Your comments are helpful, but still not 100% accurate.
The rotation rate of the radar is faster and the volume updates are faster as well. CASA currently operates on a one minute "heartbeat" where many scans at different elevations are completed which cover a large portion of the total reachable volume.
While CASA radar does not provide a traditional "full volume" scan this is by design. For the first time we are dealing with a weather sensor that reacts to the environment automatically adjusting it's scanning pattern to be appropriate to the weather and follow storm paths.
CASA is running on a range much shorter than Nexrad. The current testbed is actually at 40 km range. The primary flaw or gap we are filling is the lower atmosphere which, as you stated, is due to the Earth's curvature and therefore a short range is most desirable.
The CASA radars are indeed full Doppler (not just marine radar) with dual polarization as well. They are currently mechanically steered but the technology under research will adapt quite easily to electronically steered beams from phased array radar panels as well.
As a side note the Nexrad system is indeed being upgraded in place to handle dual polarization which should improve snow detection and precipitation estimation.
Also "Super-res" is being deployed. This is a software change that makes the radar appear to have greater resolution by changing the way the signal is processed into smaller "bins". Literature seems to indicate this will help the human observer of the radar, but with the increased visual noise the algorithms will not see a significant improvement.
Full disclosure: I am a graduate research assistant working on the project.
I agree: "Former scientists were not idiots." However, leading scientists used to think data pointed to a geocentric solar system and universe. Clearly there are many more examples like this, some much more modern.
Perhaps the larger problem is our natural egotism! What we have discovered is "absolute truth", rather than the more reasonable approach of "the best explanation available".
So in the end this posting to Slashdot will serve the author (at least) three purposes: 1) Additional rebuttal arguments for the smoking issue 2) Feedback from a group of people on the "pay for argument" model. 3) Help the author assess other people's reaction to his "debate for debate's sake" viewpoint.
Ok, I don't really fell THAT used, but I do find it amusing that item number three might actually be the authors true intent of this entire exercise.:)
Also... Go Slashdotters! I already see several great rebuttals posted!
Hmmm... makes me think we need to find the registration timestamps and get this in order. My friend (ID 1854 http://slashdot.org/~m1m3r ) signed up within a week of me if we remember correctly.
I had the same fundamental problem with the redundancy of TCWWW. I swore several times, and never followed through. To start a web site that always redirected to http://qqq.domainname.com/ . Note this also "solves" the cookie problem.;-)
Of course, I never ended up doing... ah well. Good times back in th elate '90s. Oh and my Everything(2) node http://www.everything2.com/index.pl?node_id=383 registration date makes me feel fairly old too. I jumped on when the DNS information got leaked and got myself a nice "RudeDude" graphic rendered before the box crashed and the feature was turned off.
A really powerful and flexible (generalized) viz tool is OpenDx http://www.opendx.org/ which started as a commercial IBM venture and is now an open source project. It uses visual programming (EG plugging modules together) to generate the visualizations so you don't need to write your on OpenGL or something. Even with just three "modules" plugged together (and all default settings) you'll start to see your data in 2-space or 3-space.
Your thoughts on the economics sound spot on to me.
After reading the entire article I'm forced to summarize it as: What: An economic bubble burst. Who: Dvorak thinks he can read the mind of "Every single person working in the media today..." When: Dvorak doesn't even propose a time/line. Who/Where: Dvorak lists six items, four of which he nearly dismisses on his own as unimportant! How: As you say, Dvorak isn't addressing any economics. Why: Because Dvorak says so?
What a joke.
Re:Wrong number, in both the GP and the summary!
on
A Mighty Number Falls
·
· Score: 3, Funny
"Risk analysis" is a formal approach to what you are talking about. To a lesser extent "Decision Science" and "Influence Diagram" are also attempts at tackling this type of problem.
Google scholar will turn up many papers in this area and I know that my school (University of Virginia in the Systems and Information Engineering department) has some active research in "Cyber Security" and related security planning. http://www.sys.virginia.edu/risk/
Your PC got harshed, right, 'cause your system heaps at the wrong parameter. So l toasted the dated directory, tweaked the P-RAM... and reglazed your subroutine.
- Crawl, in "Son In Law" (Pauly Shore)
How is Freenet not mentioned in this context. It is decentralized and other than the dropped packets / routing needed for anonymity it is swarming dowloads since any node might have the data you need.
I saw this story floating in the mysterious future and tried to warn Malda. I would theorize that he needs to make "The Mysterious Future" a little larger window if he really wants to get help in preventing dupes. Or are there really THAT few subscribers seeing pre-post stories?
I previewed this twice and still missed the "time" typo. Darn human error. I guess is time to write a browser hack to check textarea's for spelling before submission.
Communication is important and yet difficult.
on
A Word a Day
·
· Score: 1
This book review just begs me to post one of my all tiem favorite quotes:
"To use the same words is not a sufficient guarantee of understanding; one must use the same words for the same genus of inward experience; ultimately one must have one's experiences in common."
- Nietzsche
So, one could say that an expanded and more accurate vocabulary is an attempt at gaining the same experiences as others.
Slashdot Mirror
I tried to tag it as "badlink" and by accident ended up with multiple incorrect tags that I can't delete. What a winning interface.
Space is big
Space is dark
Its hard to find
A place to park
Burma Shave
Dude, get with the timecube there are no time "zones".
Your comments are helpful, but still not 100% accurate.
The rotation rate of the radar is faster and the volume updates are faster as well. CASA currently operates on a one minute "heartbeat" where many scans at different elevations are completed which cover a large portion of the total reachable volume.
