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[新闻] Asteroid马上可以运行在Android系统下了

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发表于 2013-2-20 23:50:14 来自手机 | 显示全部楼层 |阅读模式
如题,爪机、平板上终于有像摸样点的刷牌项目了(WuProp不算)。
Kyong说Yes, I have plan, the application for Android is almost ready.
树莓派已经可以跑这个项目,800mHZ要51个小时,但是树莓派的CPU没有一级二级缓存,android一般应该能快速一些。
啥时候WCG也能这么大方,刷牌就有指望了。
发表于 2013-2-21 09:25:39 | 显示全部楼层
目前还很冷门的项目呢,WIKI里没介绍,TC也还没几个人参加。
android平台上的项目越来越多是好事啊。
 楼主| 发表于 2013-2-21 12:58:08 | 显示全部楼层
jpegreader 发表于 2013-2-21 09:25
目前还很冷门的项目呢,WIKI里没介绍,TC也还没几个人参加。
android平台上的项目越来越多是好事啊。 ...

我觉着这个项目比Milkway@home要现实一些。

Milkway的目的是creating a highly accurate three dimensional model of the Milky Way galaxy using data gathered by the Sloan Digital Sky Survey.
可是咱们还没有飞出太阳系的载人飞船呢

Asteroid的目的是监控太阳系内的小行星,不仅能够预测威胁,发现资源,为百年的后的太阳系内资源开发做准备。
- Besides basical research about asteroids, what could be the practical applications of the knowledge which is worked out here?
Some asteroids cross the orbit of the Earth and there is a non-zero probability of the collision. In such cases, it is very practical to be able to predict the trajectory of the asteroid for long time in the future (tens of years). For an accurate prediction of the trajectory, also non-gravitational forces have to be taken into account, namely the so-called Yarkovski effect (the net force caused by the thermal radiation of the surface changes the orbit). And this effect depends on the orientation of the spin axis of the asteroid and its shape.

- Could it serve, in longterm view, for purposes as described by the user cesium_133? (I may have missed it, but how does knowing shape and spin materially benefit us in our knowledge of asteroids? There must be something to it, but the most important info we can get on these rocks is trajectory. What else is of equal or close importance? Contact probability with another asteroid, composition (one rock/several rocks/rubble pile)? I know you all have it worked out; I've just never heard of a project that figured out shape and orbital rotation...)
Very little is known about the physical properties of the members of asteroid population. By deriving shapes and spins of a significant part of the population, we can learn a lot about the origin and evolution of the whole Solar System.

- Could it be useful for the purposes of asteroid mining, as planned by Planetary Ressources?
Definitely! Nobody would send a mission to an asteroid without knowing the basic physical properties of that asteroid.

- Are there already contacts to other groups and institutions (like PR, ESA, etc.), whom could have use of the here produced knowledge?
We have contacts to other research groups, not to the space agencies directly.

不过没有高效的无工质引擎,仅凭现有的化学发动机想有效利用小行星资源是困难的。


Who wants to watch online the asteroid see http://www.ustream.tv/nasajpl2

Everyone, who is interested in the passing asteroid 2012 DA14, there is some information on this website
http://remanzacco.blogspot.cz/2013/02/close-approach-of-asteroid-2012-da14.html

What is this? This is true or fake? http://www.youtube.com/watch?feature=player_embedded&v=WaQIPBqoQ-Q
The text for the video: "Look just below the tail and see the UFO that catches up and runs into a meteor, breaks it and goes away".

InnerSolarSystem-en.png
The inner Solar System, from the Sun to Jupiter. Also includes the Main Asteroid Belt (the white donut-shaped cloud), the Hildas (the orange "triangle" just inside the orbit of Jupiter) and the Jovian Trojan's (green). The group that leads Jupiter are called the "Greeks" and the trailing group are called the "Trojans" (Murray and Dermott, Solar System Dynamics, pg. 107). This image is based on data found in the en:JPL DE-405 ephemeris, and the en:Minor Planet Center database of asteroids (etc) published 2006 Jul 6...http://commons.wikimedia.org/wiki/File:InnerSolarSystem-en.png?uselang=ru


以上的均来自Asteroid@home的Message Board,应该蛮有意思的,我没时间细看。
发表于 2013-2-21 13:38:16 | 显示全部楼层
SaintLaser 发表于 2013-2-21 12:58
我觉着这个项目比Milkway@home要现实一些。

Milkway的目的是creating a highly accurate three dimensio ...

