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52 Years and $750 Million Prove Einstein Was Right

134 点作者 jonburs大约 14 年前

9 条评论

ars大约 14 年前
Here's the wikipedia page on it: <a href="http://en.wikipedia.org/wiki/Gravity_Probe_B" rel="nofollow">http://en.wikipedia.org/wiki/Gravity_Probe_B</a><p>One point about it is that the probe had a lot of noise, so much noise that it swamped the signal. It was only by developing computer models of the source of the noise, and then subtracting it from the signal that the result was found.<p>But I find such "adjustments" distasteful. I mean everyone expects a certain answer, and voilà you get that answer. Is there a bug in your code? Or course not - you got the expected answer didn't you?<p>(See the section called "NASA review" in the wikipedia article.)<p>Anyway, now that they learned so much about such probes they should launch another one and get much cleaner data.
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mattlanger大约 14 年前
<i>For Dr. Everitt, who joined the Gravity Probe experiment in 1962 as a young postdoctoral fellow and has worked on nothing else since, the announcement on Wednesday capped a career-long journey.</i><p>There's something so profound about that.<p>To think of how many jobs I've held in my comparatively short life, how many minor career changes I've had here and there, how many massive shifts in interest and passion I've had over the years, and to hold these up beside someone who has <i>been wholly dedicated to the same singular goal since before I was even born</i>--that's just mind-boggling.<p>And it was selfless! This one singular goal to which he's dedicated himself, every one of the fifty years of work that went into it, ultimately ended up becoming--at least when boiled down to a headline--a footnote to someone else's greatness.<p><i>Five decades.</i> I can't even begin to fathom what sort of drive and passion and commitment that must require.<p>Bravo.
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bostonpete大约 14 年前
According to the article below, everything measured by the probe has long since been measured in other ways with greater precision. Based on that, I'd have to say, this probe didn't really prove anything...<p><a href="http://www.newscientist.com/article/dn20444-beleaguered-mission-measures-swirling-spacetime-at-last.html?DCMP=OTC-rss&#38;nsref=online-news" rel="nofollow">http://www.newscientist.com/article/dn20444-beleaguered-miss...</a>
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SeanLuke大约 14 年前
[ugh] NYT headline writers again.<p>Falsifiable scientific experiment -- the gold standard for physics -- cannot prove that something is <i>right</i>. It can only fail to demonstrate that something is <i>wrong</i>.
joeguilmette大约 14 年前
it's not necessarily a tl;dr i'm requestion, so much as a physic geek deciphering.
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athom大约 14 年前
And for just three-quarters of a billion dollars.<p>It took me a second look to realized, but in today's dollars, quite the bargain!
mildweed大约 14 年前
Does this mean that it is no longer the Theory of Relativity, but now the Law of Relativity?
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gsivil大约 14 年前
Is there an arXiv paper on that?
trustfundbaby大约 14 年前
Anyone who's feeling like they can't handle the physics here should probably just leave now ...
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