数据成百倍的增加，SETI@home寻求帮助

[url=http://science.solidot.org/article.pl?sid=08/01/05/0513202&from=rss]http://science.solidot.org/article.pl?sid=08/01/05/0513202&from=rss[/url]

SETI@home项目从8年前启动至今，已经吸引了多达500万位志愿者。但是当保罗艾伦捐助的[url=http://it.solidot.org/article.pl?sid=07/10/13/1422249&tid=102]新射电望远镜阵列[/url]正式加入后，SETI@home项目接受到的数据是以前的500倍，科学家Eric Korpela声称现在每天增加的新数据为300G，相当于一年增加100T，目前的处理能力远远跟不上数据的增加，因此SETI@home[url=http://www.berkeley.edu/news/media/releases/2008/01/02_setiahome.shtml]请求更多志愿者的加入[/url]。




[b] 寻找外星生命的新射电望远镜阵列[/b]

[url]http://it.solidot.org/article.pl?sid=07/10/13/1422249&tid=102[/url]

SETI项目的里程碑时刻，首个SETI专用的射电望远镜阵列正式开始运作。《纽约时报》报道，[url=http://www.nytimes.com/2007/10/11/science/11seti.html?_r=3&oref=slogin&oref=slogin&oref=slogin]天文学家正式启动了艾伦望远镜阵列[/url]（AllenTelescopeArray），保罗艾伦出资2500万美元建立了种子基金，故射电望远镜以他的名字命名。整个阵列将有350个天线，每个直径20英尺（约8米），它将成为成为搜索地位文明的最强力工具。Paul G.Allen在一次采访中称，“一旦发现了什么，他们会第一个打电话给我。不过到目前为止电话铃还未响起。”

“银河系中有2000亿颗恒星，其中一小部分有行星。估计银河系智能生命的数量范围从1（或是零，如果你将我们人类排除在外的话）到数百万。艾伦射电望远镜阵列能够探测到500光年外的信号，只是比Arecibo射电望远镜略强一点，后者位于波多黎各，直径有1000英尺，是世界上最大的射电望远镜（目前正处于困境中，可能会出于省钱的缘故而关闭）。艾伦望远镜阵列观察的恒星数量大约在100万左右，寻找外星生命就是大海捞针。”

昨天在项目新闻里面已经贴过，这里就重复一下吧～



[b]January 3, 2008[/b]

UC Berkeley Press Release: [url=http://www.berkeley.edu/news/media/releases/2008/01/02_setiahome.shtml]SETI@home looking for more volunteers[/url].

[b]SETI@home looking for more volunteers[/b]
By Robert Sanders, Media Relations [color=Silver]| 02 January 2008[/color]
                                                                                                                                                                                                            [b]BERKELEY[/b]– The longest-running search for radio signals from alien civilizationsis getting a burst of new data from an upgraded Arecibo telescope,which means the SETI@home project needs more desktop computers to helpcrunch the data.

Since SETI@home launched eight years ago, the project based at theUniversity of California, Berkeley's Space Sciences Laboratory hassigned up more than 5 million interested volunteers and boasts thelargest community of dedicated users of any Internet computing project:170,000 devotees on 320,000 computers.

Yet, new and more sensitive receivers on the world's largest radiotelescope in Arecibo, Puerto Rico, and better frequency coverage aregenerating 500 times more data for the project than before. TheSETI@home software has been upgraded to deal with this new data as thesearch for extraterrestrial intelligence (SETI) enters a new era andoffers a new opportunity for those who want to help find othercivilizations in the universe.

"The next generation SETI@home is 500 times more powerful then anythinganyone has done before," said project chief scientist Dan Werthimer."That means we are 500 times more likely to find ET than with theoriginal SETI@home."

According to project scientist Eric Korpela, the new data amounts to300 gigabytes per day, or 100 terabytes (100,000 gigabytes) per year,about the amount of data stored in the U.S. Library of Congress."That's why we need all the volunteers," he said. "Everyone has achance to be part of the largest public participation science projectin history."

The 1,000-foot diameter Arecibo dish, which fills a valley in PuertoRico, is part of the National Astronomy and Ionosphere Center operatedby Cornell University with funds from the National Science Foundation.Since 1992, Werthimer and his team have piggybacked on radio astronomyobservations at Arecibo to record signals from space and analyze themfor patterns that could indicate they were transmitted by anintelligent civilization.

When the team's incoming data overwhelmed its ability to analyze it,the scientists conceived a distributed computing project to harnessmany computers into one big supercomputer to do the analysis. SinceSETI@home was launched, other distributed computing projects havearisen, from folding@home to predict the three-dimensional tangle of aprotein to the newly-launched cosmology@home to model possibleuniverses. Most are now on a platform called BOINC (Berkeley OpenInfrastructure for Network Computing), which was developed bySETI@home's director David Anderson so that the various projects couldshare resources.

"There are now 42 projects on BOINC, and, until now, there has been enough computing power to go around," Werthimer said.

