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Comment Re:Arrogance of geomodelers? (Score 1) 120

"Our geochemistry colleagues kept sending us back to the showers saying 'Your gravity field can't be right because none of the internal structure models are fitting.' But we do now know that we got the gravity field right. It was very difficult."

If the measurements don't fit your models, it doesn't mean the measurements are wrong. It could be measurement error, but it's more likely that your models are wrong. And they call themselves scientists.

So, if you measure neutrinos travelling across Europe faster than the speed of light, then it's most likely that the model that says neutrinos cannot travel faster than the speed of light is wrong?

I did plenty of labs in Physics undergrad days. Almost every time things didn't make sense it turned out to be measurement problems.

Comment Re:Finally (Score 1) 165

There are gobs to choose from: See canadianisp.ca.

To be fair most all of them rent most of their infrastructure from Bell or Rogers, but their policies can be quite different. For example, my ISP permits me to run servers and is net neutral on their network. Once the packets hit someone else's fiber it's beyond their control of course.

Comment Re:I won't care (Score 1) 142

Ah, sounds like you've been working with lower level stuff then. Any consumer GPS module these days consists of a module smaller than one square cm with serial output that you simply have to parse (plus stuff like a 1 pulse-per-second output pin).

NMEA-0183 is the ASCII protocol used by most marine equipment. GPSes also have a binary protocol which is quite a bit richer. Anyway, among other things they barf out your lat/lon and the date/time in UTC once per second.

Comment Re:I won't care (Score 1) 142

By "the GPS protocol" I meant what is sent OTA from the satellites, which does indeed include UTC correction. In other words, there is no excuse for a GPS module to not provide a means of giving UTC. And any GPS that produces NMEA-0183 output has no choice but give corrected UTC time.

The binary SiRF protocol also provides UTC.

And yes the time will be off until you get a fix, but of course you're not supposed to use the timing data until the unit does have a lock.

Comment Listen to WWV in North America (Score 4, Interesting) 142

On 5, 10, 15 or 20 MHz: at 00:00Z you will hear minute consisting of 61 seconds.

If you happen to have a radio controlled timepiece, this will also be your chance to see if they handle the leap second conversion or took the lazy way out and just rely on the next time sync fix the time.

00:00UTC June 30th 2012 is a Saturday evening in North America. What better way to celebrate a Saturday night?

Comment Re:BASIC is a horrible language. (Score 1) 783

Exactly. Python is completely unusable both in embedded systems, and in anything where performance matters the least little bit.

Since android phone apps have a good chance of being in both categories ...

That is complete and utter nonsense. And I say this as an embedded systems developer; we currently have a product that is almost 100% python based. It even runs a webserver in python and the performance is fine. It's a pretty complicated multi-threaded app.

I'm not the only one, either. Only a few months back I was investigating an embedded system, and tons of stuff in it was written in python.

Furthermore, my Symbian S60 smartphone runs python. It actually has some very impressive 3D apps written entirely in python

Python's speed is comparable to any other typical interpreted language.

Comment Re:Not all religions are bad (Score 1) 910

Crusade: 1706, respelling of croisade (1570s), from M.Fr. croisade (16c.), Sp. cruzada, both from M.L. cruciata, pp. of cruciare "to mark with a cross," from L. crux (gen. crucis) "cross."

The crusades were Christian. Even the name says so. Don't pretend it wasn't.

Gulags were part of Stalinism. So was building dams, rocketry, idiotic agricultural policies, atheism and many other things. Stalin could have been a devout Catholic and still have had Gulags. What is hard to understand about this?

Comment Re:Landing (Score 1) 379

Wish I had mod points. Finally something informative from an actual pilot instead of a bunch of blowhards.

Hell, I only fly simulators (XPlane) and even there it's clear that automatic landings are last-choice affair. They can't deal with the unexpected (gusts, incursions) at all.

Comment Re:How high to burn up on reentry? (Score 1) 34

Alas, no. The reason stuff like satellites burn up on reentry is that they are moving at least 28000 km/hr (about mach 24) when they reach the atmosphere. They had to be going that fast to be orbiting to begin with.

A very high altitude drop from initial zero speed will reach a pretty high terminal velocity where the air is thin (even mach 1), but it's nowhere near enough to cause a burn up.

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