Quote:
Originally Posted by vtec to vvel
So you're telling me it's much easier to communicate with someone that is millions of miles away and in space with unknown territory/variables than someone who is less than 3 miles underwater on home turf with better known variables?
We can map the moon, but we can't map out 3 miles of underwater of the general area of where the Titanic is? We don't need to map out the entire ocean for this, let alone the Mariana Trench.
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Yes, I'm telling you exactly that. I'll even give you another analogy. One person in space, the other on earth. The dude in space only needs to make a flash of light and you will see it, regardless of your distance. If you replace light by radiowaves, you will get communication.
Now beneath the deep ocean...is a different medium. There are other objects in between (hint: there are virtually NO objects in space between us and the moon [except maybe some satellites]), and there are also deep sea caverns, and the pressure is larger, and waves do not travel freely in this medium.....even light can't penetrate it.....do...you....see where I'm going with this?