What triggered the new flow of data was the addition of seven newreceivers at Arecibo, which now allow the telescope to record radiosignals from seven regions of the sky simultaneously instead of justone. With greater sensitivity and the ability to detect thepolarization of the radio signals, plus 40 times more frequencycoverage, Arecibo is set to survey the sky for new radio sources.

These improvements also prime the telescope for an improved search for intelligent signals from space.

"The multiple receivers help us weed out interference better and makeus less susceptible to thinking that things terrestrial areextraterrestrial,"
Werthimer said.

Werthimer noted that, despite the fact that UC Berkeley has beenanalyzing radio signals from space since 1978 on various telescopes, notelltale signals from an intelligent civilization have yet been found.

"Earthlings are just getting started looking at the frequencies in thesky; we're looking only at the cosmically brightest sources, hoping weare scanning the right radio channels," he said. "The good news is,we're entering an era when we will be able to scan billions ofchannels. Arecibo is now optimized for this kind of search, so if thereare signals out there, we or our volunteers will find them."

SETI@home has been funded by various organizations over the years,including the Planetary Society and Sun Microsystems, and continues tobe supported by individual donations from its volunteers.


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随着阿雷西博望远镜的升级，[b][color=Blue]SETI@home 需要更多的志愿者参与计算！[/color][/b]
新的更灵敏的接收器安装在阿雷西博上，频率覆盖范围比现在增强500倍。同时软件也将升级以处理新的数据来寻找外星文明，SETI@home将进入一个新的时代！
....
新的七组接收器安装在阿雷西博望远镜上，可以同时接受7个区域的信号，而之前只能对一个区域。另外更灵敏的能力，可以对40倍以上的频率范围检测偏振的无线电信号。
多重接收器帮助我们更好的消除干扰，并降低地面信号的影响。
我们正在进入一个新的时代，将能够扫描数十亿渠道。 阿雷西博正在优化这种搜索，因此，如果有外星文明的信号存在，我们和我们的志愿者会找到他们。
SETI@home 多年来一直受到各团体资助，包括美国行星学会和Sun Microsystems等，还有持续来自志愿者个人捐款。

呃.前段时间都已经不算Seti了.好吧,也努力算一点.项目好多哦.都有兴趣~[em03]

seti刚进08年就这么多动作啊，又更新

吓我一下，还以为是返回包来不及处理呢，这下没有关系，大家加油啊[em03]

300G有多少个任务???

SETI@HOME
越算越是觉得没意思了，不过我仍然会坚持的!

继续坚持~~

让INTEL给参加计划的志愿者折扣买Q6600。[em07]

SETI是我一直在进行的项目，希望在未来的某一天能够迎来突破

没觉得有意思过，唯一的一点分是不小心点的。
以后也不会去算

回复 #11 opernal 的帖子

这个没兴趣不要紧的，现在分布式项目繁多，覆盖很多范围，专业。参与自己喜欢的项目这是很重要的哦

比本山能忽悠啊[em05]

要是把微软或者google的~的计算机一起拉进来计算一定会快不少，就是不知道那些人愿意不了。

让intel给seti积分过百万的账号发一个打折卡

新手报个到，大家一起来。

我倒是比较好奇 ，我们当中有人给SETI在资金方面的资助了么?

seti@home+seti@office

各位老大，我是新来的也算了一个：name： 23fe07ab.16306.22976.13.6.130 评分为73.92
但我还不知道我算出来的是个什么东西。

请教各位老大如何查询自己计算出来的东西？

谢谢了，可以发e-mail到[email]lipchwj@163.com[/email].

5……心有余而力不足啊……

从99年开始一直坚持到现在真的算很不错了。
俺04年单位给配的电脑，从刚开包就几乎7/24没间断的坚持到现在。

[quote]原帖由 [i]dboy27[/i] 于 2008-1-18 17:17 发表 [url=http://www.equn.com/forum/redirect.php?goto=findpost&pid=235060&ptid=17460][img]http://www.equn.com/forum/images/common/back.gif[/img][/url]
我倒是比较好奇 ，我们当中有人给SETI在资金方面的资助了么? [/quote]
交了大把的电费啊。
虽然俺家里那台电脑只是在BT的时候才能长时间计算，可这电费至少涨5成啊。

[quote]原帖由 [i]szterry[/i] 于 2008-1-6 10:54 发表 [url=http://www.equn.com/forum/redirect.php?goto=findpost&pid=234299&ptid=17460][img]http://www.equn.com/forum/images/common/back.gif[/img][/url]
300G有多少个任务??? [/quote]
明显是将近1M个任务包，再加上校验的，至少放出2M个吧。

让艾伦给每个人一个Q6600吧

seti加油！大家快来加入seti！

我一下就接到了3个任务包

[em05] 永远支持seti

卖一台电脑，黑一台机器，为ＳＥＴＩ增加一份力量．．．呵呵．．．[em03]

回复 #28 zfm123 的帖子

这样不好。长此以往会给SETI以至全体分布式工作蒙上阴影。

还得自愿原则

找到外星人，叫外星人给咱们发奖金！