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This is the worst kind of comment and what is wrong with Hacker News. No one cares about your intellectual superiority, or the fact this might be a special int
by healsjnr1 12y ago
This is the worst kind of comment and what is wrong with Hacker News.
No one cares about your intellectual superiority, or the fact this might be a special interest for you. This article wasn't written for you, you already know and understand its content. There is literally nothing you could have got from it.
I on the other hand enjoyed the article. This isn't a field I'm familiar, so in general my knowledge was increased. That some concepts are misrepresented and dumbed down is obvious, but this is far out weighed by the general knowledge that was imparted.
Writing is all about picking an audience and conveying it effectively to the audience. It's fine to point out inaccuracy or build on the finer points, but don't be aggressive about it and don't insult the article because it offended your superior intellect.
- nullc 12y agoI'm glad you enjoyed it, but in my opinion the article was misleading. Not just simplified. I didn't go on and on in detail about systemic and random effects, linking to NIST tech reports on all the corrections they have to do on primary standards (http://tf.boulder.nist.gov/general/pdf/1846.pdf?origin=publication_detail http://tf.boulder.nist.gov/general/pdf/1846.pdf?origin=publi... on the redshift error at NISTs boulder facilities; and http://tf.boulder.nist.gov/general/pdf/2704.pdf http://tf.boulder.nist.gov/general/pdf/2704.pdf on the sources of error in the F2 primary reference, see section 3.2 on relativistic effects), or pointing out people's amateur time keeping experiments where they demonstrate relativistic influence on decades old hardware ( http://leapsecond.com/ptti2006/tvb-project-great-ptti-ppt.pdf http://leapsecond.com/ptti2006/tvb-project-great-ptti-ppt.pd... (this presentation is long and a ton of fun)), etc. or all the other bits of trash I could have pulled out to demonstrate knowing something here... because that wasn't my goal, the only point I was trying to make is that the article was likely to make many readers _less_ knowledgeable about the subject. (But I will give those links now, because this argument is boring and time is neat!) Perhaps you have enough background that you were not thrown off by the seeming claim that improved accuracy somehow makes these experimental references _less useful_, and you already know that relativistic effects aren't unique to optical lattice clocks and already must be compensated for, but I am sure that this is not universally the case. What I get from the article isn't nothing... Potentially I get community around me which is less informed than they started and all that entails. Perhaps that's compensated for the fun they had reading about an interesting subject? or the additional learning they do after? I don't know, but I think the article could have been just as enjoyable without the bogus mystique that makes it misleading. But if pointing out an article was, in my opinion, potentially misleading makes me everything that is wrong about Hacker News, I'll wear that proudly. I, for one, think it's more likely the case that crappy shock headlines like "end time as we know it", constructed drama, and false freshness are a bigger drag on HN (and wider society) than any of my posts are likely to be... but to each his own.
- foobarian 12y agoFor what it's worth, the new thing I got from the article is the unexpected idea that one could usefully measure non-time phenomena with a really precise clock, such as gravity or altitude. Definitely more thought inspiring than many other articles, in spite of the way it was written.
- wglb 12y agoYou didn't really respond to his No one cares about your intellectual superiority, or the fact this might be a special interest for you part of his comment. Your tone and delivery is a bit offputting. And the thing that I didn't see you comment on that I found particularly fascinating was that the increased resolution of these clocks is such that you can discern differences in relativistic effect between floor and wall. That changes how I think of time. (My favorite headline that I read sometime around 1965 is "Dating Events in the Vicinity of a Leap Second.)
