Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

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

by gargeug (#45131861) Attached to: Unifying Undersea Wireless Communication Using TCP/IP
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

by gargeug (#45129405) Attached to: Unifying Undersea Wireless Communication Using TCP/IP
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: Re:Lots of gullible people, like slashdot (Score 3, Interesting) 96

by gargeug (#41939257) Attached to: Foxconn Denies Plans For New US Operations
I looked up Dice Holdings, Inc and at first believed it was some \. jape, like a fake website constructed to mess with people. But further investigation showed it was no jape at all, and the crap blogspam I have seen populating this site now makes perfect sense. Thank you JustOK.

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

by gargeug (#41939079) Attached to: Foxconn Denies Plans For New US Operations
"...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: What is white house honey? (Score 1) 340

by gargeug (#41203217) Attached to: Ale To the Chief: White House Releases Beer Recipe
The recipe is pretty straight forward, but what is white house honey? It looks like it is 1 lb of actual honey based on the fact you add it at the end. But is it just normal honey, or is there some special twist that makes it 'white house honey'? Do they have a bunch of bees in the attic?

Comment: Stop apple posts? (Score 1) 221

by gargeug (#40882765) Attached to: Apple Comes Clean, Admits To Doing Market Research
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?

"Pascal is Pascal is Pascal is dog meat." -- M. Devine and P. Larson, Computer Science 340

Working...