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Comment Re:Radio waves are completely blocked by water. (Score 2) 68

Yes, thats all true. As I said above, its penetration depth is given by the frequency dependent skin depth of the medium. BUT, some things don't need much bandwidth, nowhere near as much as 1200 bps. And if the navy invested millions into a 28 mi antenna to produce that 76 Hz, the low bandwidth it gets, and the concept of radio in seawater, is obviously not that silly. http://en.wikipedia.org/wiki/Project_Sanguine

Comment Re:Radio waves are completely blocked by water. (Score 5, Informative) 68

Yes they do travel through water. Their attenuation is frequency dependent and is given by the skin depth of water. Lower frequency waves propagate further than high frequency. At the wireless frequencies, water highly attenuates its propagation such that it can only communicate a few meters, but submarine ELF frequencies (73 Hz) can penetrate on the order of 1 km with only 60 dB loss or so, and ionospheric waves (approx .5 Hz) go through the complete ocean and into the lithosphere. [Source: Me. I am currently doing heavy research into this subject for a research contract] As a layman thinking only of WANs and 2.4 GHz stuff I could see how you could make this mistake, but what you way is false. Even GHz waves will travel, albeit an insignificant amount, but still finite.

Comment Lots of gullible people, like slashdot (Score 2) 96

"...lots of people jumped to the salacious conclusion that a U.S.-based Foxconn factory could finally produce an American-made iPhone..." Including freaking /. itself at http://news.slashdot.org/story/12/11/09/0136211/foxconn-sees-new-source-of-cheap-labor-the-united-states. I've watched this site slowly assimilate into the blogspam world, and here is a perfect example.

Comment Stop apple posts? (Score 1) 221

I don't know where else to post this. Is there a way to stop any apple and apple/samsung patent war posts from being displayed to me? I can't express how much I don't care to see this on slashdot while I browse for interesting things, but seemingly have to. Is there a way to block these types of posts?

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