- nullc 12y agoOK. Dunno what to say there. I thought the article was misleading because it was intentionally sensationalized, not due to some lack of intellectual capability or because it wasn't addressed at an audience with a background in the subject. I'm sure that I know less about the subject than everyone interviewed in in the article. If anything, I think knowledge makes it better, since you're not likely to be mislead by it. Wrt relativistic effect, the first NIST paper I cited shows that they needed altitude uncertainty less than 1m to avoid redshift from dominating the clock's error. The second shows that for the improved F2 reference redshift is one of the largest sources of uncertainty (and the corrected part is orders of magnitude larger than the other listed systemic errors). It's really cool, I agree. I'm happy to have people share in enjoying that, but sad about whatever causes the press to always have to present things as new and categorically different than what came before. There are a number of really cool things they didn't mention: For example, these optical lattice clocks that they're talking about are solid state-- involving mostly only lasers and vacuum cells. Unlike cesium based atomic clocks, they may have reasonable prospects of being mass produced inexpensively in the future, and efforts to do this are being funded by DARPA (useful for many military applications, like jamming systems and anti-jamming, navigation, and various sensing applications). So unlike the state of the art atomic references these things may someday show up in very inexpensive equipment, and allow for some fun science experiments, improvements to reliable distributed systems, long baseline amateur radio astronomy, etc. Or, Tom Van Baak measuring gravitational redshift with a minivan and some old HP cesium beam clocks. okay, not "floor to wall", but if you haven't read his presentation on it, you should, it's a load of fun and IMO, more accessible in that it's not talking about technology that exists in a rats nest of cables on an optical table in a single lab, but just old junk you can find surplus. :)
- jdbernard 12y agoThis is the worst kind of comment and what is wrong with Hacker News. This article is poor scientific journalism. "New clock may end time as we know it." Seriously? How is that remotely true? There is nothing in this article that justifies that headline. If anything, this new clock affirms our understanding of the nature of time, pointing out the minute changes that we expect to see but have not had instruments sensitive enough to measure until now. But that desire to pin down the elusive ticking of the clock may soon be the undoing of time as we know it: The next generation of clocks will not tell time in a way that most people understand. Undoing of time as we know it? Will the existence of this clock somehow magically make all other clocks in the world turn incomprehensible? No, the truth is that most of society won't even be aware of this "undoing of time as we know it." And on the subject of telling time in a way most people don't understand, that is already true of the cesium clocks they mention. We already have to deal with relativistic drift, of which most people are ignorant. But this new clock has run into a big problem: This thing we call time doesn't tick at the same rate everywhere in the universe. Or even on our planet. This line makes it out like we didn't know about relativity. Also, I hardly think more precision is a problem. If anything it gives us power to do things we never have done before. Technologies like GPS wouldn't work without the current generation of clocks. I'm excited about the new possibilities that an even more precise clock will open. It's not a problem. They just may not be able to tell us the time. What?!! This is incredibly misleading. The new clock will be just as able to tell time as all of the clocks we've had up until this point. I could go on, but nullc is right, this article is crap. It is dripping with sensationalism.
- krick 12y ago> We already have to deal with relativistic drift You already mention GPS later in your comment, so it isn't that necessary, but I want to emphasize anyway: we are not only "dealing with", we are "making use of" it. Things we use every day would be impossible, if we wouldn't have precise enough clock to measure all that stuff already.
- nullc 12y agoAnd have since the 70s( http://support.radioshack.com/support_tutorials/gps/gps_tmline.htm http://support.radioshack.com/support_tutorials/gps/gps_tmli... ). Pretty wild.
- krick 12y agoThe fact you don't like his comment doesn't make it "worst kind of comment". Nothing was essentially wrong about what he said. Maybe kinda harsh, I don't know and don't really care: it's plain stupid to favor fanciness of speaking to correctness of facts delivered. In turn, there were wrong, imprecise and misleading statements in that article, which does make it bad to some degree. It's not the worst of it's kind, but still pretty bad. Actually I would consider it harmful, to write something that is easy to pick up for uneducated people, that gives them impression that they understand it while giving them wrong impression about the subject, that is, being misleading. I'm not sure I could appreciate that even if it was impossible to write easy-to-understand useful quasi-scientific articles/books, but as I've seen them I must conclude it's not impossible, so that makes people writing misleading stuff with attractive headlines even more guilty. Your comment in it's turn contains nothing, but claiming somebodies comment is "worst" based only on that being not populistic enough. I would say it makes your comment "the worst kind of comment and what is wrong with Hacker News".
- goblin89 12y ago> This is the worst kind of comment and what is wrong with Hacker News. > No one cares about your intellectual superiority, or the fact this might be a special interest for you. Comments like this may often offer a fair bit of factually correct information and interesting insights. Opposing views, strong opinions, critical thinking—all this seemed more like a “feature” of HN rather than a “bug” to me. (Sorry, I may have accidentally downvoted you; this was not intended.)