呃,Milkyway的简介是这么说,但具体要复杂得多,不只是造个模型给人看这么简单,Milkyway的一个重要目标是探索银河系中的暗物质的分布,通过探测暗物质的重力对周边环境的影响来确定暗物质的位置,暗物质可是目前物理学界的一大热门。另外,Milkyway还有其它目标,可惜我英文不好,看不懂。总体上讲,Milkyway研究的是天文学中的前沿话题,不只是造个3D模型而已。

asteroids确实看起来比较现实,但基础科学这种东西对之后的科学发展的影响是很不好说的,所以我觉得比较两个项目哪个更现实不大好。两个都是好项目,我不知道为什么asteroids的参与者会那么少?

 楼主| 发表于 2013-2-21 14:28:40 | 显示全部楼层
jpegreader 发表于 2013-2-21 13:38
呃,Milkyway的简介是这么说,但具体要复杂得多,不只是造个模型给人看这么简单,Milkyway的一个重要目标 ...

有空去MILKWAY的论坛逛逛,估计有很多有意思的信息。
发表于 2013-2-21 14:36:46 | 显示全部楼层
我的800MHz Android用Native跑milkyway,仅仅充电时计算BOINC,从开始到任务到期都跑不完一个啊
发表于 2013-2-21 14:41:22 | 显示全部楼层
Milkyway的科学背景,可以参看这个:
http://songshuhui.net/archives/20062

评分

参与人数 2基本分 +56 收起 理由
jpegreader + 6 这么好的文章!应该果断扔wiki啊!.
xx318088 + 50 翻译的很好

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 楼主| 发表于 2013-2-21 17:17:55 | 显示全部楼层
polone 发表于 2013-2-21 14:36
我的800MHz Android用Native跑milkyway,仅仅充电时计算BOINC,从开始到任务到期都跑不完一个啊 ...

先看看CPU是什么型号的,如果是qualcomm的MSM 7230 scorpion架构的可以在root之后用软件超频到1.5GHZ,因为MSM 7230 的800MHZ本来就是锁频的结果。我的HTC DESIRE Z 退休后的任务就是跑分,不过是Subsetsum@home(一天600分),顺便还有ALX(700分),Milkway@home要15个小时一个包,只能跑N-BODY这个子项目。
发表于 2013-2-21 17:33:10 | 显示全部楼层
SaintLaser 发表于 2013-2-21 17:17
先看看CPU是什么型号的,如果是qualcomm的MSM 7230 scorpion架构的可以在root之后用软件超频到1.5GHZ,因 ...

我的m9超到1000Mhz很快就被过热降频了。不过milk给我的android都不是nbody,因为pc也挤奶的,如果只选nbody,pc就只有nbody了。并且NativeBoinc显示不准,一个包实际得跑40个小时~
 楼主| 发表于 2013-2-21 17:44:03 | 显示全部楼层
polone 发表于 2013-2-21 17:33
我的m9超到1000Mhz很快就被过热降频了。不过milk给我的android都不是nbody,因为pc也挤奶的,如果只选nbod ...

魅族M9是Samsung S5PC110(蜂鸟) CPU , CORTEX-A8,45NM。要不你转投SUBSETSUM吧。六七个小时差不多足够了。
TEGRA3跑项目能稳定在1.2GHZ(冬季),MILKWAY要19.5个小时。
我看了我的MILKway设置是全选,印象中ANDROID只有N-BODY的包。

点评

好,我一会有空试试 :)  发表于 2013-2-21 19:00
 楼主| 发表于 2013-2-21 18:08:44 | 显示全部楼层
fwjmath 发表于 2013-2-21 14:41
Milkyway的科学背景,可以参看这个:
http://songshuhui.net/archives/20062

对于看完文章觉着:先搞定Einstein@home,弄明白引力是什么再说吧,太多不确定了。
顺便问一下哪里有The Case for Mars的英文PDF文件?


发表于 2013-2-21 19:16:00 | 显示全部楼层
本帖最后由 swh@home 于 2013-2-21 19:30 编辑
SaintLaser 发表于 2013-2-21 18:08
对于看完文章觉着:先搞定Einstein@home,弄明白引力是什么再说吧,太多不确定了。
顺便问一下哪里 ...

只找到了The Case for Colonizing Mars。(无视吧,删除线找不到了)

只找到了epub的版本。
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