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[Ozle]

GPS technology has a built in limit, generally around 1200mph, after which it shuts off.
This is to prevent it being used to guide balistic missiles.

[Davio]

Well, that's odd as GPS was created by the US department of Defense. You would think that guiding ballistic missiles was just the purpose they had in mind.

[soulnet]

GPS technology has a built in limit, generally around 1200mph, after which it shuts off.
This is to prevent it being used to guide balistic missiles.

Even with that power cap, I think it should cost at least $5.

[Kirian]

Ozle's "fact" of the day

[Watno]

I can't believe i actually bought this until Kirian's comment.
Then I thought about how GPS works...

[Ozle]

http://en.wikipedia.org/wiki/CoCom

http://blog.jgc.org/2010/11/gaga-1-cocom-limit-for-gps.html

[Kirian]

Let's qualify this then, thanks to one of the references on the Wiki page: US-built GPS systems that are qualified for export must follow these limits, per the FAA and FCC.  Pretty certain that doesn't apply to missiles we build.  I guess those are technically meant for "export" but I don't think that part matters.

[Ozle]

its quite interesting, because I went form the GPS page to CoCom and then found out what the CoCom countries were, and then onto the companies like Toshiba that broke the agreement

[Witherweaver]

So, is Ozle going to nuke us?

[Ozle]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

[Kirian]

its quite interesting, because I went form the GPS page to CoCom and then found out what the CoCom countries were, and then onto the companies like Toshiba that broke the agreement

I'm shocked, SHOCKED I say, to hear that companies broke this agreement.  Next you'll tell me Google is passing information on to the US government!

[Witherweaver]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

You could simply be biding your time, luring us into a false sense of security...

[Ozle]

its quite interesting, because I went form the GPS page to CoCom and then found out what the CoCom countries were, and then onto the companies like Toshiba that broke the agreement

I'm shocked, SHOCKED I say, to hear that companies broke this agreement.  Next you'll tell me Google is passing information on to the US government!

I wouldn't dream of saying that (they might be listening...)

[Ozle]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

You could simply be biding your time, luring us into a false sense of security...

This would imply a subtlety that I am not capable......plus if one has nukes, one does not need to be careful (Ancient Chinese Proverb)

[Awaclus]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

You could simply be biding your time, luring us into a false sense of security...

Why would he need to lure us into a false sense of security if he can just nuke us?

[Witherweaver]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

You could simply be biding your time, luring us into a false sense of security...

Why would he need to lure us into a false sense of security if he can just nuke us?

It's more fun that way, obviously.  Same reason why the Bond villains feel the need to divulge their evil plot instead of just killing Bond.

[theory]

Well, that's odd as GPS was created by the US department of Defense. You would think that guiding ballistic missiles was just the purpose they had in mind.

GPS, although accessible to civilians since Reagan's order following KAL-007, wasn't ubiquitously useful until 2000.  The DOD intentionally degraded the GPS signal so that (theoretically) only the U.S. military had access to accurate GPS.  Clinton ordered this policy (Selective Availability) turned off in 2000, as the DOD had developed other methods of denying GPS on a regional basis, and civilian technology was beginning to develop workarounds anyway.  (Which is why Russia / China are actively launching their own "GPS" satellites.)

In other words, it is not unprecedented to have a separate "civilian GPS" and "military GPS".  The relevant rule is that all U.S. GPS receivers for export must either a) shut off above 11km in altitude and 515 m/s; or b) be classified as a weapon requiring a State Department export license.

[Ozle]

Europe is also about to launch its own, more accurate GPS

http://en.wikipedia.org/wiki/Galileo_(satellite_navigation)

[Teproc]

About to ? It's been 10 years or so since I first heard about Galileo. I assumed it had been buried long ago.

[Ozle]

About to ? It's been 10 years or so since I first heard about Galileo. I assumed it had been buried long ago.

I hope not, my company is doing a lot of the mission critical programs...

From Wiki....
The first two Galileo In-Orbit Validation satellites were launched by Soyuz ST-B flown from Guiana Space Centre on 21 October 2011,[31] and the remaining two on 12 October 2012.[32]
All further satellites will have Full Operational Capability (FOC). 22 are now on order, with the first two due to be launched together on a Soyuz rocket from French Guiana midway through 2014.

[Kirian]

About to ? It's been 10 years or so since I first heard about Galileo. I assumed it had been buried long ago.

I hope not, my company is doing a lot of the mission critical programs...

So Ozle does work on satellites!

[Ozle]

About to ? It's been 10 years or so since I first heard about Galileo. I assumed it had been buried long ago.

I hope not, my company is doing a lot of the mission critical programs...

So Ozle does work on satellites!

I'm just the Janitor...

[Witherweaver]

So on the subject of GPS, we all know that clocks in orbit around the Earth will run faster (apparently the calculations show about 38 microseconds) compared to clocks on the surface of the earth.  This is due to relativistic gravitational effects (and from the satellites traveling quickly).  Apparently there is some disagreement on whether this time discrepancy is actually relevant and accounted for.  E.g., http://www.alternativephysics.org/book/GPSmythology.htm.  Doing random searches about GPS and relativistic effects, I ran across a number of things, including arguments with people that apparently don't believe Einstein.

Anyone know much about this?

[Ozle]

Damnit, i hate it when people hijack threads and take them off into different non-relevant directions!

[Kuildeous]

So, is Ozle going to nuke us?

If I could do you not think it would have happened by now?

Im quite accident prone....

You could simply be biding your time, luring us into a false sense of security...

That's what Ozle gets for storing his nuke codes in Goko.