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Post by Wolfgang on Dec 5, 2019 19:14:11 GMT -5
There are 4 turkey parts in that list. The statue of limitations has run on this one.
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Post by Deleted on Dec 5, 2019 19:34:31 GMT -5
There are 4 turkey parts in that list. The statue of limitations has run on this one. Not very fast, I assume.
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Post by mikegarrison on Dec 5, 2019 20:33:55 GMT -5
There are 4 turkey parts in that list. The statue of limitations has run on this one. I would hate to be an internet spelling cop, so I'll not mention the difference between a statue and a statute.
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Post by Wolfgang on Dec 5, 2019 21:44:58 GMT -5
That was a spelling error.
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Post by mikegarrison on Dec 5, 2019 21:58:51 GMT -5
The Richter scale is logarithmic, so one might think it doesn't go to zero. Except what do you call it if there is no motion? Anyway, I'll say 1-9.9
Anyway, are we talking about the current Richter Scale or as it was first created?
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Post by Wolfgang on Dec 5, 2019 22:05:07 GMT -5
The trivia is for lay people. The quiz was based on my knowledge without looking it up, except for #2. I myself don't even know the nuances of the changes to the Richter Scale since its inception. Don't get hung up on the details.
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Post by mikegarrison on Dec 5, 2019 22:06:09 GMT -5
OK, well I'll guess that the Alaska earthquake was the biggest.
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Post by Wolfgang on Dec 5, 2019 22:15:03 GMT -5
When I did Bode Plots, at the low end, it was labeled
10-2 or sometimes "(0)"
for low pass filters and other electronic systems.
Some really low number.
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Post by mikegarrison on Dec 5, 2019 22:31:14 GMT -5
From my understanding, the scale approaches 0 at its low end but undefined at 0 because it's logarithmic. When I did Bode Plots, at the low end, it was labeled 10-2 or sometimes "(0)" for low pass filters and other electronic systems. Some really low number. The decibel system is logarithmic, but 0 dB is a thing. This is because decibels are calculated from a ratio of the sound pressure (or sound power) to a reference sound pressure (or sound power). It ends up with a term of log10 (actual/ref), which is the same as log10 (actual) - log10 (ref). So if the actual = the ref, the result is 0. But there is an inherent assumption that the sound pressure itself can never actually be zero, because the log10 of zero is undefined. Anyway, I looked up the Richter Scale and it seems to have been defined around the limitations of a particular kind of instrument that was common when it was developed. Other scales for seismic strength have been developed since, and they are usually calibrated so that they give about the same number for the same earthquake (at least for the type of earthquake that the Richter scale was originally developed to measure).
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Post by Wolfgang on Dec 5, 2019 22:38:03 GMT -5
Well, you can get log (1) = 0, so the low end can be zero. But a system at rest with no earthquakes seems odd that log (0) is undefined. It seems you have to at least have some shaking such that there's at least a "1" inside the function to get log(x)=0.
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Post by mikegarrison on Dec 5, 2019 23:53:02 GMT -5
Well, you can get log (1) = 0, so the low end can be zero. But a system at rest with no earthquakes seems odd that log (0) is undefined. It seems you have to at least have some shaking such that there's at least a "1" inside the function to get log(x)=0. I guess the situation is that the Richter scale is for measuring earthquakes, not for measuring the lack of earthquakes, so what it gives when there is no earthquake is not important.
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Post by Wolfgang on Dec 5, 2019 23:55:26 GMT -5
Or maybe the instrument is so sensitive that there is always shaking registered, however minimal? It's like being inside a perpetually moving car.
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Post by Wolfgang on Dec 6, 2019 2:21:49 GMT -5
AVATAR trivia bonus (worth 150 points)
Who's the dude in my black-and-white avatar?
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Post by mikegarrison on Dec 6, 2019 2:44:10 GMT -5
AVATAR trivia bonus (worth 150 points) Who's the dude in my black-and-white avatar? I forget his name, but I know he was one of the New Kids On The Block.
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Post by Wolfgang on Dec 6, 2019 4:16:50 GMT -5
AVATAR trivia bonus (worth 150 points) Who's the dude in my black-and-white avatar? I forget his name, but I know he was one of the New Kids On The Block. Nope.
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