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To: goldworldnet who wrote (373277)7/16/2010 7:33:47 PM
From: Tom Clarke2 Recommendations  Read Replies (1) | Respond to of 793895
 
U.S. Authorities Shut Down WordPress Host With 73,000 Blogs

After the U.S. Government took action against several sites connected to movie streaming recently, nerves are jangling over the possibility that this is just the beginning of a wider crackdown. Now it appears that a free blogging platform has been taken down by its hosting provider on orders from the U.S. authorities on grounds of “a history of abuse”. More than 73,000 blogs are out of action as a result.

Hot on the heels of recent threats from Vice President Joe Biden and Intellectual Property Enforcement Coordinator Victoria Espinel directed at sites offering unauthorized movies and music, last month U.S. authorities targeted several sites they claimed were connected to the streaming of infringing video material.

Fears remain, however, that this action is only the beginning, and that more sites will be targeted as the months roll on. Indeed, TorrentFreak has already received information that other sites, so far unnamed in the media, are being monitored by the authorities on copyright grounds.

Now, according to the owner of a free WordPress platform which hosts more than 73,000 blogs, his network of sites has been completely shut down on the orders of the authorities.

melissa.amplify.com



To: goldworldnet who wrote (373277)7/16/2010 9:08:12 PM
From: LindyBill  Read Replies (2) | Respond to of 793895
 
submariners have yet to benefit from the revolution in navigation that it allows

They are running buoys to the surface.



To: goldworldnet who wrote (373277)7/16/2010 9:40:59 PM
From: ManyMoose  Read Replies (2) | Respond to of 793895
 
Thanks, Josh. That diagram really doesn't show how GPS works very well, though. A diagram that did a good job would have to be in four segments or panels.

The first panel would show one satellite emitting a signal toward the earth. That signal would scribe a circle around the earth's surface representing every place the signal reaches the surface at exactly the same time, much like the black band at the top of a white sock reaches one, two, three etc. inches up your ankle at the same time all the way around your leg. The position of that circle is determined by how long it takes for the signal to get from the satellite to the earth, and then for the circle to slide around the earth like the black band on a sock.

That's a little wordy, but understanding it is essential to understanding all the other diagrams.

The second diagram would should two satellites emitting signals. The circles they scribe would intersect in two places on opposite sides. So you know that your position has to be in one or the other of the two intersections.

The third segment rules out one of the two intersections by a signal from a third satellite. Only one of the two intersections can receive the third signal at the measured time received by your GPS device. The 3rd time interval that you actually got would agree at one point but not at the other, so it couldn't possibly be the other point.

The system knows how to calculate the latitude and longitude of every point on earth by very precise calculations of the exact time it takes all three signals to arrive at your location.

A fourth signal allows the system to calculate elevation. Sometimes you can get more satellites, which helps to improve the precision of your fix.

When I became familiar with GPS it was difficult to get signals through a dense tree canopy and in the mountains. I can't imagine how it would be possible for GPS to guide a drill bit under a mile of water and even more bedrock.



To: goldworldnet who wrote (373277)7/16/2010 10:10:20 PM
From: greenspirit  Read Replies (2) | Respond to of 793895
 
GPS does not work underwater-the radio signals on which it depends cannot pass through water. So submariners have yet to benefit from the revolution in navigation that it allows.

Although it's true radio signals on which GPS depend do not pass through water, the notion that submariners have not benefited from GPS is patently ridiculous. Prior to GPS, inertial navigation systems had position reset by low earth orbit satellites which may only pass within doppler altitude once a day, depending on location. With GPS, a moment at P/D is all it takes to update position and verify INS systems are working correctly. The improvement has dramatically extended the ability to operate in shallow water for extended periods of time and improved the accuracy of INS systems.

Many other advanced tracking concepts would not be possible without GPS, including the worldwide use of AIS (Automatic Identification System).