While CASA radar does not provide a traditional "full volume" scan this is by design. For the first time we are dealing with a weather sensor that reacts to the environment automatically adjusting it's scanning pattern to be appropriate to the weather and follow storm paths.
CASA is running on a range much shorter than Nexrad. The current testbed is actually at 40 km range. The primary flaw or gap we are filling is the lower atmosphere which, as you stated, is due to the Earth's curvature and therefore a short range is most desirable.
The CASA radars are indeed full Doppler (not just marine radar) with dual polarization as well. They are currently mechanically steered but the technology under research will adapt quite easily to electronically steered beams from phased array radar panels as well.
As a side note the Nexrad system is indeed being upgraded in place to handle dual polarization which should improve snow detection and precipitation estimation.
Also "Super-res" is being deployed. This is a software change that makes the radar appear to have greater resolution by changing the way the signal is processed into smaller "bins". Literature seems to indicate this will help the human observer of the radar, but with the increased visual noise the algorithms will not see a significant improvement.
Full disclosure: I am a graduate research assistant working on the project.
I agree: "Former scientists were not idiots." However, leading scientists used to think data pointed to a geocentric solar system and universe. Clearly there are many more examples like this, some much more modern.
Perhaps the larger problem is our natural egotism! What we have discovered is "absolute truth", rather than the more reasonable approach of "the best explanation available".
Also seen in 2006 posts:
http://www.sinodaily.com/reports/Chinese_Sub_Approached_US_Aircraft_Carrier_Undetected_999.html
http://www.cbsnews.com/stories/2006/11/14/world/main2179694.shtml
http://madhousethought.blogspot.com/2006/11/chinese-submarine-stalked-uss-kitty.html
This appears to be a year old!
http://www.cbsnews.com/stories/2006/11/14/world/main2179694.shtml
So in the end this posting to Slashdot will serve the author (at least) three purposes:
:)
1) Additional rebuttal arguments for the smoking issue
2) Feedback from a group of people on the "pay for argument" model.
3) Help the author assess other people's reaction to his "debate for debate's sake" viewpoint.
Ok, I don't really fell THAT used, but I do find it amusing that item number three might actually be the authors true intent of this entire exercise.
Also... Go Slashdotters! I already see several great rebuttals posted!
For those who are interested in the ACTUAL paper instead of a nested summary here is the link to IEEE http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=4351918&arnumber=4351934&count=17&index=11 if you or your university has a subscription you can get the full PDF here: http://ieeexplore.ieee.org/iel5/3516/4351918/04351934.pdf?tp=&isnumber=4351918&arnumber=4351934
Hmmm... makes me think we need to find the registration timestamps and get this in order. My friend (ID 1854 http://slashdot.org/~m1m3r ) signed up within a week of me if we remember correctly.
I had the same fundamental problem with the redundancy of TCWWW. I swore several times, and never followed through. To start a web site that always redirected to http://qqq.domainname.com/ . Note this also "solves" the cookie problem. ;-)
Of course, I never ended up doing... ah well. Good times back in th elate '90s. Oh and my Everything(2) node http://www.everything2.com/index.pl?node_id=383 registration date makes me feel fairly old too. I jumped on when the DNS information got leaked and got myself a nice "RudeDude" graphic rendered before the box crashed and the feature was turned off.
A really powerful and flexible (generalized) viz tool is OpenDx http://www.opendx.org/ which started as a commercial IBM venture and is now an open source project. It uses visual programming (EG plugging modules together) to generate the visualizations so you don't need to write your on OpenGL or something. Even with just three "modules" plugged together (and all default settings) you'll start to see your data in 2-space or 3-space.
Your thoughts on the economics sound spot on to me.
After reading the entire article I'm forced to summarize it as:
What: An economic bubble burst.
Who: Dvorak thinks he can read the mind of "Every single person working in the media today..."
When: Dvorak doesn't even propose a time/line.
Who/Where: Dvorak lists six items, four of which he nearly dismisses on his own as unimportant!
How: As you say, Dvorak isn't addressing any economics.
Why: Because Dvorak says so?
What a joke.
Does that make me even "better"?
This is a dupe from 2002!!!/ 25/1444241
http://hardware.slashdot.org/article.pl?sid=02/10
The link is exactly the same and according to "Page Info",
the server side suggests the last update was July 2003!
"Risk analysis" is a formal approach to what you are talking about.
To a lesser extent "Decision Science" and "Influence Diagram" are also attempts at tackling this type of problem.
Google scholar will turn up many papers in this area and I know that my school (University of Virginia in the Systems and Information Engineering department) has some active research in "Cyber Security" and related security planning.
http://www.sys.virginia.edu/risk/
Your PC got harshed, right, 'cause your
system heaps at the wrong parameter.
So l toasted the dated directory,
tweaked the P-RAM...
and reglazed your subroutine.
- Crawl, in "Son In Law" (Pauly Shore)
Since many of us don't want to install yet more P2P software, mod up parent!
Torrent
Tracker
How is Freenet not mentioned in this context. It is decentralized and other than the dropped packets / routing needed for anonymity it is swarming dowloads since any node might have the data you need.
If you have the downloads complete, please join the Bittorrent 'network' to share your bandwidth.
I saw this story floating in the mysterious future and tried to warn Malda. I would theorize that he needs to make "The Mysterious Future" a little larger window if he really wants to get help in preventing dupes. Or are there really THAT few subscribers seeing pre-post stories?
Just in case: The PDF review doc
How dare I forget that there is no pleasing the masses! ;-)
I previewed this twice and still missed the "time" typo. Darn human error. I guess is time to write a browser hack to check textarea's for spelling before submission.