is
182,804,300,229,626,770,000,000,000,000,000,000,000
neutrinos per second from the Sun.
I left in the spurious significant digits because they kind of help ram home how large a number it really is ..