Except they already had it. It was called the Chicago Card Plus and it worked perfectly for years (source: Chicagoan who used the CTA for many years every day). The question is, why did they have to change it?
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
A lot. Air is almost non-conductive, whereas seawater is highly conductive, so the interface is highly reflective, and refractive.
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.
Attempting to do some basic research for a contract and I need access to geomagnetic data from NOAA and their websites are down. Now I have to wait to see if a fitting function based on historical data works on current real-time data.
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.
"...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.
No shit. Now I know. Thanks for the knowledge.
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?
I just moved to Austin and am wanting to start hobbyist robotics, so this post was extremely useful. Thanks.
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?
So I forwarded this page to an ophthalmologist and apparently it is a well-known phenomenon for new IOL's.
So I was apparently logged out of my account gargeug I wanted to make this post from. Why is there not some prompt like "Are you sure you want to post this anonymously?"
Seriously. All this article is making me feel is dread knowing a new barrage of requests to update firefox will soon be arriving, and I will have to ignore them for a few weeks so I don't lose any of my add-ons. I'm not a software developer, but I'm pretty sure dread is not a feeling developers should be striving to instill.
There is a professor named Eric Klavins at University of Washington who was doing this like 2 years ago. I toured his lab and I think he already had all the basic logic gates working, and they were working on getting an oscillator going. Here is his site in case you are interested. http://depts.washington.edu/soslab/mw/index.php?title=Main_Page