问题: METI航天技术

Write to Galaxies

+4  

Treat galaxies like CD drives to send directional laser updates of our civilization, and survive in the minds of the distant future civilizations.

YAML 想法

Given that METI (MEssaging to Extraterrestrial Intelligence) is generally thought to be risky [*], it may be unlikely to have those civilizations try to signal to all the stars in the Milky Way, and upon picking up such signals, they would likely keep silence to keep strategic advantages.

So, statistically and from risk analysis perspective, we'd probably have better odds at discovering aliens by searching for them in other galaxies (not in Milky Way).

Imagine that we do intercept an informative signal of an intelligent civilization somewhere out there in the Andromeda galaxy. We'd know something very special, down to a particular star system, and we'd be guessing, whether it still exists, because it happened 2.5 million years ago. We'd probably even feel safe to send a signal back, and continue broadcasting, especially if the signal that we picked up were to be periodic like blog updates about that civilization.

If the signals from aliens in another galaxy were periodic and lasting, with new bits of information every time, it would certainly be something that stays breaking the news here in the Solar system. Inspired by that, a project from our side could be to set up powerful lasers, pointed to the nearby galaxies, and broadcasting our status like that not to our local, but to the future civilizations that don't yet exist in other galaxies.

A single laser could send out bursts of packages to cover entire Andromeda, treating Andromeda like a CD drive, and using same techniques to write to CD drive with a laser (just more bits per dot), over a period of say, a month, and repeat that. This way, all the civilizations in the Andromeda galaxy, in the line of sight to the Milky Way could get monthly updates. That would certainly increase the odds of them discovering us, and if other civilizations in other galaxies had the same way of thinking, and pointed their lasers to the Milky Way, perhaps we just need more powerful telescopes to pick that up: the intergalactic chatter might actually be a real phenomenon, that happens, cause: over very large distances, even the potential enemies have enough time to become friends.

It's amazing to think, that "if you take our most powerful lasers, and our largest mirrors, and pair them together, for a fraction of a second, they can produce light that outshines the Sun by factors of a thousand at more than a thousand light-years away." -- so the method that this particular way implies, is that of using such extremely directional lasers, to make them see a new star appearing and flickering in the Milky Way, so that, with sufficiently large telescopes they could read our "blog posts" from.









(别通知) (可选) 请,登录

考虑发送信号的周期性:宜居区内行星的中位轨道周期除以 6 到 12 之间的数字可能是一个好的开始。这是假设大多数技术文明将进化出类似手的肢体,每个肢体有 3 到 6 个手指,并且可能将它们用作参考基础,用于计算和划分他们的年份(轨道周期)到参考基础中的这个数量的部分.

Thinking of periodicity of sending signals: probably median orbital period of planets within habitable zones divided by a number between 6 and 12 could be a good start. This is assuming that most technological civilizations will have evolved hand-like limbs, which had from 3 to 6 fingers each, and likely used them as reference base for counting and dividing their year (orbital period) into this number of parts in the reference base.


知道绿色恒星不能自然存在于宇宙中,我们可以有目的地制造一颗绿色恒星(链接指向一个视频,回答为什么绿色恒星可以不存在)用绿色激光对从仙女座观察银河系的人来说是绿色的;)另一方面,也许我们和地球上的生命主要在可见光谱中看到的事实是相当随机的,--谁会正在专门寻找具有 520 或 532 nm 波长光的恒星?

Knowing that green stars can't exist naturally in the Universe, we could purposefully make a green star (link leads to a video answering why green stars can't exist) with a green laser to appear green to someone viewing MilkyWay galaxy from Andromeda ;) On the other hand, perhaps the fact that we and life on Earth primarily sees in the visual spectrum is quite random, -- who out there would be looking specifically for stars with 520 or 532 nm wavelength light?


LMC可能距离太近,因此可能被视为危险向其发送消息。

而且,...如果我们发送最有用的信息以求生存,我们会称其为星际之爱,因为实际上可能存在[共同目标](https://blog.mindey.com/2017/01 / 03 /一起逃逸熵黑洞/

LMC is probably too near, and thus may be considered dangerous to message to.

And,... if we send the most useful information for survival of information, would we call this -- intergalactic love, as there actually may be a common goal of preserving information. Additionally, if we do start think together as a civilization, what to send to the future civilizations, it may help us as a civilization politically.



    : 尹与及
    :  -- 
    :  -- 
    

Mindey,

附近的星系……大麦哲伦星系……16万光年远……

附近的星系……大麦哲伦星系……16万光年远……



    :  -- 
    :  -- 
    : Mindey
    

尹与及,

好吧,这个主意就是这样。好吧,我们可以选择一组最接近的星系来做到这一点。

Well, the idea is something like that. Well, we could choose a set of closest galaxies to do that.



    : Mindey
    :  -- 
    :  -- 
    

Mindey,

是要向仙女座星系发送激光频道的“地球博客/地球广播”吗?

:)

是要向仙女座星系发送激光频道的“地球博客/地球广播”吗? :)



    :  -- 
    : Mindey
    :  -- 
    

尹与及,

语言