Domain: digilife.be
Stories and comments across the archive that link to digilife.be.
Comments · 7
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Re:Fewer books, more cards
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Re:Fewer books, more cards
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Re:Fewer books, more cards
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Re:Fewer books, more cards
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Re:A good, free reference (even more!)
That one is my favorite too (though I used to use a cssv1 version that is very similar and the sources are obviously similar.
I also really like the diagram in this one but don't like how the rest of it is organized. Which is too bad because anyone that owns a domain name of ilovejackdaniels.com deserves more positive praise.
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Do It Yourself Suggestion
You know, the best method I've used to come up with what you're looking for is to just use a search engine and either blow up what you find or post it as normal size or put it in a binder that's always available. You can find some nice PDFs here if you want to take that route or you can look all over the place and mix/match. I personally only print out those I find myself using over and over again.
If you absolutely just want high quality print and don't have time to do this yourself, just visit Learn & Thrive which, to my recollection, has some decent sized posters available. They don't have the very particular kinds of posters you're asking for but then again, I don't know anybody who would do Oracle 10 specifically.
My suggestion is to get a high quality PDF from those first two links and just blow it up and have it laminated at Kinkos. Cost? Probably a lot less then buying something online.
If you really really want to do it yourself, I would suggest using The Gimp (or your favorite image editor) to capture images and text and make your own 'cheat sheet' with everything specific to where you work that would be pertinent. Share it with everyone else if you do and make sure to export as a high quality file format. Have it printed and keep it updated and specific to your workplace. If it's worth that much for productivity, you can probably convince your boss that the ROI is there for your time and money to get them printed. -
Re:Statistical anomaly? More like a bad modelBut isn't it true that most of records of past CMEs are based on those directed towards earth? If they weren't at least somewhat in our direction, we'd be unlinkely to know about them
True. Some indicators for solar activity have been recorded for over a hundred years; the aforementioned magnetometer data and the sunspot number: http://www.ngdc.noaa.gov/stp/IONO/sunspot.html
Also, prominences located at the edges of the visible "disk" of the sun have been observed probably as long as that: I found some nice modern day examples in here: http://www.digilife.be/club/Franky.Dubois/world.h
t mBut, none of these methods produce quantitative data of the precision or scope available today. One of the top instruments (well, intstrument platform actually)is the SOHO spacecraft launched in 1995 http://sohowww.nascom.nasa.gov/
There have probably been other solar observing satellites prior to soho, but I can't remember any specifics (anyone?).
So, yes, unless a particle storm from a CME event hit earth square in the face, so to speak, there would be no quantitative data of such an event older than... a handful of decades?
...both CMEs came from the same spot on the sun?Yes, they did. The culprit is known as "sunspot 486". More data at www.spaceweather.com.
Is the sun's rotation much greater than 24 hours?
Actually, there's a latitudal variation to the angular speed of the sun's surface. The period of sun's rotation around solar equator is 29 (Earth)days. On the 60 latitude it's 25 days.
If, however, we do have 100+ years date on all CME events, we would be able to say that it's a statistical anomaly. I just think it's more likely that we don't understand enough about the sun's behavior to properly characerize this event.
I suppose it's an anomalous event in the scope of the recorded history of Earth's magnetic field data... True, to extend this probabilistic term to the entire lifespan and surface of the sun would be silly. But, you have to take in he human aspect of the situation; it's on of the biggest events monitored and recorded. It's a one thing to have the mathematical intuition that events of some magnitude are possible, and to actually witness one (ie. you know that it's possible to win lottery. But you don't, very often. At least I don't
:) )